PDi_4-2008

Widecut poised to cut a wide swath through the global market pages: 70-71

Diagrip, the new concept p. 60

Volume 8 • No. 4 oct - NoV 08

Demolition:

High Rise Demolition in Parispages: 14-15

Reports:

The Circuit Riderpages: 36-37

Demolition

Nine Case Excavators for Major Demolitionpages: 44-45

Reports:

Passing the Batonpages: 48-50

Reports:

Swiss State-of-the-ArtEngineeringpages: 56-58

Special Feature:

Concrete Floor Grinding & Polishing

Equipmentpages: 16-21

Special Feature:

“Breaking Storiespages: 24-28

Shows:

SAIE 2008page: 30-32

News:

Two More Competitions

Decidedpages: 52-54

“High CycleEquipment”

pages: 38-42

A Company within the SWAROVSKI Group

take part in the 1st international championship in concrete drilling and sawing

win attractive prizes

information on www.cuttingprocompetition.com

ARE YOU THE BEST?

102

Professional Demolition International Magazine

Address:P.O. Box 786, SE-191 27 Sollentuna, SWEDEN

Visitors address:Skillingevagen 14A., SE-192 71 Sollentuna, SWEDEN

Phone: +46 8 631 90 70

Telefax: +46 8 585 700 47

E-mail: [email protected]

Website: www.pdworld.com

ISSN Registration: ISSN 1650-979X

Editor-in-ChiefJan Hermansson, [email protected]

Assisting EditorAnita do Rocio Hermansson, [email protected]

Editorial staffEditor Global: Mikael Karlsson, [email protected]

Editor Demolition: Mark Anthony, [email protected]

Editor Recycling: Heikki Harri, [email protected]

Editor North & South AmericaJim Parsons, [email protected]

Editor Asia PacificSilvana Wirepa, [email protected]

Editor RussiaAndrei Bushmarin, [email protected]

Editor AfricaKevin Mayhew, [email protected]

PublisherJan Hermansson

International Sales OfficesSweden, Norway & DenmarkContact the Editorial OfficePhone: +46 (0)8 631 90 70, Fax: +46 (0)8 585 700 47E-mail: [email protected]

Germany/Austria/Switzerland/Liechtenstein/FinlandGunter Schneider GSM InternationalPostfach 20 21 06 - D-41552 KaarstAlma-Mahler-Werfel-Str. 15 - D- 41564 KaarstGermanyPhone: +49 2131 / 51 18 01E-mail: [email protected]

UK/Ireland/France/Belgium/the Netherlands/Spain/PortugalM. Stéphane de Rémusat, REM - Europe Media ServiceChemin de la Bourdette, F-31380 Gragnague, FrancePhone: +33 (0)5 34 27 01 30, Fax: +33 (0)5 34 27 01 31, +33 (0)5 34 27 01 34, Mobile: +33 (0)6 80 84 43 78E-mail : [email protected]

ItalyMonica Colleoni & Romano Ferrario, Ediconsult Internazionale S.r.l.Via Savona 97, 20144 Milano, ItalyPhone: + 39 02 4771 0036, Fax: + 39 02 4771 1360E-mail: [email protected]

USA & CanadaContact PDi editorial office in Sweden.

Australia/New Zealand/Asia Pacific/Korea/JapanContact PDi editorial office in Sweden.

Rest of the worldContact the PDi head office.

The magazine PDI, Professional Demolition International is published four times per year with a worldwide circulation of 13000 copies. The annual airmail subscription rate is US$ 45. All subscription correspondance should be directed to: The subscription department, SCOP AB, P.O. Box 786, SE-191 27 Sollentuna, Sweden. PDI is mailed by second class postage paid at Stockholm, Sweden. © Copyright SCOP AB 2008

CONTENTSPDi • issue no. 4 Oct - Nov 08 • volume 8

REGULARS

Special Feature

4 PDi • Issue 4 - 2008 • Oct - NOv

NEWS

16 Staus Report: Concrete Flooring Solutions

17 Surface preparation machines by Husqvarna floors the competition

18 News from Blastrac

New grinder for renovation and polishing from Schwamborn

19 Big change

Hiperfloor, a supermarket success

20 HTC Superfloor, the natural choce for the concrete specialst Conjet

21 Two new grinders from Scanmaskin

Exclusive boat demands exclusive floors

Hiperfloor references

24 Breaking stories

Furukawa launches new FRD-XPerience Line

Atlas Copco’s new SB 302

New breaker from Bobcat

Atlas Copco’s new medium-size hydraulic breaker

Sandvik moves mountains

28 Atlas Copco hydraulic breakers in a shopping centre project in Mexico

38 High cycle equipment10 Electric power cutter

Editorial6 Market Drop? Number matter more then ever

Business8 UK Inmalo takes DustBoss distributorship

Bobcat loader auctioned for UNICEF

EDT Eurodima appoints new President

Site Report12 Tales of the unexpected and unexploded for Erith

13 The former DDR Ministry of Health demolished in Berlin

62 Dust control critical for concrete and asphalt recycler

Demolition14 High rise demolition in Paris

34 Advanced marine demolition with Haulotte

44 Nine Case excavators major demolition

68 UK’s demolition and salvage chose MBI

Hydrodemolition22 Conjet invests Euro 1 M in major expansion

Swedish dam gets a facelift

23 Aquajet’s new quite solution for hydrodemolition

Shows30 More then 40 years with SAIE

Reports36 The circuit rider

48 Passing the baton

56 Swiss State-of-the-Art Engineering

64 Hitachi target demolition sector

70 Widecut poised to cut a wide swath through the global market

Recycling46 A new demolition waste centre in East of Finland

Terex Pegson reduces fuel cost by up to 33%

66 Rubble Master a “Rock Master”

Associations74 Top-Down, Top Guidance Still time for 2009 IACDS Diamond Award entries

for deep cutting indoors Machine stolen in UK recovered in Midle East Atlas Copco new compressor feature compact build

52 Two More competitions decided

60 Diagrip - the new concept Mantovanibenne Launches CR100

72 New skid-steer model from Bobcat

Dear Readers

This is a big issue of PDi. There are so many projects going on around the world

and so many new products being released, it is our aim to publish as much informa-

tion as possible. But the world seems to be in turmoil at present. Everyone is talking

about the serious financial crises, but at the same time there is still a lot of activity

in the construction industry, especially in Europe, Australia and some other parts

of the world.

But some information PDi has recently received from contractors and manufac-

turers suggests the complete opposite and indicates the market is completely dead. In

times of recession nobody will commit to starting new projects or buy new machines.

I wonder how much of this recession is a true reflection of an economic downturn

and how much is just a reaction to the daily drop in the stock markets.

We just need to ride out this storm, and as contractors and suppliers to the

construction industry, try to stay focused and continue to work in a professional way.

The good side of working within the demolition, concrete cutting, floor grinding

or recycling sector is that when new projects come to a halt there is always a need

for repair, renovation and extension work. The number of jobs may not be as high,

but there is still work to do. Of course the competition gets tougher and it is in

these periods that it is so important that contractors and manufacturers find a way

to demarcate from competitors. To specialise, to be innovative and to promote your

company from the rest is not an easy task. And in these periods with a very bad eco-

nomic climate, price always comes up as a way to compete and sometimes the only

way. That is a sad development. Sometimes everything that we have been building

up, in terms of knowledge, skills and equipment, gets erased. New, inexperienced and

unscrupulous contractors come in and take jobs for peanuts. We have seen this scenario

before and we are going to see it again. To relieve the affects and prevent this we need

to continue to arm ourselves with more knowledge about methods, environment,

safety, new products and systems and we

need to strive towards being even more

specialised. And to get there and achieve

all this we need to be organised. In dif-

ficult times it is even more important to

be part of a branch association that can

speak as one voice.


Words from O’BrienMarketDrop?

Jan HermanssonEditor-in-Chief

[email protected]

productivity in their operations, and half of

these are focusing on increased training.

Seventy-five percent of the contractors

plan to increase their prices by no more

than 5%.

The cost of operations is a major

concern for contractors with 50%t ex-

pecting fuel costs to increase between 20

and 50%. Several respondents expect to

see fuel costs double or triple. Half of the

contractors expect their manpower require-

ments will remain constant while 34%

believe their labor needs will increase.

Half of the manufacturer respondents

believe that demand for their company’s

products will decrease in 2008. Two-thirds

of this group believe that demand will affect

the diamond tool market segment, while

the other third believes that the “other

equipment” segment will be affected most.

Sixtythree of the manufacturers expect no

growth in the sawing and drilling market

in 2009. Most believe that growth has

slowed because of the slow economy

and the “wait and see” attitude in the

governmental sector due to the upcoming

national election.

This latest effort by CSDA in the

polling of members to get up-to-date

economic data has been a great step for

the development of industry-wide data. In

succeeding years, the data will be refined

and will continue to provide the industry

with guidelines to help current operators

and new entries into the industry make

educated decisions about the growth and

development of their companies.

Best regardsPatrick O’BrienPresident IACDS

Numbers mattermore thaneverIn my 25 plus years of involvement in the

sawing and drilling industry, I have always

found the aversion to submit market data to

define the state of the industry peculiar. I am

not sure the reason for this reluctance, but

suspect that both contractors and manu-

facturers fear that they will give away deep

dark competitive secrets. In my estimation,

it would be helpful to know how the industry

is performing as a whole so that individual

companies can compare their own results

and make changes if necessary to improve

performance.

Ten years ago, shortly after the found-

ing of the International Association of

Concrete Drillers and Sawers, I initiated

an effort to record worldwide contractor

sales, turnover and number of contracting

companies. Many were sceptical that this

effort would be successful, but it has been

just that. Today this data is collected, con-

tinually refined, and expanded to include

virtually every country involved in sawing

and drilling.

This past summer, in order to col-

lect additional information, the Concrete

Sawing and Drilling Association has taken

advantage of the universal appeal and use

of the Internet, coupled with the success

of the CSDA website, to develop an online

survey to gather operational and economic

data on a regular basis. The response rate

was extremely high, with 30% of contrac-

tor members and 20% of manufacturer

members responding.

Contractors reported that half will add

new services such as ground-penetrating

radar (GPR) and demolition and surface

preparation to their operations. Seventy-

one percent of the contractors who

responded are working on increasing

UK Inmalo takes on DustBoss DistributorshipThe UK attachment specialist and importer for MBI, International Marketers (London) Limited, has been appointed UK distributor for the DustBoss line of mobile dust suppression units, manufactured by the US company Dust Control Technology based in Peoria, Illinois. “The DustBoss equipment is crucial to help maintain responsible environmental controls on all types of sites throughout the UK,” says INMALO Managing Director John Polak. “Health and safety is also an is-

sue with the huge reduction in dust and odours for site personnel and often neighbouring premises. Furthermore we are already serv-ing the relevant markets with our range of MBI hydraulic attachments and the addition of DustBoss to this range allows us to provide our customers with a total solution package. We are pleased to be able to offer this quality equipment in the UK.”

www.inmalo.co.uk

Bobcat loader auctioned for UNICEF UNICEF will auction a special gold painted Bobcat S175 skid-steer loader later this year to Bobcat dealers in Europe, Middle East and Africa to raise funds for the ‘Schools for Africa’ campaign. The auction of the unique Bobcat loader is the latest initiative in the 3 year collaboration between Bobcat EMEA and UNICEF Belgium. A second Bobcat

S175 loader will be put on permanent display at the reception area of the Bobcat plant at Dobris in the Czech Republic.

The auction of the gold loader is timed to close the day before St Nicholas’ Day. The dealer winning the auction will be invited to come to the Bobcat EMEA headquarters in Brussels a week later, on Saturday 13 Decem-ber 2008, at the annual Bobcat Christmas party to hand over a cheque for the winning bid to a

representative of UNICEF Belgium.Bobcat EMEA strategic de-

velopment director Lee Har-rison, visited a ‘Schools for Africa’ project in Mozambique earlier this year. “As part of our 3-year collaboration with UNICEF Belgium, we are de-lighted to auction this special 50th anniversary gold loader

to raise funds for UNI-

CEF’s work in Af-

r i c a , ” s a y s

Harrison. “Our partnership with UNICEF Belgium reflects Bobcat’s

commitment to support the development of communities around the world, particularly

the most important people in those communi-ties, the children.”

Last year at the Bobcat Distributor Convention in Prague, a colourful Bobcat S100 loader deco-rated with a drawing by Théo Sisti, the 5-year-old son of an employee of a Bobcat distributor in France, was auctioned to raise funds for UNICEF Belgium. The winning bid came from Fintractor, the Bobcat distributor for Finland, who purchased the loader for EUR 55,000.

The significance of UNICEF’s ‘Schools for Africa’ campaign cannot be understated. In Sub-Saharan Africa alone, approximately 45 million children do not go to school. Information about ‘Schools for Africa’ is available at www.schoolsforafrica.com.

EDT Eurodima appoints new President

Rothenberger Group, owner of EDT EU-RODIMA in Salzburg, Austria, has appointed Wolfgang Stangassinger as new President of EDT EURODIMA from 1 September, 2008.

Wolfgang Stangassinger has been work-ing with the professional concrete sawing and drilling industry for several years and his previous appointment was with Hilti.

When PDi met Mr Stangassinger he answered questions about EDT EURODIMA’s future plans and said that the company will concentrate on the core business to a bigger extent than earlier.

Stangassinger says that EDT EURODIMA is going through a restructuring where each part of the company, as well as its products, is being analyzed.

“We want to focus on what we are par-ticularly good at and in these areas we want to grow organically” says Mr Stangassinger. “Parallel with this we are also investing a lot in new development of diamond tools as well as new and more efficient machinery. In terms of markets we will concentrate in those where we have a good foothold like central Europe,

Scandinavia and USA”.EDT EURODIMA recently launched the

Duramant diamond tools, which are built by a special and secret welding technique providing a special bond. Efficiency and the total life of the tool is radically increased with Duramant. Some 85% of EDT EURODIMA’s sales comes from Europe. The goal is to double the turn over within five years. To reach that goal the company will continue to develop new patents and products and build up a stronger sales and marketing force.

“In order to reach our goals we need to become more present in our strongest markets and also in the long run on new markets. Eastern Europe and Russia are definitely areas where we can increase a lot,” says Stangassinger.

EDT EURODIMA has a strong new owner in Rothenberger Group, owned by Helmut Rothenberger. Rothenberger has its head office in Kelkheim outside Frankfurt, Germany and has over 5000 employees and sales world wide.

www.eurodima.com

Helmut Stangassinger has from the 1 September been appointed new President for EDT EURODIMA, owned by Rothenberger Group in Germany.


Scan Combiflex 180EG

Scan Combiflex 700RC

No strain on operators

High capacity for removal and grinding

Continuity in grinding work

Exact grinding speeds

Radio controlled

Scan Combiflex 650

Scan Combiflex 500i

Scan Combiflex 45

When grinding is at its best.

Smaller jobs on larger surfaces.

Large and small alike.

Snap On™ – One system, no problems!

Two new Series 1 portable air compressors from Atlas Copco, the XAHS 107 and XAS 137, feature a significantly smaller canopy and single axle undercarriage. Rated to provide a free air delivery of 93 l/s (197ft3/min) at 12 bar (175 psig) and 127 l/s (269 ft3/min at 7 bar (102 psig) respectively, the new models closely follow the successful launch of Atlas Copco’s mid-range XA (M, T, H, V) S 307- 407 featuring a similar concept with reduced canopy size.

The new range has been designed to offer customers, particularly in the rental and con-struction sectors with reduced operating costs. The canopy has been optimized, whereby the reduced dimensions and lighter weight allows the operator to easily manage the compressor from site to site. The canopy also provides excellent access to all service and maintenance points. All replacement parts are conveniently grouped and within easy reach, ensuring reduced maintenance times.

Powered by the COM 2 (C2), and in January 2008 the latest COM 3 (C3) compliant Deutz 4-cylinder diesel engines, the Series 1 compressors meet the latest exhaust emission and noise directive criteria for off-highway

vehicles.The compressors have the best fuel con-

sumption in their class, the company claims and are equipped as standard with a fuel tank of 117 litres for a minimum full-load 8 hour shift.

The units are capable of operating in all ambient temperature conditions and are ideal for running pneumatic breakers, general construction work, sandblasting and use in rental fleets.

Another feature available on this unit is COS-MOS™, Atlas Copco’s new electronic remote global management system that allows custom-ers to reduce cost of ownership with a wealth of information on the compressor’s operation and service. COSMOS™ uses the GPRS/CDMA network, which supplies accurate and up-to-date information. GPS ensures that equipment can be tracked at all times and at any location.

The new models feature a common air and engine intake filter, where an optional safety car-tridge for all air intake filters can be fitted. A broad range of options is also available to suit almost any application, including after cooler with water separator, fine filter or re-heater, road signalization, spark arrestor and refinery equipment.

www.atlascopco.com

Atlas Copco new compressors feature compact build

Machine stolen in UK recovered in Middle East

Cutting deep at a lower cost sums up the benefits of the new Husqvarna K 3000 Cut-n-Break power cutter. This new electric power cutter allows cutting up to 400mm indoors at a low tooling cost.

Husqvarna launched the petrol-powered K 650 Cut-n-Break saw in 2006 and was popular among users. There is now an electric version of the machine, the Husqvarna K 3000 Cut-n-Break power cutter designed for indoor use. “The K 3000 Cut-n-Break allows users to cut deeply into materials indoors in a flexible way. It is simple to use, versatile and has a lower tooling cost than a diamond chain saw,” says Husqvarna Construc-tion Products power cutters product manager Håkan Aldén.

T h e K

Electric power cutter for deep cutting indoors

3000 Cut-n-Break is equipped with two blades. After it has cut two grooves, a tool follows the cutter to break out the pieces of concrete between them. The user can then cut more deeply into the material. It has a maximum cutting depth of 400 mm. The K 3000 Cut-n-Break allows level cutting right up against walls and floors. Other applications are window and door openings without over-cutting, sawing grooves and crack renovation. Just like other cutters in the group, the K 3000 Wet and the K 3000, the K 3000 Cut-n-Break is equipped with Elgard™ overload protection and SoftStart™ for gradual starting.

www.husqvarnacp.comTechnical facts about the K 3000 Cut-n-Break• Cutting depth: 400 millimetres

• Motor: 230V, 12A (EU)

• Supplied with a breaking tool

• Supplied mounted with specially developed

diamond blades (patent pending) and

a breaking tool

• Sealed transmission keeps cutting dust out and

reduces wear

The recovery record of nearly 98% of A-Plant’s A-Trak GPS satellite tracking and security system used to protect the machines in the UK company’s hire fleet has been demonstrated by the successful recovery in Sharjah in the Middle East of a JCB skid-steer loader stolen from the

UK. Fourteen days after the initial theft in Eng-land, the Sharjah police took two suspects into custody together with the skid-steer loader.

A-Trak, one of the security mechanisms used by A-Plant to prevent plant theft, was developed jointly by A-Plant and Enigma Vehicle

Systems with security as the principal require-ment. Thieves cannot beat the system even when they take machines abroad. The A-Trak system utilises mobile General Packet Radio Service (GPRS) devices, fitted to A-Plant equipment, which provides Internet tracking and telematics information by communicating with host serv-ers. A-Plant customers can access the service through the Extranet at the company’s website www.aplant.com and can obtain a wealth of information about the status of the equipment they have hired, to check that the equipment is operating as desired, is being used properly and that it is at its intended location.

All equipment covered by the A-Trak system remains in contact with the server all year round, 24 hours a day, seven days a week, so its status is available at all times. Once linked to the A-Trak system, customers can request positions,

ring fence machines and send text messages to remotely immobilise and/or release equip-ment. Customers can even generate an aerial photograph of the site where the equipment is located. These can then be used to guide the police when they are attempting to recover stolen plant.


Two become One

T: +44 (0)1283 212121 F: +44 (0)1283 217342E-mail: [email protected] [email protected]

www.extec.eu www.fintec.com

Two become One

T: +44 (0)1283 212121 F: +44 (0)1283 217342E-mail: [email protected] [email protected]

www.extec.eu www.fintec.com

where they were supposed to be, before excavation and piling began in preparation for the construction of the underground car park beneath the flats. Needless to say they were not. “The remedial work is usually very self contained; we come on site and check all the searches have been completed. We usually take a week to set up the site, plan the buildings, organise the power, and arrange for equipment, materials and fixtures to be moved from other sites. But we knew we had an urgent problem when we could hear electricity cables arcing beneath our feet, especially when all the power to the site was supposed to have been switched off,” says senior project manager John Shepard. “To say this was the start of some interesting investigative aspects of the site would be a major understatement. EDF was immediately called in to isolate the power supply so that could we set about finding out just what was beneath our feet. Although a complete radar survey subsequently located all the major utilities, plus the drainage systems, I don’t think anything was where it was supposed to be according to the original plans, and there were a lot of additional features that weren’t even supposed to be on the site. And, just to compound matters, the site was also thought to be in a high risk area containing unexploded ordnance from the Second World War.”

Danger UXB?Rochester based bomb disposal specialist Bactec sur-veyed the entire site using their BXP mobile system.

The prospect of unexploded World War II ordnance and underground utilities in unex-pected locations were all part of a day’s work for the UK’s Erith Group tackling the demo-lition to make way for the new Greenwich Wharf Development in the heart of London. PDi’s Mark Anthony reports.

The development involves the rejuvenation of a 5 hectare former industrial site next to the River Thames and close to the O2 Arena, or the Millennium Dome as it was formerly known. This prime housing site will be home to 500 flats and much needed afford-able housing. However, as the London Docks were specifically targeted by the Luftwaffe during the Blitz, the normal ground survey included a detailed search for unexploded bombs.

Site SurveyInitially the site was cleared of the buildings, dry docks and the scrap yard prior to a major survey of the area. This was to ensure that the utilities and drainage were

UnexpectedUnexploded

Tales of the

and

for Erith

This entailed drilling a series of 2-3m deep holes, each 1.5m apart, into which equipment similar to radar was lowered. The readings eventually gave the site an all clear, so that piling could begin in earnest.

The next priority was to ensure the seawall was sound as the adjoining underground car park would be 3m below the high water mark. Erith Group, in conjunction with the Environment Agency, reinforced the site using a pair of piling rigs. The first machine used a vibrating system to drive the piles down to a depth of 13m when an impactor guaranteed the final 2m of penetration. As the site is close to a large residential area, containers were placed between the houses and the piling rigs to act as baffles and reduce sound levels by 20 dB(A).

Exporting ClayErith have also had to divert the Thames footpath around the site and made a temporary road to divert traffic away from the residential areas. Clay extracted from the site was taken to Tilbury and used for land reclamation. Two barges, each capable of carrying 1,000t of clay, are used in rotation on alternate days. It takes just two hours to load the barge using a 35t Hitachi excavator. Using the barges is a major envi-ronmental coup as each load saves 200 lorry move-ments. As a further plus to the environment, there is a sweeper in continuous use to ensure the roads are clean and that dust is kept to an absolute minimum. This has all been done with close public consultation and as a result there have been remarkably few complaints. Erith has also had to divert all the services, electric, gas,

The five hectare site forms part of the London Docks that were specifically targeted by the Luftwaffe during the Blitz.

Father and son John Shephard (John jnr left) formed part of Erith’s on site team.


phone, water and Virgin Media, and create a new 2m diameter storm water outfall and provide new street lighting for the area. The existing substations have remained on site while EDF builds a new one.

Diverting PowerErith has also diverted the power cables around the old dry docks in phase 1 to enable the developers to start work on the other site. The creation of the piling pound for the flats had to be carefully constructed as the land slopes away from the river and would have acted as a reservoir if it had not been built with con-siderable thought and planning. Wells have been created throughout the site so that water levels could be constantly monitored. It was soon realised that the flood tides could easily breach the site, so the seawall is sandbagged as an additional safeguard. When the new seawall and footpath are rebuilt, the level will be raised to permanently remove the risk.

All the buildings have been stripped and the metal recycled at Edmonton. Remaining materials were crushed and screened on site to segregate the more valuable elements from the waste. The majority will be used as the site-piling platform although this too created its own challenges, as the site wasn’t big enough to store the recycled material. Erith’s solution was to pile the entire area, then excavate the southern part whilst crushing in the northern area of the site. Once the excavations were completed, recycled material was moved into the excavation area, the excavated clay moved off site by barge and the remainder screened and stockpiled.

“Despite feeling as though we were working blind at the start of the project, we have organised the site to enable it to be cleared, recycled and developed in rotation in the shortest time possible. Almost every el-ement of the redevelopment had to be rethought once we started work,” adds John Shepard. “But it is now safe, on schedule and when completed, will hugely enhance the area. Instead of a disgusting site and derelict scrap yard there will be much needed housing for over 500 families and definitely no bombs.”

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The former DDR Ministry of Health demolished in BerlinThis summer the German company Philipp Halter Gmbh&Co KG used FRD’s combi cutter/crusher VC 15FT to demolish the former DDR Ministry of Health in the centre of Berlin. The previous Ministry had to make way for a new Hotel.

The former DDR had their Ministry of Health near the Alexander-splatzes in the centre of Berlin. The old ragged, socialistic building was becoming more of an annoyance since the shopping centre Alexa, at the other side of the street, had been developed. With the building of a new Hotel complex the old Ministry, with a surface of about 42,000 m2 had to be demolished. The company Philipp Halter GmbH & Co KG from Berlin was con-tracted to do the job. The project started on 19 November 2007 and had to be finished on the 4 June 2008. During this period shifts worked from 07.00 until 20.00. All demolished materials were recycled. For the demolition of the foundation, made from steel and reinforced concrete, project manager Gerd Clasen used FRD’s combi cutter/crusher VC 15FT. This combi cutter/crusher, with an operating weight of about 1300 kg, opening width of 660mm and 340mm cutter length, could be used to demolish all the steel and concrete construction. Gerd Clasen was enthusiastic about the combi cutter/crushers results. He was also content with the service of the local dealer Technik-Service, who came to install the new combi cutter/crusher, serviced it during the start up phase and provided back up, when needed, during the project.

www.frd.eu

With an incredible power FRD’s combi cutter/crusher cuts through the building.

CPT Truck - Bomb disposal specialist Bactec surveyed the entire site using their BXP mobile system.

A pair of barges were used to transport clay off the site to nearby Tilbury for land reclamation.

Issue 4 - 2008 • Oct - NOv • PDi 13

High rise demolition in Paris

“I am very pleased with how easy and smooth it is to operate these machines with the remote control in very tight spaces, and also how easy it is to transport and lift it up in high buildings like this one,” says Carlos Bento, who operates a Finmac F16 high up in the Axa building.

www.finmac.fi

Three of them are currently working with controlled demolition and renovation of the 155 m high “Tour Axa”, built in 1974 in the downtown business area of La Défense in central Paris. With an investment of around EUR 300 million, this is today one of the largest jobsites in France that will go on for three years with more than 1,000 workers and a huge number of construction machines and cranes involved.

Drilling and crushing in 39 storeys

“We have been sub-contracted by the well-known French civil construction company, Bouyges Construction, to drill and crush the old concrete structures in the 39 storey building. And we have actually completely demolished the seven highest stories that will leave place for 15 new stories to make this the highest sky scraper in the La Défense, 218 m” says Hubert Seveno of the demolition specialist company SFB Morbihan,

“The main reason that we use radio controlled demolition machines on this site is that we have to demolish some 52,000 m2 of surfaces with asbestos were our people have to stay away from the contamination risks. SFB is qualified for asbestos treatment according to the French “qualification 1512“, an asbestos certifica-tion issued by the national construction organization Qualibat.

“Further we always want to use this kind of robot machine in demolition and deconstruction of buildings where the sites are sensitive to noise and vibrations. Because we have today many urban and sensitive areas were our clients demand sophisticated and controlled deconstruction to renovate for example hospital and office premises.

First in FranceSFB is the very first specialised demolition company to use the Finmac F16 in France. “I must say I am well convinced that this machine will be well received here on the French demolition mar-ket for all its competitive machine features, says Hubert Seveno.

It weighs just over 1.6 tonnes with a reach of over five metres as well as having an option of telescope extension. The transport speed is 2.8 km/h and the width is 795 mm, enabling it to move through a standard doorway. The machine has an effect of be-tween 7.5 and 22 kW, depending on the customer’s choice.

A standard machine is fitted with rubber tracks. However steel caterpillar tracks can also be used when working on warm surfaces. The Finmac F16 also has two separate hydraulic valve blocks, one in the frame of the machine and one in the upper carriage which can rotate 360 degrees.

Finmac Demoli-tion Oy, the Finnish manufacturer of radio controlled demolition machines, is succes-sively expanding its international sales and distribution of the newly developed product, Finmac F16, to various new markets around the world. Five machines have recently been delivered to France.

Con-trolled de-

molition and renovation of the 155 m high “Tour Axa”, built in

1974 in the downtown business area of La Défense in central Paris, one of the largest jobsites in France.

Text and photo: Mikael Karlsson

Finmac F16 is a new radio controlled demolition machine on the market that weighs just over 1.6 tonnes with a reach of over five metres as well as having an option of telescope extension.


High rise demolition in Paris

The seven highest stories have been com-pletely demolished that will leave place for 15 new stories to make “Tour Axa” 218m high, the highest sky scrape in the La Défense.

Currently SFB has three Finmac F16 to drill and crush the old concrete structures in the 39 storey building. For example, a 56,000 m2 of surface with asbestos has to be demolished with severe control and treatment.

Hubert Seveno of SFB.

Carlos Bento operates the Finmac F16. “I am very pleased with how easy and smooth it is to operate these machines with the remote control in very tight spaces, and also how easy it is to transport and lift it up in high buildings like this one.”



What has happened in this field during the last year? The trend is the same that more and more manufacturers and contractors have been involved in grinding and polish-ing of concrete. HTC Sweden is still by far the dominant manufacturer with a turnover of more than EUR 31M (US$42M) in 2007. Since Husqvarna Construction Prod-ucts acquired King Concepts in Australia the company has become an alternative in the world market building up its positions not only is the Asia Pacific region, where they dominate, but also in Europe and USA.

QuestionnairePrior to this article PDi sent out a questionnaire to the majority of manufacturers of floor grinding and polish-ing equipment, but only three companies answered; HTC Sweden, Husqvarna Construction Products and Scanmaskin.

PDi asked in which of the two sectors, concrete floor grinding or concrete polishing they saw the biggest poten-tial. HTC said that both sectors have great potential but will vary a lot from market to market and is combined with tradition and maturity. Husqvarna believes that floor preparation still has the biggest potential, but with the right information and marketing, polishing can become big a market. Scanmaskin considers that concrete polish-ing has the biggest potential. Scanmaskin had a turnover of around EUR4M (US$5,5M) in 2007. About 70% of their production is machinery and the rest is diamond tools. About 70% of sales are in the floor preparation industry, about 10% in the concrete polishing sector and the remaining 20% to other industries.

The futureWhen asked how these three companies believes the mar-ket will grow during the coming three years both HTC and Scanmaskin were reluctant to answer. But Husqvarna believes that this sector will grow with about 6-8%.

In marketing Husqvarna mainly focuses on flooring contractors and rental companies at present and it is in this

sector that they see the biggest potential. Demolition and concrete cutting firms are still the dominating client sectors. HTC does not differentiate between the types of contractor segment that they focus on. All are given the same attention, but professional

flooring companies with no relation to demolition or

concrete cutting are also a n i m -p o r -

tant client sector. HTC thinks that both concrete floor grinding and concrete floor pol-ishing are still maturing,

which means that the level of potential varies from market to market depending on the stage they

are at. Scanmaskin says that it is mainly in floor preparation they are dealing with demolition and concrete cutting contrac-tors. Both Husqvarna and HTC Sweden

are global players and strong effort is made in each market through own subsidiaries and distributors. Scanmaskin so far mainly concentrates through its own subsidiaries in the Nordic countries and through distributors in the majority of the other European countries.

Future machinery and tools for concrete floor grind-ing and polishing will be more sophisticated with an even higher focus on the user according to Husqvarna. HTC believes that efficiency and reliability will be prioritised.

Billions of square metres waiting to be ground and polished

Concrete floors are the most popular. It is difficult to estimate how much concrete flooring needs to renovated in the world, and even more difficult to estimate how much can be polished. Husqvarna believes there are many hundred millions of square metres just in Europe. In a similar feature last year, HTC estimated about 30 billion square metres worldwide. The value was about EUR 97 billions (US$136 billions). These are big numbers but compared to other types of flooring solutions it is still a long way to go. We can expect that the numbers men-tioned have not declined, but due to the current financial situation we can also expect that several bigger flooring projects will be put on hold.

More suppliers and increased co-cooperation

But beside the three manufacturers kind enough to share their expectations, there are also other players like Blas-trac, SPE International, Eagle Solutions, Schwamborn, Innovatech, VIC International, Hamatic, EDCO, Prep

Stat

us R

epor

t:

Concrete floor grind-ing and floor polishing are regularly featured in PDi. The reason is simple. Demolition and concrete sawing and drilling contrac-tors have found that they can also offer concrete floor grinding and polishing ser-vices. Concrete floor polishing came as a kind of bonus when HTC Sweden intro-duced their Superfloor method some years ago. On the following pages we report on the status of the floor grinding business.

German manufacturer Contec is new distributor US In-novatech’s equipment in Europe. To the left Contec’s Johannes Greb and Roger Wiggins from Innovatech.

Surface preparation machines by Husqvarna floors the competitionTougher, faster and more flexible. Husqvarna’s new line of machines for surface preparation and finish-ing hasn’t been on the European market for more than 12 months, but has already made

“We’ve tried everything else on the market and nothing comes close to this,” says Fredrik Ohlsson, project manager at ”Riv och sanering”, the first customer in Sweden.

Seven complete sets of machines for floor grinding, polishing and dust containing. That was what “Riv och sanering” (Demolition and redevelop-ment) was using, up until they were hired by Swed-ish construction company JM for the first phase of the renovation of the Tax Department building in Stockholm. The job included light demolition of eight floors, with a total of some 20.000 square meters, a project that required a strong machinery boost to the team. Fredrik Ohlsson had just been informed about the new Husqvarna product line and got to test drive the PG 530 along with the DC 3300 – an industrial dust extraction unit, featuring three different filters, a unique bag disposal system for hazardous materials and the ability to function in both dry and wet conditions.

“The difference, compared to our other machines, was striking. The PG 530 had a very stable and even movement, was ergonomically well designed and gave a high quality result every time,” says Fredrik Ohlsson.

“Riv och sanering” was the first company in Sweden to buy the new PG 530. Together with two larger models (PG 680 and the PG 820), and two powerful industrial dust collectors, it constitutes the brand new product line for surface preparation. The grinding and polishing machines were added to the Husqvarna product range after the acquisition of an Australian company, and are quite unique in the industry. The new range features several enhancing characteristics such as the Dual Drive TechnologyTM which is based on a system with two separate mo-tors – one for the grinding discs and one for the planetary head. This gives the user total control over speed and direction, which means more flexibility and a wider range of applications.

The demolition project for JM stretches from August this year until about March next year.


Master, Ravan Enterprises and Connex.Blastrac has, even though it acquired the Dutch

manufacturer Diamatic some years ago, not been so ag-gressive marketing in the floor preparation sector. There are rumours that they have suffered from HTC’s strong market domination in the UK for instance. But this year has seen some new Blastrac grinders released and there is more information on those on the following pages.The US manufacturer Innovatech Products has decided to enter the European market through cooperation with German manufacturer Contec. This was announced at the IRE show in Amsterdam last spring. Innovatech owner Roger Wiggins said that Contec would market the full range of Innovatec grinders, strippers and mill-ing machines in Europe. Also Innovatech Products and Eagle Solutions are partnering in the US. They will both support each other in their sales efforts and in the free training that Eagle offers. Since Innovatech is on the West Coast and Eagle on the East, they will have fast turnaround on orders with their alliance. In addition the Blue Ribbon Service that Eagle offers will allow Innovatech equipment owners to have access to Eagle’s nationwide service technicians for on-site repair in most locations.

In the US Eagle Solutions is offering free concrete polishing training. Innovatech, along with other sup-pliers like Versaflex, L&M, Ruwac, Scoffield and many more, share in these training sessions. Eagle Solutions says that it is a great way for contractors to see the big picture when it comes to polishing and has so far been very successful.

Rental top priority in EuropeThat the rental industry is a prioritised sector among the suppliers of floor grinding equipment was very obvious at the IRE Rental Show in Amsterdam. All the bigger companies, like HTC Sweden, Husqvarna Construction Products, Connex, Innovatech, Contec, Schwamborn, JCH Machines & Tools and Blastrac were there. A comparatively new company JHC Machines and Tools from Sweden also had its products on display. JHC is a joint venture between Jerneviken Maskin, Hamatic and Centraction. Jerneviken supplies the diamond tools, Hamatic is a manufacturer of floor grinding machines and Centraction is a manufacturer of dust extraction

equipment. The joint venture company has launched the Floorman range of grinders containing five different models for floor preparation and floor polishing.

The biggest floor grinder in the world, HTC Sweden’s HTC 2500iX, is becoming a more and more common sight on large scale jobs.

Hamatic’s range of floor grinders sold by the Joint Venture JHC Machines & Tools. Below the HTC 650 HDX.

Schwamborn is launching the new heavy duty diamond grinder DSM 650S. The machine is equipped with contra-rotating diamond tools and suited for coating removal, grinding and polishing of concrete up to a high gloss polished concrete crystal finish. A unique feature is the ETX-Easy-Tool-Exchange system, which allows a quick diamond exchange to reduce setup time.

More operator comfort is provided with the new ADS- Antishock-Drive-Suspension, which disconnects the drive unit from the main chassis to reduce machine vibration when working under heavy conditions. The integrated suction system allows the easy connection of an external vacuum device for dust free operation. To increase or adjust the grinding pressure the DSM 650S can be equipped as an option with two swing away saddle weights.

www.schwamborn.com

Technical Specification DSM 650SMotor 3x400V/50Hz, 7.5 kWVariable speed control 0 to 1200 r.p.m.Weight 290/340 kgWorking width 650 mmTank capacity 40 l


BLASTRAC was the inventor of the first mobile shot blast cleaning machine in the early 80s. Blastrac offer horizontal and vertical shot blast cleaners, grinders, scarifiers, strippers, handheld equipment, steel machines. Customized projects like remotely-controlled and truck-mounted units. The company also has a large programme of specific tools and accessories to match all applications. Blastrac is also strong in service, training and advice.

Blastrac systems are the preferred method for surface preparation used by contractors in a wide range of industries including decorative and industrial floorings, painting & coating, shipyards, storage tanks, highways and bridges, demolition, decontamination, airports and more.

This year Blastrac has introduced a large range of rental machines. The Blastrac Rental Programme is based on single-phase machines 230V (continental Europe) or 110V (UK), easy to plug on every job site. Blastrac also offer some equipment with petrol motor, for larger, outdoor applications.

2008 newsBlastrac has released the shotblaster Blastrac 1-8DPS3 for small to medium-sized jobs. The 1-8DPS30 is heavy duty enough and reli-able enough to be suitable for rental use. The 1-8DPS30 is a walk-behind shot blaster that when connected to an appropriate dust collector provides a virtually dust-free, environmentally friendly environment.

Blastrac has also launched the smaller 1-7D developed for smaller sized jobs. Its versatility and manoeuvrability make the 1-7D shot blaster easy to operate and transport. The 1-7D is a walk-behind shot blaster that can be connected to any dust collector for a virtually dust-free, environmentally friendly environment.

Another new product is the single disc petrol driven floor grinding machine BGP–250. It has all the features of the BG-250 Concrete

Grinding with a petrol powered motor for ease of use. It is dust free if

connected to an appropri-ate dust collector. It has a special drive system

for optimum load distribution and no risk of underground deterioration. It is easy to use, no training necessary, ready to work and nothing to set. It has very low vibration and vi-brations in the rubble handle

is eliminated. It fits all surfaces and floors and after using it there is

no need for manual finishing. It can grind up to 20 mm from edges and

News From Blastrac100 mm from corners. It is a heavy duty, high performing equipment.

It has a working width of 250 mm and the machine weighs 115 kg with the 11 hp alterna-tive and 122 with the 13 hp motor.

Another new grinder is the triple disc electric BMG–435. The Blastrac BMG-435 is the smallest planetary grinder on the global market, according to Blastrac. It’s a triple-disc concrete grinder designed for various sizes of horizontal surface preparation applications. It is an ideal machine for companies deal-ing with coating or concrete grinding applications. The BMG-435 concrete grinder is dust free when connected to the appropriate dust collection system.

The grinding width is 435 mm. It has three planetary rotating discs of 155 mm. The machine can be split for easy transport upstairs or in vehicles and fits all surfaces like concrete, granite, stone.

Blastrac has also released the electric single disc grinder BGS–250. The Blastrac BGS-250 is a single-disc concrete grinder designed for small to medium horizontal

surface preparation applications. It is easy and comfortable to use with no vibrations. The BGS-250 concrete grinder is dust free when connected to the appropriate dust collection system. The grinding width is 250 mm and it can grind right up to the edge. It has an adjustable grinding depth and fit all surfaces like concrete, granite, marble, stone. The machine is available in either 220V or 400V. It is compact and light, weighs only 70 kg which means easy to transport and carry upstairs.

Blastrac has also launched two new scari-fiers and planers, one multitask rider and one compact walk behind stripper and scraper. The market has also seen the launch of an industrial gas dust collector as well as a new electric dust collector. The electric dust collector BDC-1216 is ideal for hand tools. It is lightweight and easily portable. With a 40 litre

dust container, the BDC-1216 will keep the job going uninterrupted for longer periods. It has a M star filter 1.5 m2 area

and a HEPA filter is optional. Dust hose inlet is 15 mm in diameter.

www.blastrac.com

Blastrac BGP 250

Blastrac BGS 250

Blastrac BGM 435

Blastrac BDC 1216



Dramatically improved surface preparation output and reduced costs were the results when Chinese based surface preparation contractor Advance Specialist Treatment Engineering Ltd began to use Husqvarna’s machines for floor grinding.

Husqvarna has assisted Astel to improve output and completion times on a 45,000m2

resurfacing project at one of the most pres-

Big change!tigious casino resorts in Macau. In a country where the use of low cost labour is considered one of the critical means of controlling costs, Husqvarna was given the opportunity to demonstrate how high efficiency machinery can manage labour costs more effectively and produce a superior concrete surface finish. The solution was the Husqvarna concrete grinder PG 680 and the DC 5500 dust col-

lection system.“Our client needed to remove a well

adhered polyurethane coating and prepare

using multiple labour and hand held grinders they could only achieve an output of 200 m2/day. They also tried other surface preparation machines, but were unable to achieve any-where near the necessary standard or outputs to complete the project on time. However, by purchasing a PG 680 they were able to reduce their workforce, reach the necessary standard and catch up their programme.

This increase in benefits is due to the grinding profile and floor flatness made possible by Husqvarna’s range of planetary grinding machines and diamond tooling. The project was undertaken external ly where traditionally coatings are exposed to volatile conditions during installation. With Husqvarna’s surface preparation methods, the concrete surface is left with significantly more integrity then alternative floor preparation methods and the project can be completed in shorter time frame giving Astel the oppor-tunity to install their concrete coating during opportune times.

Pro Gr ind Aust ra l ia , one of Aust ra l ia ’s leading gr ind ing and pol ish ing compa-nies, was put to the test in a supermar-ket pro jec t us ing Husqvarna gr ind ing e q u i p m e n t a n d t o o l i n g. P r o G r i n d , spec i a l i s t s i n Husqva r na ’s conc re t e pol ish ing system HiPERFLOOR™, was contracted by one of the largest reta i l -ers in Aust ra l ia to pol ish the 2,660m2

o f concre te in the new P len ty Va l ley Supermarket.

I n i t i a l l y cons ide r i ng v i n y l f o r t he store, the cl ients were impressed by the longev i ty, low maintenance and incred-ib le sh ine o f H iPERFLOOR™ and i t s decorat ive high gloss f in ish. Using three Husqvarna PG820s and DC 5500s the company was able to complete the f loor to a 3000 gloss leve l wi th a premium enhance f in ish, wi th in 4 weeks.

Husqvarna’s l ine of sur face prepa-ra t ion mach iner y enab les cont rac tors to ach ieve opt imum resu l ts f rom f loor g r i n d i n g a n d r e f u r b i s h m e n t , r i g h t

the surface to receive a new material,” says Husqvarna Asia Pacific region product man-ager Chris Van der Veen. “At the beginning,

”We were very satisfied with the quality of finish produced by the PG680 and with its effi-cient output. Husqvarna’s technical advice and sales services has also been great,” says Astel managing director David Bowden-Brown.

Benefits from the Dual-Drive Technology

Of particular benefit on substandard floors is the exclusive Dual Drive Technology™. This feature delivers market-leading grinding stability on rough surfaces as well as a highly aggressive grinding action, flatter and more even floors, resulting in more homogenous floor requiring less filling and therefore less exposure.

Astel’s investment in the PG range of Surface Preparation machinery and diamond tools along with the cooperation of Husq-varna’s specialised support staff has provided a competitive edge and the ability to produce significant returns in a very tight and price conscious market place.

www.husqvarnacp.com

Hiperfloor, a supermarket successthrough to h igh end, h igh per formance decorat ive and indust r ia l f loor ing.

www.husqvarnacp.com


The Swedish company Conjet AB, based in Haninge, about 20km south of Stockholm is a world leader specialising in the manufacture of remotely operated high-pressure water jetting hy-drodemolition machines. These are used

in conjunction with con-crete repairs to remove concrete from sensi-tive structures, such as bridges, parking decks, dams, and tunnels. In direct response to the continuing and growing world-wide demand for Conjet AB products and services, the c o m p a n y

is currently extending its equipment assembly building to cope with the increasing business. The new extension will more than double the assembly area and house a much larger parts stock holding section.

HTC Superfloor, the natural choice for the concrete specialists Conjet

Conjet AB are experts in concrete technol-ogy and their natural choice for the building’s new concrete floor was the HTC SuperfloorTM. “We know HTC and its founder Håkan Thysell from the many exhibitions we have attended together on neighbouring stands,” says Conjet sales and marketing vice president Lars- Göran Nilsson. “We have chosen HTC SuperfloorTM because we wanted a clean, smooth and low maintenance glossy floor in our new assembly hall, as we do not like painted floors as paint flakes off.”

Conjet contacted HTC during the planning stage for the new building and they selected to work with contractor Svensk Golvkonsult AB, a certified Superfloor grinder. SGK was involved right from the start of the project and has placed the concrete and ground the floor to provide the HTC SuperfloorTM finish required. “To get the

right aesthetic finish it was important to show the ballast in the concrete and we have achieved that with the HTC SuperfloorTM produced by our contractor SGK,” adds Conjet president Carl Strömdahl.

Dybeck Bygg AB is a building company special-ized in renovating apartments and houses. The company has just moved into new premises on Narvavägen in Stockholm, or perhaps you should say old premises half a flight down an old apart-ment house on fashionable Östermalm. Before the move they decided to renovate the rooms. They took away 2 layers of plastic carpet and 1 layer of clinker and were just about to start using the scarifier to take away putty when they found that underneath the putty there were beautiful ceramic tiles, probably the original floor of the house that was built in the end of the nineteenth century. Luckily the scarifying was stopped im-mediately and instead Linds Terrazzo AB and PM Industrikonsult AB was called in to grind the floor instead. With machines from HTC Agne Lind at Linds Terrazzo AB and Tony Palmgren from PM

Industrikonsult AB grinded an absolutely awe-some floor, a more than 100 year old floor that now represent the entrance to Dybeck Bygg Ab. PM Industrikonsult also grinds HTC SuperfloorTM and in a room behind the entrance the old concrete was grinded to HTC SuperfloorTM by Tony. The result is a smashing floor that is smooth


What treasures can be found under an old carpet?

and easy to clean and that gives a boost to the whole old and very nice premises.

Christian Dybeck, MD of Dybeck Bygg AB, is pleased with the result:

“I am super happy. It is really nice. It is the kind of floor you wish you had at home,” he says.

Gulves in Stockholm is a company that sells exclusive boats. To have a spotless, nice and easy-to-clean floor they have chosen HTC Superfloor. The floor has been grinded by IGS (IndustriGolv Sweden AB) which is a certified Superfloor- grinder. The light floor makes the boats reflect in the gloss and enhance the luxuri-ous and pure feeling. Jonas Landh and myself went up to Stockholm to look at the floor, not the boats! We were met by Göran Andersson, who sells these exclusive boats. He is very satisfied with the floor.

“I walk 40 – 50 hours per week, which demands a good floor. The concrete floor is, quite contrary to what you think, soft to walk on and good for the body,” Göran says.

“The floor is easy to clean and perfect for this kind of business, he continues. The boats are big and heavy and you drag huge trailers which altogether weight up to 7 tons on the floor. The floor must not break and the marks from the wheels must be easy to take away. HTC SuperfloorTM is very easy to clean and with a scrubber you can easily remove the marks etc.


Hiperfloor referencesBelow som examples of the Hiperfloor method marketed by Husqvarna Construction Products and created with their diamond tools and machinery.

Exclusive boats demands excluxive floors

Also oil stains are easy to wipe off. In other words, the floor is very rewarding to work on. Besides, the light gives nice reflections and the hall is bright and nice. It is also very easy to move the boats around.

“I can only think of one disadvantage with the floor, Göran continues. It is that it is so bright that it is difficult to take good pictures of the boats using a flashlight, the contrast are not clear enough. However, this is a small problem and all the advantages outweigh by far”.

Scanmaskin has launched two new machines this year, Scan Combiflex 270S and Scan Combiflex 180 EG.

Scan Combiflex 270S is developed for fast and efficient evening out of floor surfaces. It is built to be economic with easy maintenace. The machine is mainly developed for renovation jobs as well as evening out of surfaces.

The other novelity is the Scan Combiflex 180 EG which is developed for removal of different kinds of coating, glue, expoy and paint in coners,along edges and it other confined spaces.

Easy manouevering with remote controlThe floor grinder ScanCom-biflex 700RC, from Scan-maskin, has been very well received by the market since it was introduced a year ago. It is optimal for large surfaces as it is quite fast a n d its short length in combination with the remote control makes it effcient also in confined spaces.

The very durable and sturdy design make it a perfect alternativ for remval of all types of coatings

like epoxi, glue and other types of coatings.It is also developed for polishing of concrete

floors, terrazzo and natural stone due to that the speed can be set and varied both on the

diamond discs and the driving wheels. Even though Scan-

Combiflex 700RC is a big machine one person

can load and tranposrt it. It is equipped with with a battery

when electric connections is not available. Another faily new machine is the

ScanCombiflex 500i which we also have presented in PDi before. It is developed for

grinding of medum and large surfaces. It is equipped with a strong ABB 4kW motor.

ScanCombiflex is a 3-phase machine of 400V, 16A able to remove most types

types of floor pollutions and coatings. It is also useful, as the SC 700RC, to polish concrete, terrazzo and natural stone floors.

Other machines in the Scanmaskin range are ScanCombiflex 650 and ScanComboflex 45 wich is available with and without speed control.

Med ScanCombiflex 45 kommer ni åt att slipa

Two new grinders from Scanmaskin

alla typer av ytor. Små som större rum på kontor, skolor, sjukhus och privatbostäder.

ScanCombiflex 45 behöver bara 220V och 10 amper för att ni skall kunna slipa bort limrester, färg, lack och till och med tunnare beläggningar ifrån golvytan.

Worth mentioning is also that Scanmasin has a patented system for switching diamond tools called Snap On. With Snap On works on all Scanmaskin products and makes the change of diamonds very quick and easy. Up to only one minute according to Scanmaskin themselves.

Scanmaskin is also offering a wide range of dust extractors for use with their grinders.

www.scanmaskin.se

An Aquajet HVD hydrodemolition robot was recently employed to remove the surface concrete of the Motala Ström dam wall at Norrköping, south of Stockholm in Sweden, prior to its resurfacing.

Initially renovated in 1991, the 140m long and 8m high dam has had to be strengthened. The hydrodemolition was carried out by ISS Industriservice AB for main contractor DAB, employing their Aquajet HVD robot fitted with the new patented Intelligent Sensing Control, which has no sensors or electric cables. An on-board computer, which can be programmed by the

Conjet AB, a specialist in the design and manu-facture of remotely operated high-pressure water jetting hydrodemolition machines, is expanding its headquarters manufacturing facilities at Haninge, 20km south of Sweden’s capital Stockholm. Conjet has committed investment capital of EUR 1M for the building of these new facilities, which is in direct response to the continuing and growing worldwide demand for its products

Swedish dam gets a facelift

operator, automatically controls and manipulates the pre-set movement of the water jet nozzle and the tracks or vertical hoist. The Aqua Cutter will optimize settings and apply the minimum force to the material, removing only the damaged concrete. Good concrete is untouched and the reinforcement steel is left clean.

Around 45m3 of concrete was stripped away to the rebar to an average depth of 50mm by the high-pressure water jet system. The HVD removed an average of 0.9m3 of concrete an hour, with the high pressure power pack PP480 operating at a pressure of 800 bar, connected

to the robot with a 100 m long hose. The pump’s maximum pressure was 1000 bar with a maximum water flow of approximately 200 litres per minute.

“In addition to its speed, another important advantage of the hydrodemolition process is the elimination of micro cracks in the remaining concrete,” said ISS hydrodemolition specialist Jörgen Boström. “Where there are cracks, there is air, and with air in the structure there’s always the possibility of movement when temperatures change. Another advantage over traditional demolition methods is that the water jets will get right behind the rebar and remove the concrete. You also have a completely clean and dust-free surface to work on when bonding the new concrete, which is not the case with jackham-mer removal.”

There is no vibration to the surface using the HVD robot, which also allows controlled and selective removal, minimising the waste of good concrete. It does not damage the rebars and

Conjet invests Euro 1 million in major expansion

and services, ensuring that Conjet AB stays at the forefront of the world’s hydrodemolition equipment industry.

Conjet is extending its equipment assembly building to cope with the increasing business. The new extension will more than double the assembly area and houses a much larger parts stock holding section. “The new 1000m2 exten-sion, which we started in March and expect to

extensive range of remotely operated computer controlled hydrodemolition equipment, includ-ing a range of Robots and Jetframes together with tailor made hydrodemolition units, which can connect to Conjet Powerpacks or other high pressure water pumps. The company is currently working on several developments to further extend the product range.

www.conjet.com

be complete by October 2008, is needed to cater for the increasing demand worldwide for our hydrodemolition equipment. The extra space will enable us to boost our capacity and considerably reduce our assembly times with the same number of employees and fulfil the needs of the future,” says Conjet AB President Carl Strömdahl.

Conjet currently offers the world’s most

The expansion will more than double the assembly area and is in direct response to the continuing and growing worldwide demand for its hydrodemolition services and products, such as the latest Conjet 364 Robot.

Conjet is investing EUR 1M extending its headquarters manufacturing facilities, which will boost capacity and reduce assembly times.

causes no additional structure damage.“The HVD is the most comprehensive in the

programme and can operate either horizontally, vertically or upwards to a height of 6m free standing, as standard. When operating vertically above 6m on the 8m high dam the tower of the robot was secured to the wall,” says Aquajet Systems Sales and Marketing Manager Jan-Åke Petersson.

The demand and popularity of hydro-demolition is growing worldwide. “In Sweden and other Scandinavian countries, no other

form of demolition is employed in the repair of structural concrete such as bridges. It is also now being specified in various German states,” says Petersson. “In addition, a new EU Standard is expected shortly and we believe it will push hydrodemolition even further forward.”

www.aquajet.se22 PDi • Issue 4 - 2008 • Oct - NOv

A new power pack for hydrodemolition applications offers significant noise reductions and fuel savings.

Hydrodemolition equipment manufacturer Aquajet Systems AB has introduced a new power pack that can be used for scari-fying to deep concrete removal. The Ecosilence Power Pack’s noise levels are similar to those of a normal conversation.

At 66.5dB, the noise from the new power pack represents a dramatic improvement in the sound levels. In contrast, con-ventional power packs create higher noise levels of between 78dB and 82dB, depending on the manufacturer and the type of application. These levels, which can be compared to the noise from traffic or a motorcycle, can be a considerable problem when carrying out urban projects close to residential and office areas.

The Ecosilence Power Pack also achieves a substantial reduction in fuel consumption over conventional designs, to just 70 l/hr when producing 189 l/min at 1000 bar at 73% of full power, saving an estimated EUR35,000 a year in typical operation. Traditional power packs use between 105 l/hr and 120 l/hr of fuel.

The power pack’s purpose-built steel enclosure features two hydraulically operated hatches for the engine compartment, enabling the operator to vent any excess hot air between operations. Ecosilence uses an advanced heat exchange system in place of traditional cooling and its exhaust silencer also incorporates new criteria, with every aspect rigorously considered.

The choice of a Volvo Penta marine diesel engine was an important aspect of the development. The engine had to combine power and durability while meeting all of Aquajet’s requirements of flexibility, quality and performance. A key factor was its very high torque range from 1100 rpm up to 1800 rpm. This type of marine engine is particularly suited for the application.

The high-pressure water output is from a 700hp plunger pump with an output of 189l/min of water at 1000 bar. Water flow and pressure can be tailored to suit the application in hand. A flow of 181l/min at 500 bar uses just 40 l/hr of fuel. The Ecosilence can be used to provide up to 261l/min at 1000 bar utilising only 85% engine power.

Aquajet has also included features to offer flexibility in transportation and maintenance of the 12.8t Ecosilence Power Pack. The 2.8m high by 7m long unit can be delivered either with a roll-off frame for transportation by truck, or can be

Aquajet’s new quiet solution for hydro-demolition

truck mounted with ISO container corners. The Power Pack also includes workshop space, to accommodate a workbench, spare parts and accessories.

www.aquajet.se


FRD, the world’s first manufacturer of hydraulic breakers, has launched the FRD XPerience Line of breakers on to the European market. A new shock-absorption system minimises transfer of vibrations to the base machine, considerably reducing loads for the user. Thanks to a new guiding system in the casing and rubber gaskets in the bores, an extra noise reduction of 6 dB(A) has been achieved. The 7 models in the new FRD XP-Line weigh from 1.3 t for the F19XP up to 6.5t for the F100XP and are designed for excavators of 12 to 100 t. The breakers, which are also suitable for underwater work, are fitted with a piston lift adjustment, which adjusts the number of strokes in accordance with the specification of the base machine. Like its earlier models, the FRD XPerience-

BREAKING

STORIESFurukawa launches new FRD-XPerience Line

Line has an idle-blow prevention sys-tem. If the breaker is not in the correct working position, the breaker will not start at full power. This relieves the chisel and rod pins, promising longer

With sales of more than 10,000 small breakers in the 50 to 550 kg class last year, Atlas Copco SB breakers are the worldwide number one choice for use with excavators of under 15t. Three years ago, the company launched the first of the new generation of solid body breakers based on a new manufacturing method and new body design. Atlas Copco is now launching the mid-range model, the SB 302, for excava-tors of up to 9t.

“One of the most important features in the new design of our 300 kg breaker is the floating bushing which makes service and maintenance really easy,” says product line manager Thord Wikström. “The new SB 302 brings many advantages to the operator such as higher impact rate thanks to its higher ef-ficiency. Compared with previous models, the new body design generates lower vibrations

Atlas Copco’s new SB 302and less noise to meet the high expectations of our customers.”

The new SB 302 is as tough and reliable as the other breakers in the SB range. “A solid body breaker is machined from a single block of metal. This method provides a number of benefits, such as no side or head bolts and a unique resistance to bending forces and opera-tor abuse. Another advantage is fewer parts and less maintenance,” adds Wikström.

The slim design of the SB 302 makes positioning easy. The compact dimensions also facilitate working in confined applications such as indoor demolition work, along house walls and in narrow trenching. The SB 302 offers the highest performance and breaking power in its class thanks to a new hydraulic system that delivers higher efficiency and improved energy recovery.

www.atlascopco.com

On the hydraulic

breaking equipment

horizon there is

always something

new. Besides three

new models launched

recently on the market

this feature also give

examples of breakers

in heavy production.

F 22XP breaker in action.life. The front chisel guidance sleeve can be changed from the outside, without the need of removing the breaker from the casing.www.frd.eu


Demolition & Sorting Grabs

Polyp Grabs

Pulverisers

Shears

Multi-Quick Processors

Shortly available:

AVAILABLE FOR EXCAVATORSFROM 3 TILL 9 TON

A Spanish contractor has purchased a new Sandvik Rammer BR7013 hydraulic hammer to increase the company’s productivity in the hard rock of the Pyrenean foothills. In the region of Alto Aragon, where Spain is separated from its French neighbours by the Pyrenees, it is here, amid the hard, mountainous rock, that contractor Excavaciones Hermanos Otin Piedrafita plies its trade and where the company is putting to work its new Sandvik BR7013 hydraulic hammer. Supplied by Spanish importer Angel A Santamaria via local dealer Macarsan, the 7 t BR7013 is the largest, most powerful hydraulic hammer in the Sandvik Rammer range.

Excavaciones Hermanos Otin Piedrafita was founded in 1998 now with more than 30 years construction and demolition experience. The company has expanded quickly and has handled many prestigious local contracts, including the construction of Jaca’s first underground car park, the town’s new ice skating ring, and new waste water and solid waste treatment plants. The company has also been instrumental in the extension of ski resorts in the nearby towns of Formigal and Candanchu. Key to the company’s

Bobcat has launched the new HB1380 hydraulic breaker, as a direct replacement for the previous B1400 model and completes the company’s HB range of silenced hydraulic breakers for use on the company’s compact loaders and mini and midi excavators. The HB1380 has an operating weight of 385 kg, a CIMA energy rating of 700 J and can be mounted on a wide range of Bobcat® carriers from the 442 midi excavator, S220, S250 and S300 skid-steer loaders and T250 and T300 compact tracked loaders to the A300 all wheel steer loader. To maximise efficiency with these Bobcat carriers the HB1380 has been designed to work with flow rates from 65-120 l/min. The HB1380 has an impact force of 1152 J and has a blow rate of 780-1030 b/min for work on soft ground and a blow rate of 900-1230 b/min when working on hard ground. The HB1380 operates at a pressure of 125 bar and the automatic pressure regulator ensures the HB1380 breaker delivers a constant energy per blow The HB1380 has the same features as the other models in the HB range. These include versatile mounting allowing use on both Bobcat compact loaders and excavators, silencing as standard, less moving parts for easy and minimal maintenance and an automatic pressure-regulator that ensures the breaker works at its optimum operating pressure on all approved carriers.

As well as fewer moving parts, there are no tie

New breaker from Bobcat

rods, which enables the breaker to be dismantled without the need for special tooling. It retains the cylindrical frame of the 80 Series range and is equipped as standard with a special shield to protect hoses and fittings from being damaged.

The HB1380 breaker also incorporates a soundproofing system and a patented treated steel ring ‘clip’ mechanism, which retains the bushing of the tool and protects the greasing system. This ring is easily removed with a multi-purpose tool supplied with the breaker, to release the sliding bushing and the tool.

www.bobcat.com

Sandvik moves mountainsdevelopment has been its willingness to meet the needs of its customers for ever greater levels of productivity. “Our customers are constantly seek-ing safer, faster and more productive solutions to meet their application needs,” says Excavaciones Hermanos Otin Piedrafita director Tirso Otin. “That is why we have purchased the Sandvik BR7013 hydraulic hammer together with a new Komatsu PC600-8 carrier.”

The Sandvik Rammer BR7013, formerly know as the Rammer G 130, is designed for use with carriers in the 60 to 100 t. Equipped with a chisel tool, the 7 t hammer develops an impact energy of 15,000 Joules, and is supplied with the Rammer CITY sound suppression system as standard, reducing noise emissions to just 85 dB(A) at 30 m distance. It is also piped for the Sandvik Rammer dust suppression package. For reduced wear on both the hammer and the carrier, vibration dampening is improved and tool diameters are increased. The use of a dust-proof housing, dust-proof tool retaining pin locking system and the optional Ramlube automatic lubrication system also help reduce wear and extend working life.

www.sandvik.com

With the MB 1500 Atlas Copco completes its range of medium-size hydraulic breakers that requires practically no maintenance. The breaker operates without a high-pressure ac-cumulator, substantially reducing the number of moving components. The StartSelect, allowing the start-up and shutdown behaviour of the breaker to be adapted to the specific application

Technical data of the MB 1500:Carrier class, t 17-29

Service weight, kg 1500

Oil flow, l/min 120-155

Operating pressure, bar 160-180

Number of percussions, min 330-640

Stroke change-over AutoControl

Start-up mode StartSelect

Working tool dia., mm 135

Useful length of tool, mm 630

Atlas Copco’s new medium-size hydraulic breaker

characteristics, and the AutoControl, ensuring maximum percussion power under all operating conditions, have been included.

The MB 1500 features a single-blow energy of 3000 Joule. Its robust and sturdy design turns the breaker into a universally applicable tool for demolition, trenching or quarrying jobs. It joins the medium-size range

of Atlas Copco hydraulic breakers and is the appropriate supplement for the MB 1200 and MB 1700. “Power, reliability and a low main-tenance expenditure were the benchmarks for the designers who developed the MB 1500. A product has evolved which is distinguished by its versatile application, its slim design and its extremely high efficiency,” says product line manager medium and heavy Breakers Torsten Treger.

www.atlascopco.com


Demolition & Sorting Grabs

Polyp Grabs

Pulverisers

Shears

Multi-Quick Processors

Shortly available:

AVAILABLE FOR EXCAVATORSFROM 3 TILL 9 TON

An 80m by 80 m by 14 m deep foundation pit was exca-vated. This initially required the conventional removal by excavators of 16,000m3 of earth followed by 75,000 m3 of sandstone. This had a compressive strength of 85t/m2 and was removed with the help of the hydraulic breakers.

For this project the company rented an Atlas Copco HB 3000 from Madisa Rental, Tampico, together with an HB 2500. Both units belong to the heavy series of hydraulic breakers and were attached to Cat 330 excavators.

“The HB 3000 manages about 35m3 /h, the HB

The old Plaza Isauro Alfaro Otero in Ciudad Madero, Tamaulipas, Mexico is being re-developed. An un-derground shopping centre with two car park levels, four movie cinemas and an open air theatre above ground will be built. Hydraulic breakers from Atlas Copco are helping the contractor Constructora Villa de Aguayo to carry out the excavation work for the project.

Atlas Copco hydraulic breakers in a shopping centre

project in Mexico

2500 some 22m3/h,” says Constructora Villa de Aguayo site manager Javier Argaez. “We are extremely satisfied with the performance of these hydraulic breakers.” The Caterpillar excavators and the Atlas Copco hydraulic breakers are a perfect match and Atlas Copco Mexicana is giving the assistance needed.

The whole project has to be completed in December 2008. More than 26,000 m2 on four different levels will then have a completely new look with parking for 318 vehicles in two underground parking levels.

www.atlascopco.com


Got Your YELLOBARZ?

CUTTING CONCRETE?YOU NEED A BETTER HANDLE

www.yellobarz.com

REDUCED VIBRATION

ELECTRICALLYINSULATED

Rememeber that you always can download each issue of PDi Magazine as a PDF file on www.PDWorld.com, often long before you have the hard copy in your hand. Internet travels much faster then the Post.

See Us at SAIE 2008

The exhibition SAIE in Bologna has through the years proved to be an amaz-ing show. Maybe not that international as Samoter in Verona claim to be. But if you want to meet the Ital-ian suppliers of demolition and recycling equipment it is SAIE you should visit. The show has a very nice at-mosphere and attracts the local audience from Italy in the north to the south.

More then 40 years with SAIE

Organised over 40 yearsEven though SAIE is maybe considered less international most of the large international brands are represented at the show each year. But in terms of demolition and recycling equipment Italy is one of the strongest nations if counting numbers of manufacturers and at SAIE most of them exhibit. For PDi the SAIE show is very important when it comes to collect information about new products.

But Italy as many oth-er countries these days are facing serious economic problems, which also is reflected at this year’s show. The fact that also Samoter was organised this year doesn’t make the number of exhibi-tors bigger at SAIE.

But still SAIE this year returns to the spotlight with im-portant innovations,

including an area totally dedicated to sustainable construction. Organized by

BolognaFiere for over 40 years SAIE has been presenting the public with the best in technological innovations and

15-18 October is again time for the well-known exhibition SAIE in Bologna, Italy. As usual large show despite a drastic downturn for the construction industry in Italy.


Exhibitors SAIE 2008Agres-Putzmeister Mortelm Area 48 Stand C/94

Airmatic Pad. 35 Stand A/25 – B/26

Alitrak Area 48 Stand G/46

Ammann-Yanmar Pad. 36 Stand C/4

Amog Area 48 Stand A/83

Anmopyc Pad. 36 Stand E/2

Aquajet Pad. 35 Stand C/36

Autec Radiocomandi Indu. Area 48 Stand C/24

Avant Tecno Italia Area 48 Stand C/87

BBG Baugeräte Pad. 30 Stand B/17

Berner Pad. 33 Stand G/39

Bertoli SRL Area 48 Stand G/45 – H/44

Black Cat Blades Pad. 36 Stand A/10

Bobcat Area 48 Stand A/83

Breaker Area 48 Stand A/59

C.M.C. Area 48 Stand A/83

Cams Area 47 Stand C/76

Cams Macchine Pad. 36 Stand D/9

Ceer Pad. 35 Stand A/31 – B/32

Cervetti Ricambi Pad. 36 Stand A/18

Comer Pad. 33 Stand D/16 – E/31

Conjet Area 48 Stand G/57 – H/56

Corimag Pad. 36 Stand D/7

Cormidi Pad. 36 Stand C/73

Cosmec Center Area 44 Stand D/10

CSF Pad. 36 Stand C/1

Doa Pad. 30 Stand B/23 – C/10

Edilgrappa Area 49 Stand A/28

Eurobenne Pad. 36 Stand D/111 – E/110

Eurocomach – Sampierana Pad. 36 Stand E/5 – F/10

Eurodem Pad. 35 Stand D/79 – E/80

Extec Screens + Crushers Area 48 Stand B/39

Fast Verdini Area 48 Stand A/82 – A/96

Fiori Area 45 Stand D/24

Frank Co. Area 48 Stand A/10

Furukawa Pad. 30 Stand B/1

G. F. Gordini Pad. 36 Stand B/26

construction culture. It is a meeting point for all operators in the production cycle to discuss and examine projects, technologies, and systems created under the aegis of in-novation.

New pavilion SAIEnergiaThe shining star of BolognaFiere and SAIE INTEGRATED SYSTEMS, SAIE 2008 – entitled “Building the future” – presents itself to the construction sector with an extensive exhibition array including halls specializing in strategic sectors. There is LaterSaie, the hall exclusively dedicated to bricklaying innovation and construction technology, Saie Precast Technologies, focusing specifically on pre-fabrication machinery and technology, SaieBit which, continues to host service companies as well as those producing computer systems for construction and design, SaieLegno dedicated to wood construction, structures and components, and finally this year’s new addition, SAIEnergia.

SAIEnergia, the hall for renewable energy and low-consumption technology for sustainable construction, is this year’s novelty. SAIEnergia will be located in the new pavilions 14 and 15, thus bringing the topics of renewable energy and energy efficiency to the forefront of the largest trade fair in the construction industry.

To close the circle of the “path to efficiency”, there are several conferences on the agenda: at the Palazzo Congressi the opening conference will be the Observatory of construc-tion regulations and energy savings, with the presentation of Cresme-Legambiente’s report, organized by BolognaFiere

(Sala Italia, October 15th) and Energy efficiency in existing buildings from historic town centres to the suburbs, pro-moted by BolognaFiere and Assorestauro. Also scheduled are the conferences SAIEnergia, Energy in Architecture, (Sala Forum, pavilion 14, October 16th) and the photovoltaic market organized by Assosolare and the training project Energy efficiency in construction. Standards, incentives and technologies organized by Edilio in cooperation with Il Sole 24 Ore (15 -16 October).

After its success at SAIE 2007 the exhibition New Materials Space will return this year, furnished by Mate-rial ConneXion and focusing on materials and innovative technologies linked to the topic of energy and sustainable construction. Also returning this year will be Selezione Novità SAIE 2008, which will gather the most significant innovations on display at Saie and compile them in the Guide to SAIE 2008 innovations.

SAIE numbersThe numbers from last year’s edition are an excellent start-ing point for 2008, which will be counting on the two new pavilions 14 and 15 located in a new, split-level structure, as well as a multi-floor parking structure with 2,500 covered parking spaces:

• 260,000 m2 of exhibition surface, of which 180,000 is covered and 80,000 is uncovered • 1,750 exhibitors, of which 350 are from outside Italy• 178,250 visitors, of which 7,530 are foreign• 4 separate visitor entrances (Costituzione, Nord, Michelino and Aldo Moro).

www.bolognafiere.it32 PDi • Issue 4 - 2008 • Oct - NOv

Gasparin Impianti Area 45 Stand D/52

Goller Karlheinz Area 47 Stand B/81

Good Rock Pad. 30 Stand B/1

Gori Mario Area 48 Stand A/68

Guidetti Area 48 Stand D/76

Hammelmann Area 48 Stand G/57 – H/56

Hydra Pad. 36 Stand F/17

Area 49 Stand A/71

Italdem Pad. 36 Stand

B/135 – C/130

Italtractor Pad. 35 Stand D/27 – E/28

Kaeser Compressori Area 48 Stand A/49

Komplet Italia Area 48 Stand C/39

Kubota Pad. 36 Stand C/76

Mantovanibenne Pad. 36 Stand B/10

Meccanica Breganzese Pad. 36 Stand D/73

Messersi Pad. 36 Stand D/12

MFL Area 47 Stand B/81

Midis Pad. 35 Stand C/36

Minelle Area 44 Stand E/18

Mollo Area 49 Stand A/38

MTS Escavatrice Aspiratrice Area 48 Stand G/57 – H/56

Nonex Security Demolition Pad. 35 Stand C/60

Officine Meccaniche di P. Area 48 Stand D/19 – E/14

Officine Piccini Area 48 Stand A/9

Osa dei F.lli Sallustio Pad. 30 Stand A/6

Palazzani Pad. 36 Stand B/79

Area 44 Stand A/64

Pressoil Pad. 36 Stand E/53

PTC Italiana Pad. 35 Stand B/43

Pulifici Handling Systems Pad. 26 Stand B/257

R.M.T. Pad. 35 Stand C/63

Rammit Pad. 30 Stand A/5 – B/2

Rimac Pad. 36 Stand F/30

RM Pad. 36 Stand A/10

Roald Area 48 Stand G/57 – H/56

Rossi Trade Pad. 36 Stand D/105

Rotair Pad. 36 Stand D/1

Area 48 Stand C/47

Rozzi Area 44 Stand D/10

RSP Area 48 Stand C/67

Rubi – Germans Boada Pad. 33 Stand A/41

S.P.T. s.r.l. Pad. 35 Stand E/35

Sclaverano – SG Pad. 35 Stand A/25 – B/26

Sime – Techedil Pad. 35 Stand C/62

Simex Pad. 36 Stand C/33

Solga Diamant Pad. 33 Stand A/26 – B/23

Stanley Hydraulic Tools Pad. 30 Stand B/17

Sunward Europe Pad. 36 Stand D/15 – E/10

Terex Area 48 Stand F/98

Thomas Equipment Inc. Area 45 Stand D/10

Trevi Benne Pad. 36 Stand A/97

Turbosol Produzione Pad. 26 Stand A/194

U. Emme Pad. 36 Stand A/101

Universal Trading Pad. 36 Stand A/129

URI Pad. 30 Stand B/17

VD Pad. 35 Stand D/64

Vebs – Group Area 48 Stand B/88

Venpa Pad. 36 Stand C/77 – D/84

VF Venieri Pad. 36 Stand A/9

Wacker Neuson Pad. 36 Stand E/58

Zamo Pad. 36 Stand D/8

Key to the successful demolition is five Haulotte HA 16 PX access platforms, which are used by operators

using oxy-acetylene cutting equipment to provide access to the 16m high ship ly-

ing on its side. The ship has also sunk about 3m into the sand and is 300 m from the shore and can only be accessed at low tide. This means all the equipment has to be driven

out and back one or twice each day accord-

ing to the tide t ime t a -

ble.

possible,” explains Peter Cordwell. “The Haulotte machines, with their articulating booms and telescopic extension allow the operator to reach a large area without having to travel. And, although working on sand, they have also proved extremely stable, even when used to their maximum height.”

As the demolition works progress, the articulating boom allows each platform to reach into the ship.

The 7t Haulotte HA 16 PX has a maximum working height of 16m and a maximum outreach of 9.1m. Maximum travel speed is 5.5 km/h. Four-wheel drive and steer allows the platform to cope with the variable ground conditions and with a gradeability of 50%, even severe gradients are no problem. A load limiter in the basket prevents the operator from over-reaching. The zero tail swing design allows the platforms to work closely up against the ship’s hull.

PGC started the demolition in April 2008 and is on target to completely remove all traces of the ship by October 2008. Working under the watchful eye of the Coast Guards, who constantly monitor activities, PGC is pleased with progress.

“By the time we have finished, and scoured the beach with metal detectors to locate the smallest scraps of metal,

there will be nothing to show there was ever a ship on the beach,” says Peter Cordwell.

Advanced marine demolition with Haulotte

The UK based demoli-tion contractor, PGC Demolition, is well advanced on its largest ever demo-lition project cutting up and removal of The Riverdance, a 6,000 t roll-on/roll-off ferry that was beached during severe storms earlier in 2008 on the Lancashire coast, near to Blackpool.

Struggle with tide

“The tide comes in very quickly, but we need to spend as much time working as possible, so speed of travel and reliability are critical,” says PGC Demolition managing director Peter Cordwell. “We cannot risk machines being trapped. There is also a steep ramp providing access to the beach, so all machines have to have good gradeability. The Haulotte platforms meet these criteria and have proven their reliability. They are doing everything we expected without any problems. This is a harsh environment and tough on men and machine. ”

Platform capacity was another critical consideration. Apart from the operator, each platform needs to carry

sufficient oxygen and acetylene cylinders to allow for continuous working in the available tidal window. In addition, each platform has to have fire extinguishes. These are essential as the inside of the ship is lined with bitumen, as there is the constant risk of fire. “We have an improvised water tender, with pumps and hoses, on standby at all times as the risk of fire is extreme,” says Peter Cordwell.

Precision Working EssentialBeing able to precisely manipulate the plat-form smoothly allows the operators to place the basket at the most convenient position close to the ship’s hull to make it as easy as possible for slicing through the steel plate, which can be up to 24 mm thick. The steel hull is being progressively cut into 1 - 2 t. pieces before being lowered onto an articu-lated dump truck by a heavy-duty tracked excavator. “In specifying access platforms, we looked for versatility. We wanted to minimise travel of the platforms as much as


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PROMOVE HYDRAULIC HAMMERS

Easy regulation of the working conditions:

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a sophisticated system of internal shock absorbers completely isolate the gun from the external casing.

If life was a DVD player, Ed Dempsey’s finger would always be on the “fast-forward” button. This is a man who has raced dragsters, stock cars, and motorboats, and experimented with various types of conventional and alternative vehicles to find the best combination of speed, performance, and endurance. In 1999, Dempsey’s “White Lightning” set the current world land speed record for electric vehicles weighing more than 1,000 kilograms, clocking a blistering 245.524 mph on the famed Bonneville Salt Flats in Utah.

First with high cycle in concrete cuttingVeterans of the construction industry know Dempsey for different kind of speed; his pioneering work and the application of high-cycle , or high-fre-q u e n c y, electrical power for concrete cutting machines in the early 1960s. Taking advantage of high-revving 400 Hz motors’ smaller size and greater power, Dempsey developed a complete high-cycle concrete cut-ting system for his nationwide Concrete Coring Company chain, which he owned until 1986.

Over the years, hydraulic systems overshadowed high-cycle equipment due to the latter’s cost and limited parts availability. But Dempsey’s faith in the technology never did not waver, nor did his instinct for tinkering.

Thanks in part to tech-n o l o g i c a l advance-

ments that make 400 Hz equipment more compatible with more conventional electric sources, high-cycle sawing and drilling equipment is enjoying a revival among the world’s machine manufacturers. Not surprisingly, Dempsey is on the cutting edge of high-cycle research and development through his Santa Ana, California based venture, 400 Hertz Engineering.

Dempsey says that 400 Hz concrete cutting systems are ideal for an industry that, like him, craves speed, performance, and reliability.

Along with providing more power to cut faster and deeper with less wear on diamond blades and motors, “high-cycle systems are smaller, lighter and versatile than hydraulics,” says Dempsey. “You can work cleanly a n d efficiently with a highly mobile power

system that also pow-ers other equipment. Compare that with the heavy, oily hoses of hydraulic systems that have to be used close to their power source, and can run only one machine at a time.”

Innovative iterationsDempsey’s interest in perfecting the con-

crete cutting process dates back to 1958, when he left college temporarily to sell diamond tools and other equipment for his then-room mate’s father. Three years later, he launched

Concrete Coring Company and began working for contrac-tors across Southern California.

As demand for his services increased, Dempsey and his classmate and partner at the time, Ken Barnes of Concrete Wall Sawing in San Leandro, California, looked for ways to improve the efficiency of his conven-tional 120-volt electric handsaws while also reducing the

wear. He pieced together a rack and transport system that would allow the saw to be bolted to the wall, helping ease the strain on the operator. All that was needed was a more efficient power source.

Dempsey’s first attempt was compressed air that provided the needed power, but proved too noisy and messy, not to mention unexpectedly expensive because of the large air compressor required, and clean up of oil on the work surface. “We got a lot of big bills from owners who had to paint walls marred by oil from the air motor exhaust,” says Dempsey. “We also had to have union operators on hand to start and stop the compressor.”

Experiments with direct-current motors and hydraulics fell short of Dempsey’s expectations as well. Then,

while visiting a local military surplus store, he found a 7.5 hp 400 Hz motor that had been used to turn

a radar dish. Dempsey was already familiar with the

The Circuit RiderIt is hard to imagine

that aircraft can have

anything to do with

concrete cutting. But

that is the truth and Ed

Dempsey knows why.

PDi can tell the story.

PDi’s US Editor Jim

Parsons reports.


potency of 400 Hz motors, and their ability to run approxi-mately seven times faster than the more commonplace 60 Hz motor, allowing them to be smaller and lighter. “The military and commercial aircraft industry had been using high-cycle power for many years, and it’s still their standard today,” says Dempsey. “I adapted the motor to a wall saw and hooked it up to a Crosley-powered 400HZ generator, and it worked well with small and large blades up to 30 inches in diameter.”

Through further experi -ments with the high-cycle system, Dempsey’s cutting business was able to provide customers with faster, deeper cuts hundreds of feet from the power source. Tests with larger high-cycle generators and motors led to improvements in the saws and gearboxes; distribution boxes to run multiple units; and, ultimately, his patented high-cycle cutting system with a near-infinite range of uses.

The rest, as the old saying goes, would have been history had a fire not destroyed Dempsey’s high-cycle testing and production lab in 1991. The loss of develop-ment momentum compounded a longstanding limitation with 400 Hz motors and generators—cost. Because of their use in military and aerospace applications, the U.S. government requires component producers to meet stringent specification and validation requirements.

As a result, cutting equipment manufacturers turned to more affordable sources such as hydraulics and conventional electricity. But Dempsey was hardly deterred, remaining watchful for an opportunity to make high-cycle cutting both practical and cost competitive.

The answer came through the evolution of inverter technology that can convert standard 50 and 60 Hz DC power into virtually any other form of electric power. As components shrank in both size and cost, Dempsey was eventually able to craft relatively small, 13kg, 60 Hz to 400 Hz inverter boxes, as well as motors capable of provid-ing 10 times the power of a 60 Hz motor of the same size and weight.

Little by little, high-cycle technology regained its prom-ise as a practical and, perhaps more importantly, affordable option for concrete cutting manufacturers.

Picking up the paceNow, assisted by 10 employees and numerous subcontrac-tors, Dempsey is sharing his experience and application knowledge with manufacturing partners interested in taking high-cycle equipment to the next level. “We’re a prototype and engineering company,” says Dempsey of 400 Hertz

The Circuit RiderEngineering. “We design, build, and test different types of tools in different applications and conditions.”

Along with selling 400 Hz equipment via 400 Hertz Engineering’s website (www.400hertz.net), Dempsey is working with Diamond B on a line of handsaws, core drills, self-propelled flat saws, and high-cycle components. Other manufacturers in the US and overseas are also incorporating 400 Hz equipment into their sawing and drilling product

lines. Floor grinding and polish-ing equipment looms as another potential new frontier for 400 Hz power.

Still, Dempsey recognizes that cutting into hydraulic power’s dominance will take time. He must both introduce high-cycle to those unfamiliar with the technology, and overcome old misperceptions. “There’s some resistance among mechanics who have maintained only hydrau-lic equipment,” says Dempsey. “They’re so not used to 400 Hz, so they’re cautious about having to work with something new.”

To help fund his high-cycle research, Dempsey has returned to his diamond tool roots by operating Value Diamond Tool Company, which supplies blades

to professional masonry and concrete cutting contractors in the US. He marvels at the strides industrial diamonds have made during his half-century in the business. “They cost about $10 to $12 per carat when I started using them in 1958,” he says. “Now, they cost about 25 cents per carat, but provide much better quality due to the ability to precisely size and shape them.”

Value Diamond also continues another Dempsey tradition of rigorous performance testing to ensure consistent speed and durability. While the Asian-manufactured blades are priced lower than those of US based producers, Dempsey understands the reasoning behind the Diamond Sawblade Manufacturers Coalition’s anti-dumping suit. “Anti-dumping tariffs will result in higher prices for imported blades,” he says. “But it remains to be seen how much effect they have on the overall market.”

Regardless of where the diamond tools come from, Dempsey is confident that more of them will be used with high-cycle drills and saws in the coming years. “As labour becomes more and more expensive the use of 400HZ power will increase because of the speed and flexibility of a lightweight high-cycle system and the ability of operators to setup and break down equipment quickly,” says Dempsey.

www.400hertz.netIssue 4 - 2008 • Oct - NOv • PDi 37

High CycleEquipmentThe technique for use in the concrete sawing and drilling industry is thought to have been introduced in the USA. The idea quickly spread to Europe and were used to some extent. But the technique was not that refined and was at that time hard to crack the domination of hydraulic concrete sawing and drilling machines. During the second part of the 1990s high cycle wall saws were more popular. Most of the manufactur-ers started development programmes, including high cycle techniques. For instance when the Swiss manufacturer Demco entered the market as a supplier of concrete cutting machinery they directly started off with high cycle equipment launching their wall saw Piranha.

Reluctance at startAt Bauma 2001 hydraulic equipment was dominant, but the following years it started to change and at Bauma 2004 almost all suppliers introduced high cycle equipment. But still the technique had not completely matured, which often resulted in technical failure in the field. Few contractors were ready to invest in this type of equipment and stayed with the traditional hydraulic saws. But high cycle equipment had come to stay for many different reasons. Hydraulic systems are heavy, compli-cated and not environmentally friendly. By comparison high cycle equipment is light, easy to set up and often just as or more powerful as hydraulic equipment.

Now this new technique is completely dominant and is used in all types of concrete sawing and drilling. Many believe that even the hydraulic technique will be forbidden in the future due to environmental reason like oil leakage, heavy lifts or dif-ficult working positions with heavy equipment.

Most manufacturers of concrete sawing and drilling equip-ment have high cycle equipment in their product programme. These include Braun, Cedima, Demco, EDT Eurodima, Hilti, Husqvarna, Shibuya, Tractive and Tyrolit-Hydrostress to name the most dominant.


Using high frequency

or high cycle 400 V

electric motors is not

new, not even for the

concrete sawing and

drilling industry. And

in the aircraft industry

these types of motors

have been used for

a long time and it is

from this industry that

the idea came to start

to use them also in

cutting concrete.

BraunAustrian manufacturer Braun Maschinenfabrik has a range of eight different high frequency wall saws where the Titan and the Titan Power are the newest ones launched at Bauma 2007. Titan Power has an output of 22 kW, weighs 41 kg with motor and saw head and has a cutting depth up to 930mm. Braun has also one full high cycle wire saw named SSP12 HF with an output of 18 kW. It has a cutting area up to 8 m2 without shortening the wire.

www.braun.at

CedimaThe German manufacturer Cedima has one high frequency wall saw named WS-450 EE. It has an output of 27 kW and weighs 58.5 kg, including motor, saw head and cable. Cedima also has the HF wire saw CSA-100 E with a 27 kW output and 8 m storage roll.

www.cedima.comDemco

Swiss manufacturer Demco was founded in 1993 and launched their Piranha to continue with their current largest HF Vector saw. Vector has an output of 20kW and has a maximum cutting depth of 720mm. The saw head and the motor weighs 41 kg. A little more then a year ago Demco launched their lightweight Co-bra Gamma HF and the Cobra Short models, which weighs just 24.9 kg and has an output of maximum 10 kW. The maximum cutting depth is 340mm. Demco also have high frequency wire saws and circular hole wire saws as well as HF drilling systems. For more information on Demco see article on pages 56-58.

www.demco.atEDT Eurodima

EDT Eurodima was early to launch their first high frequency models on the European market. Now the wall saw range of HF equipment contains two HF wall saws named sb200 typhoon and sb320 tornado. The sb200 typhoon has an output of 20

High CycleEquipment

kW, a cutting depth up to 520mm and motor and saw head weighing 33 kg. The bigger sb320 tornado saw has built a strong foothold in the US distributed by Sanders Saws owned by Multiquip. This HF saw has an output of 32 kW and has a maximum cutting depth of 920mm. Motor and saw head weighs 35.8 kg. EDT Eurodima also have two high frequency wire saws WB6P and WB12P. The smaller one can store up to 8 m of wire and the larger up to 12 m. EDT Eurodima also have their braxx control, which is a power pack and control systems that can feed all of the Eurodima products with high frequency power, including the drill motors cdm60b and cdm110b.

www.eurodima.com

HiltiThe Liechtenstein manufacturer Hilti has a wide range of high frequency equipment and has had a strong focus on this product segment since they launched their HF range. The HF range of wall saws includes two models, the DS-TS5-SE and the DS-TS20-E. The DS-TS5-SE has an output of 5kW and a cutting depth of 300mm. The weight of motor and saw head together is about 28 kg. The larger DS-TS20-E has an output of 15kW and weighs 37 kg. It can cut up to 530mm deep. Hilti’s HF wire saw DS-WS10-E is a very compact wire saw

with a wire storage capacity of 7.3 m. It has an output of 10 kW and can be run both electrically and hydraulically. Hilti is in a strong position with its compact and high efficiency diamond drilling systems like DD350 or DD500.

www.hilti.com

Husqvarna Construction Products

Husqvarna Construction Products came in late with high frequency systems, but has analysed this segment

well, judging by their new Husqvarna WS 440 HF wall saw. The maximum output is 13 kW and the maximum cutting depth

is 530mm. The weight of the sawing unit is 24.5 kg.

www.husqvarnacp.com

TractiveSwedish manufacturer Tractive has seven different models of wall saws where four are high frequency powered. The smallest model is Pentruder 6-8HF with an output of 15kW. The unit with saw head and motor weighs only 26.3 kg and has a cutting depth of 350mm. The second HF saw is Pentruder 6-12, which can be run with either a 15 or 18 kW motor. It has a cutting depth of 520mm and weighs 37.2 kg with motor and saw head. The third model is the Pentruder 6-12 Lean and is a simpler single speed version instead of two

speeds of the 6-12. 6-12 Lean has similar features to the 6-12 and runs on the same tracks. The output is 15 kW and the weight all together with motor and saw head is 29.5 kg. The biggest HF saw in the Pentruder range is the Pentruder 8-20 HF. This Magnum model is run by a specially designed 22kW motor and developed for the most demanding jobs. It has a 4-speed gearbox and a cutting depth of 915mm. It can run on both 15 and 22 kW motors and the weight with the 22kW motor, including saw head is 40.5 kg, which is very light for such a powerful saw. With the smaller motor alternative the weight drops by 3 kg. To power the four HF wall saws Tractive offer three different power packs, Pentpak 418 for 15 and 18 kW HF motors, Pentpak 422 for 15, 18 and 22 kW HF motors and Penpak 427 for 15, 18, 22 and 27 kW HF motors. Also there is the Pentruder 3P8, a compact, easy to use and efficient wire saw with many advantages. It can store 12 m of wire and

The Frida WS75 high frequency wall saw from Dr bender.

Above EDT Eurodima’ssb320 Tornado high frequency wall saw and belowThe Titan from Braun.

Hilti’s smart and compact HF drill systems is available in two sizes DD 350 and DD 500.

Above Tyrolit’s heavy duty HF wall saw WX15 and the control box.


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an additional 8 m with a pulley. It can be run both with high cycle power and hydraulically.

www.tractive.se

TyrolitTyrolit, with its daughter company Hydrostress, has two high cycle systems in its range. The smallest one, wall saw system EX was launched in 2000 and is an 11 kW saw equipped with a 2-speed motor. It is a small and compact saw easy to use and set up. It has a cutting depth of 320mm and weighs 26 kg includ-ing gearbox, drive motor and saw head. The second system is built for more heavy applications and is called WX-15 with 15 kW output. This saw had the official launch at Bauma 2007. This is a sturdy model with a cutting depth up to 420mm. It is easy to set up and work with, but is rather heavy and weighs 70 kg, including saw head, 2-speed motor and blade drive motor. WX-15 can be converted to the flexible and lightweight (60 kg) wire saw SK-B WX with wire stor-age of 5.5 m. The benefits with this combined system

is that the contractor uses the same control box and motor for wire and wall sawing.

www.tyrolit.com

Specialists in the high cycle technologyBesides these suppliers a few companies have also specialised in developing the electric drive systems, including high frequency motors. One of them, and considered to be the person that implemented the high cycle technology in concrete sawing and drilling, is Ed Dempsey in USA with the company 400 Hertz Engineering (see separate article on pages 36-37). The second is Dr Bender in Germany that has over 30 different models of high frequency drive units. Also the other German manufacturer WEKA offers high frequency equipment, including a complete wall saw system named FRIDA WS 75. The wall saw is avail-able in two options, either as a 3-phase, 6 kW, version, named FRIDA WS 75 or as a high frequency version on 11 kW called FRIDA WS 75 H. The high cycle model has a cutting depth of 320mm and the complete unit with saw head and motor weighs 32.5 kg.

The most versatile range of high frequency equipment is probably provided by the manufacturer Tractive. Here the new HF wire saw 3P8.

Above the new HF wall saw from Husq-varna who came in rather late in the HF market but aims to build an extensive range of high frequency equipment.

Tractive’s new HF wire saw 3P8 in action.

The 8 acre site had to be completely soft stripped and all asbestos removed by end of April 2008. PGC were then given 12 weeks to demolish all the buildings scheduled for demolition, break out all slabs, hard standing and foundations and crush all arisings. PGC specified CASE excavators for the project. “The work is varied and demanding. We had to have machines that experience has shown are up to the various tasks, are able to deliver high production and are reliable. Time is not a luxury we have on this project,” says PGC managing director of Peter Cordwell.

Difficult taskTypical of most demolition projects, the Trafford Bakery has several challenges. The works include internal demolition of a two storey office block, tear down of a 16,000 m2 storage shed with 7.62 m high roof and associated buildings, removal of a significant amount of notifiable asbestos, breaking out concrete slabs and processing on site up to 10,000 m3 of material to 6f2 grade for use on the site development. There is a small area of asphalt covering, which will be stripped and taken off-site to prevent contamination of the crushed material.

Being surrounded by industrial units and a car auction site meant dust and noise had to be kept to a minimum. There is also the added complication of high-voltage underground electrical cables, which had to be left live for much of the programme. To minimise dust and noise levels to adjacent property, the outer exterior walls will be left in place as long as possible.

Flexibility and VersatilityPGC needed to put together a fleet of machines that could do the structural demolition, pick and select material for recycling, breakout the concrete and asphalt areas and load skips for trans-fer off site as well as trucks to carry the material to the crushing

area in the middle of the site.All material handling equip-

ment on site is CASE. For the most demanding work, PGC is using a top of the range, CASE CX800 in demolition configuration, which includes tilting cab and cab protec-tion cages.

The CX800 is being used with LaBounty shear, Flynns ripper tooth and Flynns pulverizer. The other CASE machines include a CX460 with pulverizer, CX460 with LaBounty 2000 shear, CX210 with VTN Selecta grab, CX290B with VTN shear, CX290B with 4 finger grapple, CX290B concrete muncher, Case CX225SR in high-

Nine Case Excavators for Major DemolitionThe UK demolition contractor, PGC, based in Rochdale, is using a fleet of nine CASE excavators in different configurations for demolition of the former Northern Foods Bakery at Trafford Park, Manchester.

reach configuration with 16 m arm and VTN Selecta grab and a CX135SR working with 3-finger grab, dyanset magnet and Indeco breaker.

Because the CASE excavators can be quickly reconfigured for different handling requirements, they can be used to achieve maximum productivity. All metal is being recovered, which is cut into manageable pieces using the shears on the excavators.

The material is also carefully selected and loaded into skips. Once the structural demolition work has been completed, work will start on breaking out the concrete slab, which is ap-proximately 300 mm thick. There are also pad foundations where the many structural columns were positioned. These are approximately 1.2 m deep and heavily reinforced.

Proven Demolition ProfessionalsPGC has a long history of undertaking difficult demolition projects and have proven their professionalism many times. Apart from the demolition work, PGC ensure all necessary licences are obtained from the local authorities, the HSE is notified and the company produces site-specific method statements, risk as-sessments and COSHH assessments before starting any work. The company has over 100 employees and 90% have CSCS or CPCS certification.

“Our success in the demolition sector is all due to having a loyal and highly skilled work force with access to the most suit-able equipment for the work, ” says Peter Cordwell. “The two go hand in hand to ensure that we are able to complete works on schedule, within budget and to do it safely.”

www.case.com


Nine Case Excavators for Major Demolition


A new demolition waste processing centre has been opened near the town of Joensuu in the province of Northern Carelia, East Finland. The company accepts all sorts of demolition waste, such as bricks, asphalt, concrete and wood. They process the materials and turn them into new products for resale.

Three brothers, Aki, Mika and Jukka Kart-tunen, own the company, East Finland’s Crushing Centre. The brothers continue the work of their father who formed an earthmoving company in the 1960s but now the sons have a new busi-ness concept to develop. In addition to running their business, they also educate local businesses and community organisations about the benefits

A new demolition wastecentre in East of Finland

The new Allu SCH screener crusher can handle various kinds of demolition waste effectively like bricks in this case.

of recycling demolition waste. For the bulk of their crushing and screen-

ing needs they use two Allu screener crushers. The first one was an SMH and when it proved satisfactory, they later purchased an Allu SMH screener crusher.

“The machines have functioned perfectly for us. One of the main benefits is that they are so versatile. Different applications can be met and the change from one application to another can be done quickly. A further benefit is that the machines are capable of handling so many different materials, also wet ones,” says Aki Karttunen.

www.allu.net

As oil prices have reached unprecedented levels in recent months, the fuel economy benefits of the Terex® Pegson X400S series have become a major purchase driver for those seeking the best value mobile jaw crusher. The Terex® Pegson X400S series are high performance, primary jaw crushing plants that are easy to set up, versatile and engineered for quarrying, demolition and mining applications that require high produc-tion capacities.

Direct Drive system lower fuel consumption

“The Terex® Pegson Direct Drive system in the X400S series has shown fuel cost to be lower than competitors time and again,” says Paul Donnelly, general manager of Blue Group, London. “With current high fuel prices, customers are very savvy to any fuel efficiency.”

Terex Pegson reduces fuel costs by up to 33%

In trials comparing the Terex® Pegson X400S with equivalent competitor machines, the X400S reduced fuel costs by up to 33%, and hydraulic oil costs by up to 96%. The comparison using July 2008 prices indicates that by using 22 litres/h compared to 33 litres/h of a typical hydrostatically driven jaw crusher, in a single year the Terex® Pegson X400S can save up to £16,500, a financial saving of 33%.

When comparing hydraulic oi l, even bigger savings can be made. The Terex® Pegson X400S needs i ts hydraul ic oi l changed eve r y 2000 hou rs f rom i t s 400 l i t re tank . Typ ica l l y compet i to rs need hydraul ic oi l changed every 250 hours from a 1333 l itre tank. In a typical working year based on July 2008 prices that can save up to £14,764, a potential saving of 96%.

www.terexpegson.com


ISSUE 2 - 2008 APRIL - JUNE PDi

W ZEALAND SURVEY

Meet us at:SAIE 2009 – BOLOGNA (ITALY) PAV. 36 BOOTH B10

ECOMONDO 2009 – RIMINI (ITALY) PAV. C5 BOOTH 168

Passing the Baton

There is a new figurehead at

the UK’s largest drilling and

sawing contractor,

D-Drill, and she has a tough

act to follow as Mark Antho-

ny reports.48 PDi • Issue 4 - 2008 • Oct - NOv

On 5 April 2008, the clatter of drills and saws being made ready and the gentle click-clack of administrative computer terminals at D-Drill’s head office in Coventry in the UK was silenced temporarily, replaced by the sound of champagne corks popping. The company’s long-awaited takeover had just been concluded and, unusually in such circumstances, everyone was to keep their job and even knew the new owner.

However, the lack of redundancies and job losses were not the only unusual aspect of the company’s purchase. For one thing, the new owner is a young, attractive and well-travelled woman, something that remains almost unique in the male-dominated world of drilling and sawing. Furthermore, that woman is Julie White, former round-the-world yachtswoman and the daughter of the founder of D-Drill who in turn is one of the most respected and influential people in the drilling and sawing business both in his native UK and around the world.

That Was ThenFormer electrician Peter White formed the company in 1967 and, like all good success stories, the beginnings were humble in the extreme. “My old boss, a very good salesman, had won the job to drill the holes for the signs at Birmingham’s famous Bullring landmark. He had hired in the equipment and spent two days without making any impression on the concrete build-ing,” recalls Peter White. “He asked me to visit him on site, said he had to make a phone call and told me to make a start. I quickly taught myself how to operate the equipment and set about drilling the required holes. He never did come back from that phone call. He just left me to it.”

Despite building up a loyal customer base across the Mid-lands, that company ultimately went bankrupt freeing Peter White to form the company that is now D-Drill. But even this process was not without its obstacles. “We had originally intended to call the company DiaDrill and we had created some letter-headed paper bearing that name when we discovered that the name had been registered by a supplier company,” says Peter White. “We couldn’t afford to reprint the paper so we simply blocked out the I and A in the word Dia with something that looked like a hyphen. Forty years on, we’re still known as D-Drill.”

During those four decades, D-Drill has grown from re-gional player to a national force. Indeed, the company is now recognised as the UK market leader, operating the country’s largest drilling and sawing equipment fleet from 10 profit centre locations.

Not content with building a nationally-recognised brand, White has dedicated a large part of his working life to the bet-terment of the industry from which he has derived a living. Having travelled to the US for the first of what was to become a lifelong connection with the Concrete Sawing and Drilling Association (CSDA), he returned to the UK and immediately set about forming the Drilling and Sawing Association (DSA), the organisation of which he is now chairman, based largely upon the rules and regulations of the American Association. “I was very aware at the time that we were perceived as little more than labourers when, in fact, there is both an art and a science to drilling and sawing work,” explains Peter White. “No two applications are the same and, unlike recognised tradesmen like bricklayers and carpenters, drillers and sawers have to be

Passing the Batonflexible enough to deal with hugely differing applications and materials. To give the industry the recognition it deserved, I knew we needed a trade association.”

Not content with recognition, Peter White and the as-sociation set standards by which the industry is still governed. Training and operator safety were of paramount importance, a fact that was underlined by the creation of a card scheme to confirm the qualification of accredited card holders. That scheme was ultimately taken up and replaced by the UK’s CSCS card system.

This Is NowPeter White says that, following the takeover by his daughter, it is

After forty years with the concrete sawing and drilling industry Peter White is now passing the baton to his daugther Julie White. But Peter is absolutely not leaving the industry just the daily work in the office. Now he will spend his time working more closely the various branch associa-tions he is commited to.


his intention to spend more time concentrating upon his associa-tion commitments. This is timely, as he is scheduled to become President of the International Association of Concrete Drillers and Sawers (IACDS) later this year. But while Peter White plans

a semi-retirement of administrative meet-ings and occasional visits to the D-Drill headquarters, Julie White is concentrating upon consolidating D-Drill’s place as the undisputed UK market leader. And while Peter White’s face is lined with over forty years’ front-line experience, Julie’s eyes sparkle with dynamism and enthusiasm for the challenge ahead.

It would be easy to dismiss Julie White’s ascension as little more than nepotism. But that is wrong. She has been an active part of the business since she turned 18 and while her love of scuba diving and yachting took her away from D-Drill for almost a decade, she was never far from the drilling business. At the age of 21, Julie decided the time had come to see the world so armed with nothing

more than a backpack and a CSDA members’ directory, she headed for the US. “The night before I left, my father gave me the CSDA directory and said that if ever I got into trouble, I should call one of the companies mentioned in it,” she recalls. “I did that numerous times as I travelled across the US and I made lifelong friends with many of them. In addition, I got to see literally dozens of drilling and sawing operations across the US, something I replicated when I achieved my ambition to become a scuba diving instructor on the Great Barrier Reef. There might be more experienced driller and sawing company managing directors in the UK, but I doubt that any have seen as many worldwide operations as I have.”

Julie White’s background also helps dismiss any feelings that she is somehow unqualified. A former round-the-world yachtswoman with a formidable leadership reputation, Julie White has previously started her own, allied company with great success. “We were approached by a salesman selling a triple-headed grinding machine. My father rightly said that it didn’t fit within the D-Drill operation, but I saw that it had real potential,” says Julie White. “Backed by the support of the D-Drill equipment and maintenance operation, I started a company called Superfloor based around that machine together with a ride-on unit for removing floor tiles. In the end, the company became so successful that it was absorbed into D-Drill under a new manager, allowing me to focus upon the planned takeover.”

Even the fact that she chose to buy rather than merely inherit her father’s company speaks volumes for her determina-tion. “Peter is such a figurehead and is so closely associated with the company that I knew I would have to buy the company to take 100% control,” says Julie White. “Peter has a vast amount of knowledge and experience, and we will still be able to call upon that, but I was determined to take the company in my own direction.”

One of her first tasks has been to replace an ageing com-puter administration system that was custom-built for the company more than 15 years ago. She has also recruited an operations manager from the automotive industry, to help her put a fresh perspective on the well-established business. Julie White is well on her way to re-crafting an established and respected brand in her own image.

There is little doubt that she is following in her father’s footsteps. But while her steps might be in high heels, the strides are no smaller, no less determined.

D-Drill has a strong reputation in the UK and their personnel and service cars are a common sight.


ing, trying to improve their technique and waiting feverishly for the final in January 2009

in Austria. The European Championship of the TYROLIT Cut-

ting Pro Competition is the highlight of the Open House Fair 2009 and takes place at the Messehalle in Innsbruck on 22 January.

Two More Competitions Decided

Since its baptism of fire in Spain at the end of March this year, the TYROLIT Cut-

ting Pro Competition was held in Switzerland, in the United Kingdom and in Italy. After four thrilling competitions the athlete’s fighting spirit and passion for cutting and drilling concrete is unbroken; winners and runners-up are exercis-The winners in France.


Two More Competitions DecidedNational competition in Spain

As it did in Spain, Switzerland, England and Italy, the Cut-ting Pro Competition held in France 5-6 of September also attracted many enthusiastic spectators. This time the professionals competed against each other at the TYROLIT Open House in Sarreguemines, France. The contest was convincingly won by M. Vanderbecque (Diam CSD), who achieved a new record time in wall sawing. In January 2009 Vanderbecque and the second-placed M. Girard will join the national winners of the other six competitions in the contest for the European Championships in Austria.

In spite of heavy rain some 150 customers attended the two-day TYROLIT Open House fair, which was a get-together for customers from all over France. The fair put the focus on wall sawing, floor sawing and core drilling and introduced the new remote controlled PPH25RR*** power pack.

New record time in FranceThe French Cutting Pro Competition, however, was the centre of attention and the spectators were able to experience the disciplines of wall sawing, core drilling and hand sawing live in a professional competitive environment. The French athletes did remarkably well in wall sawing and also set a new record time. M. Vanderbecque (Diam CSD) was the fastest (02:17.69). Second-placed M. Girard (FDB) and third-placed M. Tirman (Diam Nord) convinced with their overall skills in the three exercises. The spectators were in high spirits and celebrated their champions accordingly.

An overview of the winnersA new record time has been posted in wall sawing. France’s M. Vanderbecque (Diam CSD) clocked the fastest time of 02:17.69, improving on the previous record held by

Above the Scandinavian winners.


Above the Scandinavian contestants and below Tyrolit team from Austria and Scandinavia that has done a great job to pull

through this competition not only in Scandinavia but the whole of Europe.

Switzerland’s Urs Birrer 02:35.21. In core drilling Switzerland is out in front: Sergio Tedde (Editaglio) leads with 02:35.00. In the hand sawing discipline the UK’s James Evans (Britannia Cutting Services) leads with 00:31.57.

National competition for Scandinavia

On the 18th of September the Scandinavian final took place at the Tyrolit premises in Gothenburg, Sweden after several qualification championships. Despite a clear sky and warm weather not so many clients showed up as in France, but it was still quite crowded in the large tent were the competitions took place. 18 companies competed in total, nine from Sweden, five from Denmark and four from Norway. It was a great atmosphere in the tent were everybody gave their absolutely everything to achieve the best time.

New records in hand sawingIn terms of hand sawing quite a lot should happen with the top score and it was in ge-neral quite even between the three compet-ing nations with very high quality among the contestants. And after competing in the three disciplines wall sawing, drilling and hand sawing first place winner was Kim Guldbæk from Danish Nordjysk Diamantboring og Skær A/S followed by second place winner Conny Svanborg from Swedish firm Gustav R Johansson

AB. And third place was taken by Svein Roger Bye from Norway and the company Moby AS. These three will attend the final

in Austria in January 2009.In wall sawing the athletes did not set any new

records. Best time was taken by Conny Svanberg with the time 02.35.04, a quite good time close to the record. Second best time, 02:41.47, was taken by Antti Niiranen from Swedish com-pany ATN Betongsågning AB and the third best time,02:53.92, had Kaj Hansen from Danish company MT Höjgaard A/S.

In terms of drilling the winner Kim Guld-bæak set a strong time of 2:55.97 followed by Conny Svanborg’s time of 3:05.47. Third place was taken by Jörgen Madsen from Dan-ish company Simonsen & Weis A/S with the time 03:09.37.

After the first two disciplines it was quite hard to estimate the outcome of this competi-tion. But on hand sawing Kim Guldbæak showed what a concrete cutting athlete he is with the new record of 0:24.32. Second best time had Cris Lidström with 0:29.30 and third best time went to Svein Roger Bye with the time 0:29.67. All three times in hand sawing were better then the previous record held by UK’s James Evans.

Kim Guldbæk won the whole Scandi-navian competition with 70 points, Conny Svanborg on second place had 65 points and third place winner Svein Roger Bye collected all together 43 points.

Recently the national Cutting Pro Competitions in Germany took place and PDi’s editor Mikael Karlsson attended. We will report on that competition in the next edition of PDi.

www.cuttingprocompetition.com


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See Us at SAIE 2008

See Us at SAIE 2008

Swiss State-of-the-Art EngineeringAmong the world’s

several manufactures

of concrete sawing

and drilling equipment

there is almost just as

much fine and quali-

fied engineering skills.

A good example of

this is the Swiss com-

pany Demco Technic

AG in the small village

of Seon not far from

Zurich.

To some extent Demco and its personnel distances itself from many others because of the genuine interest to the cause that is found in 100% privately owned firms. Demco was founded in 1988 by Reinhard Keller and celebrates its 20th anniversary this year. Despite 20 years of business the pioneering and state-of-the-art engineering is still evident.

Started in the family garage

Everything started in Reinhard’s and his wife Martha’s garage, which became the first workshop and office. Before starting his own company Reinhard worked for Diamantbohr AG for several years. “The first years were quite difficult. There was no lack of ideas and energy, but less with money so it was hard to invest and move forward at the speed that I wanted. In the beginning my wife Martha was sceptical to the idea to start Demco,” says Reinhard Keller.

During the first years Demco had many strings to their bow. At this time remotely controlled demolition robots started to become more common in renovation jobs. Reinhard Keller came up with the idea to develop a hydraulic crusher for these machines and invented the DC 350 Alligator concrete crusher that is still

available. After visiting a

construction show i n G o t h e n b u r g R e i n h a r d c a m e in contact with Gearmec equip-

ment that at the time was owned by Anders Johnsen. Keller liked the products and became distributor of Geamec in Switzerland. Besides sell-ing Gearmec he also repaired and serviced Hydrostress equipment. But still business was not good enough and when Hilti bought Gearmec and the distributorship in Switzerland it was almost the end for Demco.

Turning point

came with PiranhaIt was at this point Reinhard Keller realized that there was just two ways

to go. Close down or start developing his own products. He chose the second route and started to develop a light-weight high frequency wall saw named Piranha with 4.5 kW output. This was possibly one of the first high cycle saws in Europe and was launched in 1995. Dr Bender in Germany supplied the motors.

When Piranha was introduced Keller started to work on a new bigger saw and two years later the 11 kW Cobra high frequency saw were introduced. The electric motors also came from Dr Bender. Dr Bender considered high frequency technology as a possible way of powering con-

To the left Beat Keller demonstrating the high frequency circular hole wire saw from Demco Technic.

Reinhard Keller (left) showing some fine engineering from Demco. The small picture below shows the Demco automatic

feeding system Subito for the Demco drilling systems.


Swiss State-of-the-Art Engineering

crete cutting equipment, but initially he was more interested in high cycle for drilling applications. It was through Demco it was tested in wall sawing applications.

The first Cobra was remodelled and in 2002 the Cobra short model was launched. One year later, in 2003, Keller also developed a larger high cycle wall saw named Vector. Vec-tor has a 20 kW output and is very popular among the users. As recent as this summer a new version of Cobra was released and was given the name Cobra gamma.

Demco also develops drilling systems and has cur-rently four different drill systems in various sizes called Piccolo, Ubs 1297, Sumo and DLargo, as well as the automatic drill feed system Subito. In the end of October a new drillings system called Nino will be released. All the Demco drilling systems can be equipped with high frequency drill motors.

The Cobra was released

At the same time as the Cobra wall saw was launched in 1997 other manufacturers, like Hilti and Tyrolit,

Beat Keller demonstrating the high frequency wall saw Cobra gamma. Small picture to the right below shows a type of gyro for easy positioning of the drill system at different angles.

From right to left Reinhard Keller, Marta Keller and Matt Widmer.

Above a happy team of celebraters.Left the the Sumo drilling system and below the Largo drilling system.


started to show interest in high frequency equipment and the same year Hilti launched its DS TS5.

With more products in the portfolio, business started to improve for Demco to such and extent that the workshop and office was too small. When a local factory in Seon was sold Demco bought a section of the plant measuring some 1,200 m2. The facilities were renovated and the whole Dem-co production moved in to the new facilities in 2000. The new plant was ten times bigger than the old factory. “The new plant gave us quite a kick and we felt very motivated and ready to focus on an even bigger market territory and increase our market shares,” says Reinhard Keller.

20th anniversary celebrations

Today Demco Technic AG has 13 employees, including Reinhard’s wife Martha and their son Beat, who is Product Manager. Matt Widmer joined as Sales and Marketing Man-ager and an important link to Demco’s foreign clients.

Almost 100% of the production is sold to Europe and Russia. Strong markets with local representation, besides Switzerland, are Germany, Austria, The Netherlands, France, Belgium, Sweden, Norway, Denmark, Finland, Italy, Spain,

Portugal, Russia and Slovenia.To celebrate its 20th anniver-

sary Demco organised a special event between the 25-27 September. Foreign distributors, clients and the press were invited to celebrate the anniversary and attend product presentations. The first day included a welcoming speech by Reinhard Keller followed by demonstrations of each of the Demco products in the company’s demonstration area.

Demco is, like similar engi-neering companies, very humble in previewing products before they are ready to be launched. “Everything

needs to be tested thoroughly first and we want to be 100% sure that everything works properly,” says Matt Widmer.

New developments

Although not yet officially launched there are some new products on the horizon from Demco. A new drill stand is about to be introduced which has a separate gearbox. A special trolley for the Cobra wall saw was also shown mak-ing transportation on the worksite easier. The main news is a new high frequency wall saw due in the near future. This product will be placed in size between the Cobra and the Vector.

Besides its own products Demco is also distributor of the Finnish remotely controlled demolition robot Finmac F16 in Switzerland. Demco has experience of selling de-molition robots, as the company was distributor for the

Beat Keller demonstrating the smallest Demco drilling system, Nino.

The Demco premises in Seon.

What is on the computer screen is to be released in the near future.

The full range om Demco drilling system.

The Demco wire saw posing.

Demco is distributor of the Finmac remote controlled de-molition robot in Switzerland. The robot is equipped with the Demco hydraulic crusher.

Time for fun.

Advanced brick cutting with bike by “Heger”.58 PDi • Issue 4 - 2008 • Oct - NOv

DMX demolition robot during the 1980s and 1990s as well as being the service depot for Brokk demolition robots during a period.

www.demco.ch

technology for our gang saw blades in the natural stone industry, where re-quirements call for efficient, long-lasting and powerful tools for sawing in hard

materials.”T h e

D i a g r i p segments also have larger dia-

Since the beginning of 2008, Husqvarna Construction Products has launched several diamond tools with Diagrip technology. This is a new concept with optimum distribu-tion and better retention of diamonds that significantly increases cutting speed and life of the tools. It ensures smooth sawing and cutting, especially in heavily reinforced concrete.

“A new concept not a new product”

“We prefer to say that this is a new concept instead of a totally new pro-duct,” says Husqvarna Diamond Tools Construction vice president Michel Hubermont. “For many years we have used a very similar

DiagripThe New Concept

Diagrip is a new diamond tool

technology from Huqvarna

Construction Products that has

been developed to significantly

increase cutting speed and life

of the tools. The Diagrip segments has bigger diamonds.

monds. This increases the thickness of the shavings and makes for gentler and faster sawing compared to traditional segments. The special treatment of the diamonds also means they remain longer in the segments. The tool bites into the material more positively, making sawing more comfortable in hard and heavily reinforced concrete.

The segments are also designed so that fragments and chips are easily expelled from the tool, which ensures cutting speed and tool life. This feature makes Diagrip even more manageable and convenient. “With all these features tools with Diagrip can give a 20-30% increase

Husqvarna Construction Products’ headquarter for diamond tools is situated in Ath, Belgium, with some 250 employees working with research and deve-lopment, testing, some production and worldwide distribution.

Husqvarna’s experts on diagrip tool, from left: Fran-çois Boudlet, Product Manager Drilling and Grinding Diamond Tools, Michel Hubermont, Vice President Diamond Tools and Johan Lauwers, Product Man-

ager Wire.


in cutting speed over conventional tools,” says Michel Hubermont. “We started to apply this technology for our wall saws launched in January this year. The main reason to start with wall saws was that we could conduct all the development and testing ourselves in-house. We then moved on to the floor saws that we are launching now. In September this year we introduced our drilling tools with Diagrip technology.”

In general the Diagrip technology will be applied to Husqvarna’s high-end tools and used on a large range of products, such as diamond blades for wall saws and floor saws, diamond rings, diamond drill bits, and diamond wires.

The testing area in Ath, Belgium.

During spring of 2008 the Italian manufacturer Mantovanibenne launched the new Crusher CR100 for use with 100t excavators. The CR100 follows the Mantovanibenne MS130 launched at the last Bauma and the CR range is ideal for primary demolition. The

Mantovanibenne launches CR100

crusher can be equipped with an integrated hydraulic motor that allows 360° continuous rotation suitable for any type of demolition or 360° free swing.

www.mantovanibenne.com


See Us at SAIE 2008

Representatives for a new asphalt and concrete recycling plant in the US have credited high-performance dust suppression technology as a key element in obtaining the site’s operating permit, allowing the facility to embark on its 5-year mission to crush local demolition waste into aggregate that can be processed and re-sold as clean fill material. Spring Street Recycling, based in West Haven, Connecticut, addresses the issue with several different techniques, employing internal dust control that is integrated into its crushing operation as well as external, high-efficiency dust suppression equipment designed specifically to knock down airborne particles.

Dust Control By Design“The plans for this facility were closely scru-tinized by the regulatory authorities and local citizens,” says Spring Street Recycling owner Lou Gherlone. “We had to satisfy everyone that we had proven technology in place to run a very clean operation that wouldn’t contribute dust to neighboring wetlands or the community.

Dust control critical for concrete and asphalt recycler

Without the latest dust suppression techniques, we would not have been able to do that.”

The Spring Street Recycling operation starts in a Lippman Milwaukee 3062 primary jaw crusher, with a 200 HP electric motor. The unit features integrated dust control to suppress fugitive particles, with a series of spray nozzles mounted in the feed opening to provide internal and external saturation. Even with a capacity of 400-500t/h, the system uses only about 8litres/m of water and contributes no runoff. From there, a 14m conveyor feeds a 2.4m x 6m triple deck screen, with the material then entering a secondary crusher, a Lippman Milwaukee 5165 impactor with 300 HP that also incorporates internal suppression.

Gherlone knew that external control would also be needed for maximum effectiveness, and he researched several technologies. “We needed this facility to be built with the latest dust control technology, so it would meet even the strictest standards and satisfy everyone in the neighboring communities,” says Gherlone. Key to that effort is the Dust Boss DB-60 fully

automatic high pressure misting system. The oscillating ducted fan from Dust Control Tech-nology features 30 brass nozzles developed to atomize droplets to the optimum size for dust suppression of between 50 and 200 microns. With automatic oscillation and a powerful 25 HP motor generating 850m3/min the unit has a 60m throw that can cover an area of 1,950m2. The high-volume design includes an internal booster pump that delivers a pressure of 10bar from a 50mm supply hose.

“We run the Dust Boss whenever we’re loading or crushing,” says Gherlone. “It does a great job knocking down airborne particles, without over-saturating the material. The oscil-lation feature is a big advantage, as it allows us to cover far more area than a stationary design.”

The Case for RecyclingReclaiming concrete and asphalt is more than good environmental practice and makes good business sense. “From every mile of concrete pavement of average thickness, nearly 6,000t


of material can be reclaimed,” adds Gherlone. “That means no landfill and no disposal fees. The resulting aggregate can be used as base material for new roads, footings and founda-tions, or it can be mixed into new asphalt or concrete and 44 states currently use recycled concrete as a road base.”

With asphalt, the motivation to recycle is even stronger. “Asphalt pavement is 100% recyclable,” adds Gherlone. “And research shows that the quality of recycled pavement is as good or better than virgin asphalt, even when recycled a second or third time.”

Recycling asphalt conserves resources such as natural aggregate and petroleum products, helping save taxpayers an estimated $300 million annually and reducing demand on sources of oil. Recycling provides access to billions of gallons of petroleum contained in existing roads and highways, with roughly 4 million miles of pavement in the US holding approximately 270 billion gallons of petroleum reserves.

www.dustboss.com

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Hitachi Targets Demolition SectorEvery year HCM Japan also sells more than150 high reach demolition machines around the world. Mainly demolition adapted excavators ranging in size from 25t to 180t. When it comes to demolition and other special applications like forestry, long reach, waste/scrap handing and recycling, HCM Japan is investing more and more in Europe to get a good share of the European market with its high demands of versatile excavators for demolition.

“Up to 30 for heavy duty demolition”“Today we offer five different 25t to 100t excavators with between 16m and 40m reach for demolition in Europe. And we expect to sell some 25 to 30 of these machines this year, ” says Hitachi Construction Machinery (Europe), Product Sales Representative Special Equipment Mark Burghoorn, who is based in the Netherlands. “They are as much as possible the standard demolition machines designed and built in Japan for the European market for our ZX LC-3 model range, but with what we call a multi-boom-principle where you can easily change between high reach demolition equipment, backhoe equipment and/or a triple-articulated front that we build with the Japanese drawings here at our Special Application Centre in Oosterhout.”

Doubled productionAlso the demolition specified excavators are built with a number of special features, like head guards and front guards to protect the cabin from falling debris, and upper structure guards to prevent metal from getting caught in the crawler.

The most important reason with this manufacturing ar-rangement is to have more flexibility on the European market. Another is the capacity since there is a high demand for demoli-tion equipment also in Japan and elsewhere in the world. The objective is to have machines available when the clients need them with no extra delivery times than normally expected. “We see a large potential on the European demolition market and we expect to double our sales to some 50 units within the next few years. Further we have several Japanese engineers here to study

Japanese Hitachi Con-struction Machinery offers a wide range of construction ma-chinery worldwide. However, the company considers its main product line to be hy-draulic excavators and manufactures many models from mini to medium-sized excava-tors all the way up to 780t ultra-large ma-chines. PDi’s Mikael Karlsson reports.

Below Hitachi Construction Machinery (Europe), Product Sales Representative Special Equipment Mark Burg-hoorn.

At the Special Application Centre in the city of Oosterhout HCME builds the front attachments and many other options for special excavators from Japanese drawings.


Hitachi Targets Demolition Sector

the requirements and specifications for our future demolition machines in the next generation models that will be launched around 2010,” says Mark Burghoorn.

The range of models will be increased with some smaller and middle range machines, and definitely with heavier excava-tors to come up to 55-60m reach and capacity to handle heavier demolition tools.

“Very specialised models more for state-of-the-art developers”

And what about offering specialised long reach excavators for demolition in the future? “There certainly is a business for that as well, but not for us as a large scale manufacturer of construction machinery. This niche we leave to the state-of-the-art developers of demolition equipment that can make a one-off special machine for one kind of client. Like Kocurek for example that often use our excavators as the base machine,” says Mark Burghoorn.

“When it comes to demolition and other special applica-tions like forestry, waste/scrap and recycling, HCM is investing more and more in Europe to get a good share of the European market,” says Mark.

Above Danish demolition contractor NKR with a Hitachi excavator specially fitted for demolition purposes.

Hitachi Construction Machinery (Eu-rope) was established in the Neth-erlands in 1972. Today the company manufactures construction machines for the European markets in Amster-dam and Oosterhout.


Barhaul Ltd, based in Aberfeldy, Perthshire, Scotland, recently took delivery of a Rubble Master RM80 compact crusher. This is vital to the Barhaul fleet, as the company is under contract with the US mining conglomerate MI-SWACO, to process the 50,000 t of Baryte produced annually by the nearby Foss Mine.

Saw it at HillheadBarhaul managing director Patrick Bradley saw the ma-chine at the quarrying equipment show Hillhead 2007 and realised that the one machine could outperform the

Rubble Master a “Rock Master”Barhaul Ltd recently took delivery of a Rubble Master RM80 compact crusher and the results were much greater than expected.

existing jaw crusher, impactor crusher and screen-ing unit. The throughput was even greater than he had anticipated. “With rising diesel costs and increasing maintenance and unreliability of the existing equipment, we had either to replace the existing configuration or find a more effi-cient solution,” says Patrick Bradley. “My only concern was whether the Rubble Master could cope with the density of the material and the volume. It has proved more productive than envisaged, and the mobility of the unit allows us to process the material according to grade, directly into the different bays. With the static machines we had to rehandle from a central crushing area,”

The RM80 has not only proven its capability of handling the material, but the throughput of the machine, and ease of transportation, has enabled Barhaul to include it in their hire fleet for other work, including crushing aggregate, asphalt and building rubble.

The performance of the RM80 also meets the satisfac-tion of the MI-SWACO quality control manager on site who says that the consistent quality of the end material, <25 mm, reduces the time required in the pan mills as part of the final processing. The highly efficient magnetic separator ensures

that all metal contamination is removed.

Bigger output then anticipatedThe RM80 is equipped with an OS80 screen and OS80RFB recirculation unit, which eliminates rehandling of the mate-rial by loader. Barhaul believes they are getting a throughput of 180 t/hour and more than anticipated.

The material, sized to less than 450 mm, is fed into the RM80 with a Volvo L120 loader. The feed hopper has an opening of 860 x 600 mm. The 23 t machine is powered by a Deutz 4 cylinder Tier 3 compliant diesel engine delivering 123 kW at 2,000 rpm.

The Environmental Agency also rated the machine highly for minimal dust and low sound levels. “The Rubble Master RM80 has done everything we expected of it and more,” says Patrick Bradley.

Rubble Master UK sales manager Peter Hunt, says that the interest in the Rubble Master range of compact recyclers is very high throughout the UK, and they are very satisfied with the performance of the RM80 in Scotland.

www.rubblemaster.com


John Hughes, who has been involved in the demolition industry for over 20 years, founded Demolition and Sal-vage in 2000. This privately owned independent specialist contractor offers a range of demolition and associated recycling services to the construction and allied industries throughout the UK. A growing fleet of specialist excava-tors, crushing, screening and materials handling equipment includes the 21 m reach Liebherr R 944 and it is to this powerful machine that Demolition and Salvage has fitted their new MBI attachment.

“Impressed with MBI”“We’ve got a large armoury of attachments from a number of different manufacturers and looked at several suppliers when we were in the market for a new unit,” says John Hughes. “We were particularly impressed with the MBI multisystem unit and we found INMALO very easy to work with. They willingly supplied this MS30 for trial and we were so impressed with its performance that we told INMALO’s John Polak that we wouldn’t be giving it back.”

The MS30 is one of a com-prehensive programme of multi-system attachments from MBI, for which INMALO is the sole UK distributor, and all

UK’s Demolition and Salvage chose MBIThe UK company Demolition and Sal-vage, based in Hilsea, Portsmouth, has taken delivery of a Manto-vanibenne MBI MS30 Multisystem demoli-tion attachment, from UK distributors IN-MALO, for their high-reach Liebherr R 944 excavator. Designed for a range of inter-changeable jaws to suit specific demoli-tion and dismantling tasks, this versatile excavator attachment is currently equipped with a concrete crush-er jawset and is work-ing on a contract to demolish grain silos in Poole, Dorset.

are available with a range of interchangeable jawsets suited to most forms of demolition and dismantling. Operating weights for carrier excavators for MS attachments are from 12 to 75 t, depending on whether they are fitted direct to the main boom or, as in the case of the unit purchased by Demolition and Salvage, fitted to a high-reach machine. The company’s Liebherr R 944 is a 45t class machine and with a long undercarriage and its high-reach configuration, it is ideally suited to the MS30. “We’ve only taken the concrete cracker jaws at the moment, but we will certainly be taking other MS30 jawsets from INMALO when the next application for this attachment requires a different cutting, shearing or crushing capability. That’s one of the great attractions for us of the multi-system concept,” says John Hughes.

The MBI MS range from INMALO offers the demoli-tion and recycling specialist what is effectively a five-in-one attachment. Jawsets can be quickly, easily and safely interchanged on the main body to suit the specific task

and include pulverisers, combi-cut-ters, shears, crushers and plate

shears. MS units feature full 360º hydraulic rota-tion, protected hydraulic cylinders and MBI’s own Powervalve development for the shortest possible cycle times, which also offers high-speed, low pressure and low-speed, high-pressure opera-tion. The MS range can also be factory fitted with quick-hitch or pin on brackets.

www.inmalo.co.uk


WIDECUTSouth Korea has always been known as a land inhabited by very resourceful and hard-working people. One of the most tell-ing examples of Koreans’ dazzling effectiveness can be found in modern history of the country’s capital, Seoul. Fully demolished during the Korean War, which ravaged the peninsula in the early1950s, the city was restored to its former glory in virtually no time. Today traditional Korean houses, “hanoks”, which are scattered in an endless sea of high-rise towers and skyscrapers, only serve to highlight the progress that has been made by a na-tion with so little territory and such a vast population. Koreans have long secured leading positions in some technology-inten-sive industries, including semiconductor production, automo-tive sector and, hardly surprisingly, diamond tools. The Asian country boasts a number of top-notch manufacturers, which supply half the globe with high-quality diamond tools. Best known is Ehwa Diamond and Shinhan Diamond, major companies

that make a wide var ie ty

o f d i a -mond-tipped

products, from blades to drill bit

segments to polish-ing pads. However,

there is a domain where those big players face a

serious risk of being out-classed by a manu-

poised to cut a wide swath through the global market PDi’s Ahn Sung visits

one of Korea’s finest

manufacturers of

diamond wire,

WIDECUT.

facturer, which has preferred to achieve perfect quality with just one item instead of broad diversification. This domain occupies the high-end of the diamond tools spectrum, such as diamond wires and beads and the manufacturer, which has chosen to specialize in this technologically sophisticated product, is WIDECUT.

Strong team and leader with a visionThe history of Hwasung-city based WIDECUT dates back to 1997, when John Han, at the time General Manager of the research and development centre at Ehwa Diamond, decided to leave the company after 13 years service, to pursue his own career. A powerhouse of a man, with remarkable business acu-men, he figured out that the diamond wire industry had bright prospects for years to come and launched his own enterprise focused exclusively on diamond wires. Apart from the lucrative opportunities this business could offer, it was only natural for a man, who actually introduced Korea to the diamond wire technology, to bank on it. In 1994 John Han was awarded a gold medal “Jang Young Sil” by the Korean government and Maeil business newspaper for development of the first diamond wire in Korea. Already an accomplished engineer, John Han is still driven by the determination to create the best-ever diamond wire in the world.

The vigorous leader has since built a tight team of just 14 people, which includes both production and office staff. With production capacity unaffected by the relatively small number of personnel, the Korean company supplies its diamond wires to manufacturers and distributors all over the world. WIDECUT tends to sell its products outside Korea, with 100% of the company’s output being shipped overseas. Currently, monthly output reaches some 5,000m, but the existing facilities allow

for a further scale-up of capacity up to 10,000m/month. The key person in the assembly line is

Shin Dong Won, a diminutive product manager, whose professionalism and

dedication ensures high standards of product quality control are

maintained. Since joining WIDECUT seven years ago, the company has not received a single

complaint about the quality of d i a m o n d b e a d s , w h i c h i s h i s ma in area

In the picture John Han showing his gold medal “JANG YOUNG SIL” awarded by the Ko-rean government and “Maeil business newspaper” for de-velopment of the first diamond wire in Korea in 1994.


WIDECUTpoised to cut a wide swath through the global market of responsibility. All paperwork as well as communications with clients are handled by John Han himself and his two assistants, export sales manager Michelle Lee, and office and quality control manager Joanne Kim, With much importance attached to personal contacts with customers, the founder and managing director of WIDECUT often finds himself torn between his office and the international airport of Incheon, which he calls his second home. Korean WIDECUT proves yet again that it does not take a big office to make it big in business. All it takes is in-house technologies, efficient workload management and commitment of staff.

“ONLY WIRE” but how ample a choice!At the very outset, WIDECUT picked ”Only wire” as its motto so that all customers could have a clear idea of the company’s aspirations. Although WIDECUT produces wires for both construction and stone applications, the construction industry appears to be a more attractive option for the Korean manufacturer, taking 90% of its production. Wires of over 20 different specifications for concrete sawing are available from WIDECUT. These include wire specially designed for underwater cutting, steel structures, and dry sawing. Despite an impressive variety, most customers seem to have opted for the same wires, given that five main specifications account for almost 80% of total production volume.

Being primarily a construction-oriented producer, WIDECUT, however, does not altogether disregard the quar-rying business. The company supplies three types of wire for granite extraction, diamond beads for marble cutting and various kinds of stationary wires, the main one being the endless-type profiling wire.

Keywords: quality, safety and immediacy No matter what the wire type and application, quality is of paramount importance for the Korean wire maker. “We can only compete on the global market if we can supply our customers with products of the best quality,” says John Han. To achieve this goal, WIDECUT has set up a quality control procedure at each production stage, which involves state-of-the-art measuring and testing machinery. Wire saw-ing tests are run just outside the factory using a hydraulic powered wire saw and concrete blocks, containing various amounts of steel reinforcement imported from Japan. This stringent approach seems to be bearing fruit. WIDECUT is proud to announce that last year clients reported no griev-ances about the quality of its products. Safety of wire sawing operation is another major concern for WIDECUT. All its wires are assembled in such a way that guarantees that dia-mond beads never fly off, even if the wire gets disconnected during operation.

As far as wire quality and performances are concerned, the only competition WIDECUT sees on the world market comes from European manufacturers. There are a few details, however, that lend an edge to WIDECUT wires compared to those of its Western counterparts. They include a patented

rubber injection process preventing any possible cracking of the material, an in-house bead sintering technology ensuring uniform consumption of diamond layer during operation, and use of breakage-resistant metal cables. WIDECUT prices, noticeably lower than those of European producers, only further bolster the Korean supplier’s global competi-tiveness.

WIDECUT strongly encourages its clients to send feed-back to the company regarding its wire performances. The wire maker retains samples of every batch of wire it produces for a few years. The practice allows the company to track down the faulty batch and pinpoint the problem, should the customers have any complaints. Immediate feedback may not always be possible with distributors and suppliers, but end users are very welcome to share their opinion with the Korean manufacturer. The company prides itself on its ability to deliver 90% of orders on the day of their arrival. Such a short lead time is made possible by keeping a stock of the main types of wires for urgent shipment and fast-track processing of customer requests, which, if submitted by e-mail or fax, get answered within just half an hour.

Reaching out to new markets WIDECUT presently exports its products to more than 20 countries, with Japan, the EU and the USA accounting for the major share of consumption. As much as John Han cares about those long-established contacts, the chief strategist of WIDECUT is also keen to reach out to a wider market. He believes the countries of the former Eastern bloc, especially Russia, Poland, Bulgaria and Romania, which have lagged behind their Western neighbours, have the potential to become big time consumers of diamond tools. The markets in the states, which emerged as independent in the wake of the USSR’s collapse, Ukraine, Kazakhstan and the Baltic States, are also seen by WIDECUT as promising. Middle East countries, largely the UAE and Saudi Arabia, offer yet further opportunities for expansion. Flush with oil money, they invest heavily in their construction industries, thus cre-ating a promising outlet for WIDECUT tools. On the other side of the globe there is Australia and New Zealand, the countries with a decent number of wire sawing contractors, and the Korean manufacturer aims to make them believe that WIDECUT’s are the “only wire” they can trust.

There is hardly any doubt that it will not take long for a man of John Han’s stamina and astuteness to penetrate these new markets. Proven quality and reliability of WIDECUT products will just make his task easier.

www.widecut21.co.kr

Above from the left to right: Joanne Kim, Shelly Han (Han’s daughter), Michelle Lee, Shin Dong Won and John Han.

A UTM machine for testing physical and mechanical properties of diamond wires.

Hydraulic-powered wire saw used for field test of wires. Below Japan imported concrete blocks, containing various amount of steel reinforcement, for field-testing of diamond wires.


With a 3305 mm lift height and a reach of 792 mm, the vertical-lift-path S330 skid-steer loader will appeal to many customers in construction, demolition, land-scaping, agriculture, horticulture, equipment rental, recycling and general industry.

High-flow attachment and travel functions at same time

The engine output ensures optimum performance of high-flow attachments by providing more hydraulic horsepower. The S330 can operate a high flow attach-ment at the same time as the loader is using its travel and auxiliary hydraulic functions. High-flow attach-ments that can benefit from the higher hydraulic flow include planers, wheel saws, Brushcat™ rotary cutters and snow blowers. There is a wide choice of over 40 attachments for use on the S330.

In common with other Bobcat skid-steer loaders S220, S250 and S300 models, the S330 incorporates an extra high capacity cooling system, which features

New Skid-steer model from BobcatBobcat has extended its range with the launch of the new S330 model. The top of the range S330 weighs 4.2t and is pow-ered by a 62.5 kW (84 hp) Kubota V3800-DI-T-E3 4-cylinder Stage IIIA liquid-cooled diesel engine and offers a rated operating ca-pacity of more than 1.5 t. High break-out forces and two-speed travel, with a maximum speed of 19.1 km/h, enable the S330 to be very produc-tive in every application.

a variable speed SmartFAN™ that rotates at full speed only when required.

The S330 provides unmatched operator comfort and visibility. Operators can easily enter and exit the spacious cab, which features ample leg, foot, arm and headroom. Customers can choose from a range of options, including an enclosed cab with heating and air conditioning.

Automatic engine shutdownThe S330 has automatic engine shutdown triggered by monitoring devices on the hydraulic system to enhance loader uptime. The sensors for the S330’s operating system monitor several machine functions with gauges, LCD, lights and audible alarms, warning the operator of irregular conditions to aid in service troubleshooting. The S330’s transversely mounted engine allows for easy access to routine maintenance items and quick serviceability.

A n optional deluxe instrument panel provides infor-mation on the function of specific attachments by showing the operator which fingertip auxiliary controls to use. The S330 can be equipped with either the Bob-Tach™ attachment mounting system or the optional hydraulic Power Bob-Tach™ system, which fallow quick and easy switching between attachments.

Optional operator convenience features include selectable joystick controls with horsepower and speed management. The horsepower management feature, which comes standard with the SJC option, auto-matically adjusts the loader drive system to maximise pushing and digging power. With speed management, operators can dial in the desired travel speed in small increments from 0 to 11 km/h, while maintaining drive torque and full hydraulic power.

www.bobcat.com72 PDi • Issue 4 - 2008 • Oct - NOv

Still time for 2009 IACDS Diamond Award entriesFor those of you that have not yet sent in your entries to the 2009 IACDS Diamond Award, but would like to contribute still have time up to the 31 October 2008. The Diamond Award is an internationally recognized competition for concrete sawing and drilling industries. This special award for outstanding results in concrete sawing and drilling jobs will be awarded during World of Concrete, 3-6 February, 2009 in Las Vegas. 2009 Diamond Award is sponsored by the various membering asociations in IACDS as well as suppliers like Diamond Products, Hilti, Husqvarna, Hydro Tec, Nestag and Saint Gobain. “Don’t miss out on your chance to win this prestigious award which can bring heightened awareness and international recognition to your company name. Should your entry be successful, and you are chosen as one of the three winners, you will recieve roundtrip air travel and hotel for two persons for three nights for free,” says IACDS Secretary Daniel Trachsel.

The winners and their entries will be presented during a press conference at World of Concrete in Las Vegas, USA on 4 February, 2009. The Diamond Award Entry Form can be downloaded at www.iacds.org/diamondaward.

www.iacds.org

The UK’s 2008 National Federation of Demolition Contractors Convention in Palma, Majorca marks the launch of the Federation’s most ambitious and comprehensive guidance notes to date. Co-authors of the guidance notes Mark Anthony and John Woodward provide a preview of the new publication.

Back in 1991, Allied Forces were embroiled in the Gulf War against Saddam Hussein in Iraq, there was a President Bush in the White House, and in Staines, UK, finishing touches had been made to a set of guidance notes on the deconstruction of tower blocks.

Seventeen years later, Saddam may be gone, but US and UK forces are still in Iraq; there’s another Bush in the White House; and the new edition of the NFDC’s Guidance on the Deconstruction of High Rise Structures has just been completed.

Two Decades of ChangeYet while things seemingly remain unchanged in US politics and international policy, the new set of guidance notes is a markedly different animal. “It is a testament to the original document that it was still in daily use 17 years after it was written,” says co-author of the new edition John Woodward. “But when we looked at it, it really polarised just how

much our industry had changed in the past two de-

cades.”For one thing, the previous document made

regular references to both high-balling and explosive techniques. “Obviously, explosive techniques are still utilised and have become far more specialised over the interceding years and their use is largely restricted to specific applications, so we decided that it would be best to look at those in a separate guidance,” says Woodward. “In addition, while high-balling was a highly productive and efficient demolition method, it has been largely consigned to the industry history books. So we have focused primarily upon floor-by-floor or ‘top-down’ methods this time around.”

The resulting document, produced by an NFDC working committee involving Woodward, NFDC chief executive officer Howard Button, Tilley & Barrett’s Paul Brown and Demolition & Dismantling magazine editor Mark Anthony, is the Federation’s most ambitious and comprehensive set of guidance notes to date.

Safe Working Practices“The process of floor-by-floor deconstruction is a complex one and, as we were determined to define safe working practices and acceptable levels of control for all stages of the process, we knew from the outset that this publication would be a massive undertaking,” says Woodward. “Even the scope of the guidance, which we finally set at structures of 18

m and above, was the source of a great deal of discus-sion because, once again,

the goalposts have moved somewhat since the previous

edition was published.”Woodward cites legislation

like BS6187:2000, Control of Asbestos Regulations 2006

and the Construction (Design & Management) Regulations 2007,

all of which were introduced after the original guidance was published,

and which had to be taken into ac-count in the writing of the new one.

“Legislation is constantly changing, but we cannot just ignore it or offer guidance

that is isolated from current regulations,” adds Woodward. “So the new guidance

makes constant reference to the very latest legislation and offers specific advice

that anyone using the guidance should also produce a method statement and risk as-

sessment and take into account prevailing site, environmental and regulatory conditions.”


Heavily RegulatedIn some ways, the degree to which legislation, planning and control are covered, further highlights the way in which the industry has developed during the past two decades. Before the guidance makes any specific recommendations on demolition and deconstruction methods, the co-authors spent five pages covering subjects, including roles and responsibilities; safety legislation, management procedures; and project planning and notifications. “Today’s demolition contractor must abide by a huge and growing number of rules and regulations before they even set foot onto a site,” says Woodward. “As one of the primary aims of the new guidance was safety, it was vital that we took all of this into account. But it did highlight just how heavily regulated this industry has become.”

Scaffold & ProtectionAnother key element of the new guidance is the sub-ject of scaffolding and protection, a vital consideration in almost all floor-by-floor deconstruction projects. The new publication recommends that all scaffold should be designed by competent and qualified scaffold designers who will provide scaffold draw-ings and calculations. It further recommends that the design incorporates suitable and sufficient ties back to the main structure in accordance with BS5973. “Experience has shown that for demolition scaffold, more scaffold ties than recommended in BS5973 should be provided to ensure that the scaffold will always have sufficient ties as the scaffold is dismantled with the demolition,” saysWoodward.

Daily AssistanceWoodward says that the new guidance will be previewed at the 2008 NFDC Convention in Palma, Majorca with the full launch to NFDC members follow-ing immediately afterwards. “It is two years since the NFDC’s guidance on the use of high reach excavators was introduced. That publication has been distributed across the US and Europe, has been translated into French and has recently been reprinted for the second time,” says Woodward. “Given the universal use of floor-by-floor techniques, we expect a similar level of demand for the new guidance.”

Although the new guidance is likely to achieve international rec-ognition, Wood-ward says that it is aimed primarily at helping NFDC members in their day to day business, and that the publication was pro-duced with the assis-tance of members

Top-Down, Top Guidance

across the UK. “This new set of guidance notes is a perfect example of the NFDC working with and for its members,” says Woodward. “During the research for this guidance, the working committee spoke to members in all five regions of the Federation to gain their expert opinion and input. And the production of the guidance has been partially sponsored by associate members JCB and Sandvik Mining and Construction,” adds Woodward. “The result is a guidance that the Federation can be rightly proud and which will be of daily help to member companies and their employees.”

www.nfdc.co.uk

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