Since 1969 Hofmann Engineering has provided specialist engineering services t o Australia’s industry leaders. Quality Assurance certification by Lloyds complements our total quality culture. Our commitment to continuous quality- improvement touches every aspect of o u r products, services and customer support. KEY CAPABILITIES GEAR MANUFACTURING PRECISION & HEAVY MACHINING HEAT TREATMENT ENGINEERING & MINING EQUIPMENT REPAIRS & MAINTENANCE SPECIALIST TRANSMISSION REPAIRS RESEARCH & DEVELOPMENT SPECIALIST TOOLS & EQUIPMENT PORTABLE MACHINE TOOLS REPLACEMENT PARTS ON-SITE MACHINING DEFENCE PROJECTS METROLOGY SERVICE DESIGN & CONSULTING SERVICES FABRICATION & WELDING FIELD SERVICE A EROSPACE LEADERS IN WORLD CLASS PRECISION ENGINEERING
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
KEY CAPABILITIESGEAR MANUFACTURING
PRECISION & HEAVY MACHINING
HEAT TREATMENT
ENGINEERING & MINING EQUIPMENT
REPAIRS & MAINTENANCE
SPECIALIST TRANSMISSION REPAIRS
RESEARCH & DEVELOPMENT
SPECIALIST TOOLS & EQUIPMENT
PORTABLE MACHINE TOOLS
REPLACEMENT PARTS
ON-SITE MACHINING
DEFENCE PROJECTS
METROLOGY SERVICE
DESIGN & CONSULTING SERVICES
FABRICATION & WELDING
FIELD SERVICE
AEROSPACE
LEADERS IN WORLD CLASS PRECISION ENGINEERING
INTRODUCTION
AUSTRALIAN LEADERSHIP IN WORLD CLASS PRECISION ENGINEERING
25m high machine shop suitable for 200
tonne lifts.
Hofmann Engineering, founded by John and ErichHofmann in 1969 is a successful family owned and runengineering business. The precision and expertise thatHofmann Engineering offers in the manufacturing andrefurbishing of precision mining equipment is soughtfrom companies both locally and internationally.
Stable cash flow management has enabled HofmannEngineering to grow into one of the largest privatelyowned engineering facilities in Australia, employingover 600 people world wide. In 2003 leadership ofHofmann Engineering was passed to the secondgeneration with John’s son Erich J Hofmann nowleading the company in their continued pursuit ofexcellence.
27 GEARBOX REBUILD DIVISION 74 VIBRATING SCREENS29 ONSITE SERVICE 75 DISC VACUUM FILTERS31 KILN SERVICES 77 DEFENCE33 SUGAR MILLS 79 AEROSPACE35 OIL & GAS 81 CUTTING TOOLS37 WIND TURBINE GEARBOXES 83 FOOD PACKAGING39 ENERGY POWER STATIONS 85 PRESS SHOP41 DRAGLINE – REPLACEMENT PARTS (4 pages) 87 WORLD WIDE REPRESENTATIVES & HEAD OFFICE LOCATION45 SHOVEL – REPLACEMENT PARTS
Hofmann Engineering’s Directors. Clockwise from left:
Stephan Kirsch, Erich J Hofmann, Erich F Hofmann, Leighton White
& John Hofmann.
- 3 -
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
HOFMANN BENDIGO
Specialising in:
• Heavy Fabrication• Gearbox Manufacture & Overhaul• Heavy Machining• Heat Treatment• Onsite Services
Hofmann Engineering now boasts three facilities(Bendigo, Melbourne & Newcastle) on the east coastof Australia as well as a facility in Canada, NorthAmerica and Chile & Peru in South America.
HOFMANN NEWCASTLE44 Broadmeadow RoadBROADMEADOW NSW 2292AUSTRALIASpecialising in:• Heavy Engineering to 14m dia.• Gearing to 12 dia.• Gearbox rebuilds, underground
mining, mobile mining equipment & replacement parts .
GEAR
MANUFACTURE
DESIGN AND CONSULTING SERVICES.Analyse and solve your particular gear or gearbox problem using the latest gear design sof tware to either D.I.N., A.G.M.A., B.S. or Australian Gear Standards.• Industrial Gearbox and gear design.• Onsite gear inspection and consultancy • service.• Computer aided draf ting.
TURNINGA range of lathes both conventional and computer (CNC) controlled for turning of gear blanks and shafts to 35,000mm long.• Final grinding of shafts to 8,000mm long.
FABRICATION.Complete w elding and fabrication facilities to 200 tonnes.• Fabricated gearbox casings and gears.• Rebanding w orn gears via welding ring forging • to original hub.• Qualified w elders with accredited welding • procedures.
HORIZONTAL BORING.A range of both conventional and computer controlled (CNC) borers are available to 18,000mm x 5000mm.• Machining of large gearbox housings.
1
68,000 KG DREDGE BUCKET WHEEL DRIVE GEARBOXThis gearbox operates 20m underwater for dredging mineral sands. The technical advancement of incorporating case hardened gearing throughout helped us win the order against some of the world’s leading gearbox manufacturers.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
GEAR HOBBINGManufacture of high accuracy gears and w orm w heels.• Carbide skiving of case hardened gears.• Computer (CNC) controlled accuracy • (15000mm dia).
LARGE GEAR CUTTINGInternal and external gearing to 15000mm dia. x 2500mm face.• Re-cutting of w orn girth gears and • slew rings.• Full involute form carbide finish cutting • of gears.
HEAT TREATMENTOne of Australia’s largest specialised heat treatment facilities encompassing:• Oil quench & tempering, stress relieving.• Gas carburisingvia pit furnace or f luid • bed 1800mm dia. x 5000mm.• Tool steel heat treatment.
INDUCTION HARDENINGTooth by tooth full contour induction hardening to produce a hard w ear resistant case up to 20mm deep supported by a tough impact resistant core.• Mill pinions, slew bearing races.• Traction gears.• Spin hardening of pins and splines.• 15,000mm dia. x 2500mm face.
METALURGICAL LABORATORYAn extensively equipped laboratory to facilitate both failure analysis and the inspection of test pieces heat treated w ith each and every furnace charge.
GEAR GRINDINGAustralia’s most comprehensively equipped gear grinding facilities w ith 4Höfler form grinders.• 2500mm dia. x 1500mm face x 40Mn.• Completely climate controlled area.• Prof ile and lead modif ication facilities • (tip/root relief and crow ning).• CNC Form grinding of both internal and • external gearing to 2500mm dia.
GEAR INSPECTION LABORATORYA climate controlled inspection area for the verification of all gear geometry parameters.• Lead involute and pitch inspection.• Calibrated inspection machines.• Crack detection.
GEAR BOX TEST BED FACILITY 2MW FULL LOADEvery gearbox w e manufacture or overhaul is test run and a detailed test run report compiled.• Partial load testing.• Back to back full load gearbox test • capability.• DC stepless drive system.
CO-ORDINATE MEASURING MACHINE3D machine w ith lead, involute and pitch software to enable the complete inspection of large gearing.• Climate controlled laboratory • environment.• Gears to 15,000mm dia. x 2500mm face.• Gearbox housings and complex shapes.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
BEVEL GEARSSPIRAL
HELICALSTRAIGHT
Also
WORM WHEELS&
WORMSHAFTS
CAPACITY:8 off 5-axis machines
Size ≤ ф4m• BEVEL GEARING • WORM GEARING •
DESIGNED OR REVERSE ENGINEERING & MANUFACTURED UNDER ONE ROOF
DESIGNUsing state-of-the-art engineeringcalculation programs in the hands of talentedengineers, a 3D model of your bevel gearcan be produced to DIN, AGMA or Gleasonstandards from the outputs. For replacementgears, the model of the existing design canbe acquired from a CMM and modified tosolve the problem which caused it to fail.Tooth modification can also be optimised togive quiet running gears.
INSPECTIONHofmann Engineering prides itself on producing superior quality products. The onlyway to ensure that this is achieved is by imposing a highly accurate inspectionprocess which the Spiral, Helical or Straight Bevel Gearing along with the WormGearing must pass before they can be released from the factory. All these types ofGearing are inspected on our two large CMM’s or the portable CMM arm.
CUTTINGHofmann Engineering currently has 8 new 5-axis machines for cutting spiral, helical and straight bevel gearsalong with worm wheels. It also has a unique software, crafted exclusively to obtain the optimised CAM programto machine the profile of spiral, helical and straight bevel gears plus worm wheels.
WORM MESH CONTACT INSPECTIONWorm wheel and wormshaftbeing inspected to confirm contact accuracy.
WORM GRINDINGWormshafts being ground on one of our Hofler form grinders. After grinding the accuracy is preliminary checked prior to final inspection on the CMM
HEAT TREATMENTOver the years, Hofmann Engineering has developed the technology toheat treat many different types of gears. This technology can also beapplied to spiral, helical, straight bevel gears and wormshafts to improvetheir performance and li fe. Hofmann Engineering is capable of casecarburising to a diameter of 1.87m, and full contour, tooth-by-toothinduction hardening to a diameter of 4m. Once the gears have been heat-treated, they can be hard cut to DIN 3.
TESTINGHofmann Engineering can testtheir spiral bevel gears in thegearbox on their load test cell toensure that the gearbox will bewithin the noise specificationsrequired by the customer.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
METROLOGYINSPECTION
DESIGNMETALLURGY
SPECTROANALYSISULTRASONICS
ONSITE INSITU INSPECTION Hofmann Engineering continually improve quality and expand their library of product improved parts by pushing the frontline of inspection technology.
The tw o 6-axis Portable Co-ordinate Measuring Machines (PCMM) run a number of different softwares for general inspection and also a unique gear inspection sof tware and achieve an accuracy of 20µm (≈0.001”).
A state-of-the-art Laser Scanner attaches to the head of our PCMM’s, and produces a laser scanned point cloud from w hich a model can be created.
The tw o Laser Trackers have up to a 320m radial measuring volume producing micron accuracy on large parts such as mill heads, gearbox casings and slew gears.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
ENGINEERING DESIGN• 2D and 3D CAD to produce
manufacturing draw ings.• 5-axis CAM to program
machining.We design all types of components including:• Aerospace tooling• HPGR’s• TrackpadsPrograms: AutoCAD, Solidw orks, Unigraphics NX CAD/CAM, PEPS, Catia v5, CADDS, and Pro_E.
GEAR DESIGN & ANALYSIS Programs: KISSsof t and TBK.Gear tooth optimisation; contact pattern and modif ication analysis to produce quiet running gearing.Shaft and bearing calculations.Typical design components: spur, helical and double helical gears and splines; planetary gear trains; straight, skew , spiral, zerol and hypoid bevel gearing; w orm gearing; special tooling; and f lexible couplings.
FINITE ELEMENT ANALYSIS (FEA)Static and dynamic FEA simulations can be performed.Special gear tooth FEA programs to analyse cracks in cast gearing.Typical applications: gearbox casings; Hofmann re-designed components; cast gearing; rope drums; and eccentrics.
METALLURGYComplete metallurgical lab for:• quality control of heat treatment
processes;• metallurgical failure analysis.Our speciality is failure analysis of gearing to AGMA and DIN standards.
SPECTROGRAPHICS ANALYSISFull chemical composition analysis of carbon and alloy steels; stainless steel; aluminium; copper; and nickel alloys.Ideal for material identif ication and Weld Procedure Specification.
ULTRASONIC NDT INSPECTIONFor quality control and defect identif ication.NATA certif ied operators.In-house and external Quality Assurance.
CMM LABORATORY INSPECTIONA state-of-the-art, climate controlled and vibrationally isolated inspection laboratory houses the f ixed CMM. With accuracy to 2µm, the CMM has the capability, software and is accredited to inspect gears to 6m diameter, pinions f rom small to large mill pinions, aerospace parts, w orm gearing, bevel gears and many other components.
contact regardless of movement in foundations and/or driven component.
• Can use recirculating f iltered oil.• Reduced maintenance as alignment
checks and adjustments are eliminated.• Pow er to 10 000kW per gearbox.
GEARBOXES STANDARDCompletely designed and manufactured in
house using AGMA and DIN standards.• Standardrange of multi-stage drives.• Precision Case-carburised and ground
gearing to AGMA 14 for quiet reliable operation.
GEARBOXES SPECIALSSpecial Gearboxes can be designed to fit existing foundation as a direct replacement of your old drive. (Flender, Falk, Valmet etc.)• Pow er upgrades, ratio changes and
replacement parts available.• Torque-splitting gear drives.
INCHING DRIVESHofmann Engineering makes a range ofinching drives to f it to new and existing mill and kiln drives. Features include:• Planetary main reduction.• Hydraulic or electric.• Integral or separate brakes.• Disengaging couplings.
systems.• Re-circulating f iltered oil systems.• Infrared temperature monitoring systems. • Measures gear mesh temperature.• Sealing systems for girth gears and
trunnion bearings.
LUBRICANT SUPPLYHofmann Lubrication division has an agreement w ith Kluber Lubrication Germany AG to supply a range of products, directly formulated to Protect the Gearing that w e design and manufacture.
This forms an integral part of our Gear Protection Package used to improve the life of high performance gearing.
ONSITE MACHINING• Flange and Journal machining to 14m
dia.• Line boring and drilling to 3m dia x 6m L.• Grinding and linishing of kiln tyres.• Milling of keyw ays and surfaces.• Welding and heat-treatment.• Bolt tensioning.• Special purpose machinery design and
manufacture to suit your application.
ONSITE INSPECTION & CONSULTING SERVICE .• Inspection and assessment of your mill
and drive train.• Failure analysis including Engineering
and Gearing design review . Finite Element Analysis and Metallurgical Analysis.
ONSITE SERVICE• Laser alignments of drive trains.• Girth gear/pinion installation.• Reconditioning of w orn gearing using
case hardened pinions and chemical etchant.
• Trunnion bearing installation including scraping in of w hite metal bearings.
6000 TONNER VERTICAL ROLLING PRESSMax thickness 220mm
Width 3650mm
Hardness 390BHN
FABRICATIONTypical steel plate to AS3678 Grade 250,
EN S235JR, ASTM A36.
Segments prof iled to shape w ith bevelling.
Stainless Steel Clad plate available.
FABRICATIONPlate UT examination to AS 1710
Flange plate Z property tensile tested.
Welded and tested to AWS D1.1
Stainless Steel to AWS D1.6 available.
VERTICAL BORER
Bendigo:Schiess Ø9.22m x 4.45m height 200T
Schiess Ø7.0m x 3.50m height 200T
Bassendean:Schiess Ø8.75m x 2.7m height 200T
FLOOR BORER
Bendigo: INNOCENTI CNC
15.3m x 5.0m high x 1.25m Z travel.
Floor plate area 19.50m x 6.55m
CNC Rotary Table 2.5m x 2.5m x 200T
FLOOR BORER
Bassendean:WMW BP160CNC
12m x 3.9m high x 2.0m Z travel.
Floor plate area 18.0m x 6.0m
CNC Rotary Table
LARGE VERTICAL MACHINE:Bassendean & Bendigo:Floor Borer and 200T Table to machine and drill Mill Shells up to Ø15m by 7m height.
SZIM GANTRY MACHINING CENTRE:Unique boom arrangement combined w ith a rotary table w ill allow the machine to act as vertical borer and drill on the same set up. Max capacity Ø15m.
WELDING MANIPULATOR:Adjustable to accommodate head angle. Manipulator & Boom drives synchronised. 200 tonne capacity. CNC controlled for SS cladding of heads and shells
ROAD & SEA FREIGHT
HEAT TREATMENTStress Relieving Furnace Ø14m x 4m
SURFACE FINISHAbrasive blast, paint, Epoxy Coat and rubber line as required.
PACKAGINGMachined surfaces coated with rust inhibitor. Packaged and protected for road, ocean and air freight.
automatically through all loading stages regardless of:• Mating gear axial run out.• Foundation movement and temperature expansion changes.• Deflections and load variations.
APPLICATIONS• Mills, Kilns, Dryers and Car Dumpers.• Dragline, Shovels, Winders and Slewing Drives.• Any gear drive where self aligning is required to reduce maintenance.
Case Hardened Gear couplings to transmit torque.
Hardened spherical bearings to enable self aligning motion.
MILL DRIVES TO 20,000KW• Using 2 off 10 000kW drives. • 4 off self aligning pinions drive the • girth gear. • Mechanical drive options to 34MW.
3) SATP - Self Aligning Twin Pinion DriveConventional Self Aligning Pinion with plummer block bearings.• Retrofit to existing mills and drives.• Pinion shaft is reversible.
• 4 standard sizes 18Mn, 22Mn, 25.4Mn & 30Mn that • covers the complete range to 10,000kW.• Single motor runs two self aligning, torque splitting • pinions direct meshed with the girth gear.• Reduced foundation, installation and running costs.• Oil re-circulating system for gearbox and girth gear.
Self-aligning pinion mounts directly to the output shaft and is integral with the main gearbox.• Reduced foundation and installation costs.• No low speed coupling or plummer bearings.• Split lube system between gearbox and open gearing is • now possible.
Self-aligning overhung pinion mounts directly to output shaft main gearbox.• Lowest foundation and installation costs.• No low speed coupling or plummer bearings.• Split lube system between gearbox and open gearing is • now possible.
Geometry Hofmann Hobbing (HSS) Skiving (Carbide Hob) Form Milling (Carbide) Finger Milling + Double Helic alExample Maximum Cap External Internal Gear External Internal Gear Exte rna l Internal Gear External Internal Gear
M odule Mn 2 5.4 Max Module 50 Mn 25 Mn 50 Mn 25 Mn 100 Mn 60 Mn 100 Mn 60 Mn Pressure An g 2 5° Max Press Ang 4 5° 45° 4 5° 4 5° 45 ° 45° 45 ° 45°
He lix Angle 5° 3 0' Max Helix Ang 4 5° 45° 4 5° 4 5° 45 ° 45° 45 ° 45°
Nos T eeth Z 282 Max No Tee th 700mm 700 700 700 700 700 700 700 Face Width F 860 Max Face Width 2500mm 500 2500 500 2500 600 2500 600 Outside Dia da 7247 Max Outside Dia 14000mm 14000mm 14000mm 14000mm 14000mm 14000mm 14000mm 14000mm Weight (t ) W 50 Max Weight 130 t 130 t 130 t 130 t 130 t 130 t 130 t 130 t
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
SITE AUDITSEvaluate Girth Gears and their conditions. Determine suitable forged steel rim plate –dimensions based on pitch, face w idth & Gear diameter. Order forged rim plate based on site audit. Rim plate can be ordered to suit a variety of Gears on site.
SITE GEAR INSPECTIONS• Full Dimensional inspections done onsite.• Diameters, Lengths, Hole PCD • Full Gear inspection including:
• Pitch.• Lead.• Involute.
• Hardness testing.• Crack detection.• Material chemical analysis.
DESIGN• CAD design w ith 3D modelling to
produce accurate manufacturing draw ings.
• FEA analysis to optimise the w eld sizing to keep stress levels to a minimum.
• Gear consulting.• Gear design & rating calculating to DIN
& AGMA standards.
FORGED STEEL• Rim plate can be held in stock until
required.• One plate can be purchased to suit a
variety of Gears on individual or corporate sites.
• Once forged steel is in stock, manufacture lead time can be signif icantly reduced.
OXY CUTTING• The forged steel is marked out & oxy-cut
to w idth to suit the specific gear to be manufactured.
• Purchase of material in advance (No holding fee) allow s the spread of costs over period of time.
BENDINGThe individual lengths of plate are then rolled to the specif ic radius required for your gear.• 6000 tonne roll pressing capacity.• Unlimited length.• 250mm thick x 3700mm w ide.
.
FABRICATION• Individual segments are fabricated to the
strictest of welding and inspection procedures.
• NDT Inspection including 3rd party NATA ultrasonics.
• Full penetration submerged arc w elds on critical joints.
• Stress relieved.
MACHINING• Proof Machined.• Finished machined.• Dimensionally inspected to
internationally recognised standards.• Full gear inspection including final mesh
testing.
INSTALLATION & AlignmentsExperienced team available to Plan, Manage & install your; Girth Gears, Pinion Assemblies, Gearboxes & Inching Drives.Fully Equipped w ith all tooling, for laser Aligning, Machining, Fabrication & Mill Drive Adjustments Ready for site w ork.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
OPEN GEAR RECONDITIONING
PROCEDURE
1) WORN GIRTH GEARWith less than 0.5mm of involute wear.
2) WORN SOFT PINIONWith over 5mm of wear.
3) INSTALL HOFMANN CASE HARDENED PINION
4) APPLY H0FMANN PROCEDURE.1) Measure involute Wear on Gear.2) Clean and Crack detect gear using magnetic particle method.3) Install Hofmann case hardened Pinion. Case Hardness must exceed 55HRC.4) Laser align Drive Train.5) Accurately in-situ grind girth gear using the case hardened pinion as a master.6) Apply Hofmann Grafloscon A-C1 Ultra primer to pinion and gear.7) Inspect lubrication system and connect running-in lubricant Hofmann
Grafloscon B-SG00 Ultra.8) Start gear drive slowly increasing the power as the contact improves.9) Apply repair Chemical Etch Hofmann Grafloscon D-SG00 Ultra to heavy
contact areas until good contact is achieved.10) Monitor and completely document the installation procedure.
5) FINAL GEAR CONTACT 6) FINAL PINION CONTACT- 23 -
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
SELECTING OPEN GEAR RECONDITIONING PROCEDURE
SELECTING GEAR RECONDITIONING PROCEDURE
Measure involute wear on gear then select reconditioning procedure.
Procedure 1: If involute wear is less than or equal to 0.5mm => In-situ grind and chemical etch utilising a Hofmann case hardened pinion.
Procedure 2: If involute wear is greater than 0.5mm => Reverse open gear.
Procedure 3: If both flanks of the gear are worn => Re- cut the open gear.
Procedure 4: If insufficient material is left to re-cut the gear => Replace the open gear.
WARNING!!Do not install a new pinion against a worn open gear unless one of the above procedures (from 1 to 4) has been performed. The new involute form on the pinion would only contact the high points of the worn open gear and this can lead to:-
View of Open Gear showing substantial involute wear
• Extreme vibration and noise.• Severe wear and pitting on both pinion and gear.• High possibility of tooth breakout and destruction of • both the pinion and gear.
contact regardless of movement in foundations and/or driven component.
• Can use recirculating f iltered oil.• Reduced maintenance as alignment
checks and adjustments are eliminated.• Pow er to 10,000kW per gearbox.
GEARBOXES STANDARD• Completely designed and manufactured
in house using AGMA and DIN standards.
• Standardrange of multi stage drives.• Precision case carburised and ground
gearing to AGMA 14 for quiet reliable operation.
GEARBOXES SPECIALS• Special Gearboxes can be designed to
f it existing foundation as a direct replacement of your old drive. (Flender, Falk, Valmet etc.)
• Pow er upgrades, ratio changes and replacement parts available.
• Torque splitting gear drives.
INCHING DRIVESHofmann Engineering makes a range of inching drives to f it to new and existing mill and kiln drives. Features include:• Planetary main reduction.• Hydraulic or electric.• Integral or separate brakes.• Disengaging couplings.
BOGIE DRIVES• Complete motor, gearbox, coupling
assemblies for bogie w heel drives.• Spiral bevel gear input. These drives
are shaft mounted alignment free.
PLANETARY HIGH SPEEDPlanetary gearboxes for compact drive solutions. Case carburised gears, precision ground to ensure equal load sharing. Carbo-nitrided Internal ring gears. All gearing can be precision ground to DIN 3 (AGMA 15) to ensure quiet, smooth operation.
CONVEYOR DRIVE 3000KWConveyor drive gearboxes, shaft mounted or f loor mounted. Case carburised and ground gears. S.G. Iron Housings or Fabricated from Mild Steel.Supplied complete w ith cooling systems and condition monitoring if required.
CENTRIFUGE GEARBOX .Special purpose gearboxes designed and manufactured to meet the customer’s specification. This free f loating, inline drive replaces a complex and expensive planetary gearbox.
HIGH SPEED GEARBOXESHigh speed drives, speed increasing and speed decreasing, w ith white metal bearings w here appropriate. Gears ground to very high accuracy levels ( DIN 3). Units to 50,000 kW and 20,000 RPM input speed have been manufactured.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
ADVANCEMENT THROUGH TECHNOLOGY
using:
IMPROVED CASE HARDENED & GROUND GEARING
COMPUTERISED GEAR GEOMETRY & PROFILE OPTIMISATION
HIGH CAPACITY BEARINGS
IMPROVED SEALING & LUBRICATION
UPGRADE YOUR EXISTING GEAR DRIVES
MORE POWER & LONGER LIFE
QUIETER OPERATION
LEAK PROOF SEALING
RE-RATIO
NEW GEARBOXOLD GEARBOX
AUDITING YOUR GEARBOX REPAIR SHOP
Compare Others Hofmann
Do they have Gear Design and Consulting services? Are they members of any gear standard associations? (AGMA, DIN, ISO)
Do they have a certified Gear Inspection Laboratory to inspect gear accuracy?Can they provide computerized printouts of lead, involute and pitch?
Do they have a Co-ordinate Measuring Machine for checking bore alignment and size of gearbox housings?
Do they have gear manufacturing facilities for producing improved replacement gearing?
Do they have heat treatment facilities for replacement gearing, including qualified Metallurgists? Do they have carburizing, induction hardening, nitriding, quench & tempering and stress relieving facilities?
Do they have modern, climate controlled gear grinding facilities, capable of producing accurate gearing to DIN 3/AGMA 15?
Do they have a gearbox test bed facility for load test running gearboxes?
Do they have gearing trained site crews for installing and laser aligning gearboxes?
Do they have the equipment and know how to rebuild your gearboxes?
Hofmann Engineering has extensive experience rebuilding gearboxes, small and large, to exacting specifications. If you need your gearbox to run more efficiently Hofmann’s can help.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
SUGAR MILL GEAR INSTALLATION & ONSITE SERVICES.• Consultation and Inspection of complete drive • train including detailed analysis and reporting.• Laser alignment and installation of the complete • drive train.
HOFMANN ONSITE GEAR RECONDITIONING PROCEDUREUsing the Hofmann case hardened pinion as the accurate master and then precision in-situ grinding and using a special chemical etchant to in-situ recondition the w orn mating gear.
DRAGLINE & SHOVEL SITE WORKHofmann Engineering completely:• Inspect,audit and condition monitor critical • dragline and shovel components.• Do complete site installation including machining • and w elding.
ONSITE MACHINING SLEW BEARING• Design, manufacture and operation of • specialized on-site machining equipment to • solve your site machining problem.• Perform large site machining projects to 14m • dia.
ONSITE SERVICE
CONSULTATIONINSPECTIONMACHINING
FITTING
WORLD WIDE MILL AND KILN SITE INSTALLATION & SERVICEInstallation by the Hofmann Site crew of Hofmann Engineering manufactured girth gear, and a tw in pinion self-align gearbox, inching drive & electric motor at a Gold mine in Ghana.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
TRUNNION JOURNAL MACHINING AND REPAIR• Max dia: 3600mm.
• Remove/replace trunnion roller bearings
• using oil injection and specialized
• extraction and bearing installation jigs.
• Scrape in w hite-metal/bronze bearings.
RE-MACHINING TRUNNION FLANGE FACES• Max dia: 14000mm.• Onsite removal & installation of trunnion.• Onsite refurbishment & machining of mill • trunnions.
ONSITE MACHINING OF MILL SHELLS• Special trunnion journal alignment tooling • to insure that both trunnion journals are in-• line. • Mill refurbishment.• Shell crack inspection and w eld repairs • including stress relieving.
REPAIR TRUNNION BOLT AND LINER BOLT HOLES• Purpose manufactured tooling for • production drilling/boring and tapping.• Re-bore and sleeve w orn liner bolt holes • to prevent liner bolts f rom breaking.
OIL & GAS, RIG EQUIPMENT REPAIRSONSHORE & OFFSHORE• Onsite machining, f itting & laser • alignment.• Gearbox & gears manufactured and • repaired.• Pump and valves installed and serviced.
LASER ALIGNING• Laser alignments of drive trains for mills, • kilns, turbines etc. • Girth gear/pinion installation.• Gearbox bore laser alignment inspection• Engine block crankshaft bore alignment • inspection and rectification.
MACHINING GEARBOX MOUNTING FLANGE• Flange & bore refurbishment.• Site inspection and drafting.• Special purpose machinery designed and • manufacture to suit your application.• Bolt tensioning equipment.
LINE BORING ,WELDING AND ON-SITE MACHINING • Repair of bucket bores.• Onsite line boring – engine blocks, ship • propeller housings, crushers.• Line boring and drilling to 3m dia x 6m L.• Milling of keyw ays and surfaces.• Site Welding and heat-treatment.
KILN TYRE REFURBISHMENT BY IN-SITU GRINDING• Kiln roller and tyre refurbishment by • machining and grinding.• Crusher rolls in-situ grinding to remove • uneven w ear.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
KILNSERVICES
WORLD WIDE KILN SERVICES
• Consultation
• Inspections
• Alignment Surveys
• Refurbishments
• Tyre / Roller surface Reconditioning
• Gear installations
• Maintenance Planning
RECONDITIONING:
Rollers and tyres can be machined,ground or linished to recondition tyreand roller surfaces, correcting anyuneven wear and or taper using ourpurpose built reconditioning unit.
Our purpose built reconditioning unit canbe adapted to suit most rotary kilndesigns and can be transported worldwide to meet customer requirements.
Tyre & Roller diameters are measuredprior to and after reconditioning toconfirm profiles are flat and parallel tothe centre line axis.
MAINTENANCE PLANNING:
Major maintenance projects needcarful planning to ensure timelyand correct performance.
Correct procedures and methodsrequired in order to obtainequipment performance on startup.
Alignment tolerances maintainedduring installations and repairoutages.
ALIGNMENT:
Survey carried out using hard contactand fixed datum method.
Tyre & Roller diameters are measuredduring normal operation with the aid ofelectronic measuring device that isaccurate up to 0.10mm. This allowaccurate profiling for wear conditionsand averaging for alignment
Basis of the alignment is to achievecorrect alignment of the units actualcentre line which in turn is positionedin relation to the meshingcharacteristics of the main drive girthgear and pinion.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
1. KILN ALIGNMENT SURVEYINGSurvey by hard contact method.• Check alignment of the kiln.• Re-align kiln to ensure smooth running.
2. KILN CENTRELINE SETTINGThis enables datumns to be established from w hich future measurements can be taken.
3. ROLLER ALIGNMENTRollers are aligned using hard contact method from direct centre lines.
4. ROLLER & KILN TYER MEASUREMENTElectronic measuring of diameters accurate to 0.10mm.This is critical as part of the information needed to give correct kiln alignment.
5. MACHINING TYERS & ROLLERSMachining of roller by tool to obtain optimum material removal.Both kiln tyers and roller can be machined or ground on-site.
6. SHELL CHANGE-OUTShell change-out and straightening.• Shells can be site measured and then manufactured by us up to
15m in dia.• Site shell change out and straightening including in-situ sub arc
w elding can be performed by the Hofmann site team.
7. GIRTH GEARSGirth gear manufacture, installation, reversal, reconditioning and alignment.• Site measure pinions and gears.• Manufacture complete gearing in house.• Install and align w ith our site crew.• Site gear reconditioning available.• Hofmann open gear lubrication and lubricants also available.
RE-RIMMED GEARS• Remove old rim and weld new rim to
hub with full penetration welding.
Hofmann Engineering has the experience and technology to provide you with all of your sugar mill drive train needs. High & low speed gearing, shafts, lubrication and sealing solutions, crush roll pinions, planetary drives, consulting, onsite service and more.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
HIGH SPEED GEARBOXES• Replacement gearing and new gearboxes.• Ratio changes and pow er upgrades.• Case-carburised to 62 HRC and precision • ground to AGMA 12 (DIN 5).• White metal bearing manufacturing and • reconditioning.
CRUSH ROLL PINIONSCast to 300 BHN.Forged to 300 BHN and CNC cut to AGMA 6 quality. Eliminates casting inclusions that can cause fatigue fracture.Induction hardened to 55 HRC and CNC hard cut to AGMA 6 gives 200% improvement in pitting and 70% improvement in bending strength.
CRUSH ROLL PLANETARYPlanetary drives, use electric motors and eliminate crush roll pinions w hile still allow ing centre distance adjustmentPrecision gears, case hardened and ground to AGMA 12 quality.Standard modular design minimises spare parts capital and can be changed out in less than one shift.
GEARBOX SPECIALSSpecial Gearboxes can be designed to fit existing foundations as a direct replacement of your old drive. (Flender, Falk, Valmet, David Brow n etc.)• Pow er upgrades, ratio changes and • replacement parts available.• Torque-splitting gear drives.
LUBRICANT SUPPLYHofmann Lubrication division has an agreement w ith Klüber Lubrication of Germany AG to supply a range of products, directly formulated to Protect the Gearing that w e design and manufacture.
This forms an integral part of our Gear Protection Package.
LOW SPEED JOURNAL BEARINGS• White metal• Bronze• Pedestals and caps• High tensile studs and nuts• Full reconditioning and installation • available.
GEAR RE-RIMMING• Old gear material tested to ensure material • compatibility• Rim machined off leaving bare diaphragm.• New forged rim w elded to diaphragm by • submerged arc full penetration w elding.• Full contour induction hardening to 55 HRC • and hard cutting to AGMA 10• Full NDT to ensure integrity.
ONSITE INSPECTION & CONSULTING SERVICE• Inspection and assessment of your mill • and drive train.• Failure analysis including Engineering • and Gearing design review . Finite • Element Analysis and Metallurgical • Analysis.
ONSITE SERVICE• Laser alignment of gear trains.• Gear and pinion installation.• Reconditioning of w orn gearing using • Hofmann Engineering’s reconditioning • procedure.• White metal and bronze bearing • installation including scraping.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
OIL & GAS
PARTS AND
SERVICE
SUB-SEA BALL CHECK VALVESLarge 1500mm dia. Borsig Sub-sea Ball Check Valve completely overhauled and tested by Hofmann Engineering.
GAS LIQUIFYING PUMP MANUFACTURED AND TESTED UNDER LICENCE TO STORK.Hofmann Engineering continue to havelicensing agreements w ith recognisedOEM’s for the manufacturing, assembly,and shop testing of precision valves andpumps.
- 35 -
With Western Australia's largest heavy engineering facility operating 24 hours per day, 7 days per weekHofmann Engineering is able to offer an unparalleled range of services to its clients. Emergencyrepairs and rapid rebuilds can be conducted on a w ide range of machines, components and specialtools, complete w ith compliance documentation to most international codes and standards.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
SUBMERGED ARC WELDING OF SUB-SEA BALL VALVEThe ball v alve is submerge arc welded and heat treated in an electric furnace (stress reliev ed). Welding performed to detailed w eld procedure.
BALL VALVE FULLY MACHINEDBall precis ion machined to giv e 100% clean up. Full magnetic particle and ultrasonic crack detection.
BALL VALVE FINISH GROUNDThe ball is Hard Chromed and then finish ground to a 0.02mm roundness tolerance and polished to a 0.4 micron surface finish.
BALL VALVE ASSEMBLYAssembly is handled by our specialist valve technic ians. Where required the assembly is carried out in a purpose built clean room.
BALL VALVE PRESSURE TESTINGDue to safety requirements many high pressure v alves are pressure tested in a below ground concrete w alled pit. Certification for the testing is prov ided.
SWAGING TOOL REBUILT AND MODIFIEDPile Reforming Tool for Goodwyn A Platform for straightening bent py lons. This tool w as re-engineered, part manufactured and then tested by Hofmann Engineering.
TOP DRIVE DRILLING SYSTEMSWe supply replacement parts including all gears as w ell as rebuild services.Gearing case hardened and ground to DIN 5 quality .
WINDLASSWe supply replacement parts including all gears as w ell as rebuild services.This includes both the capstan, brakes and gearbox driv e system.
TRIPLEX SLUSH PUMPSReplacement parts for common makes like National including gears, crankshafts, etc. Rebuild and repair serv ice.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
• Standard Helical.• Planetary.
All makes overhauled and rebuilt after marketwith improved high performance casehardened precision ground gearing. Thisensures smooth, quiet, reliable operation.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
ONSITE MACHINING & MEASURINGPrecision portable co-ordinate measuring machine for checking bore alignment and accuracy insitu.Portable line boring for remachining worn gearbox housing insitu.
HofmannCompare
SITE INSTALLATION AND SERVICEDo they have gearing trained site crews for installing and laser aligning gearboxes? Are they able to provide on-site machining services?
GEARBOX BACK TO BACK LOAD TESTINGDo they have a gearbox test bed facility for load test running gearboxes? Hofmann Engineering has full load gearbox test running to 2000kW.
GEAR GRINDING – PRECISION – EXTERNAL & INTERNALDo they have modern, climate controlled gear grinding facilities, capable of producing accurate gearing to DIN 3/AGMA 14 required to produce quiet running wind turbine gearing?
HEAT TREATMENTDo they have heat treatment facilities for replacement gearing, including qualified Metallurgists? Carburizing, induction hardening, nitriding, quench & tempering and stress relieving facilities? Gas carburising to 1800mm dia for the output stage gearing for wind turbines.
MACHINING / FABRICATIONDo they have gear manufacturing facilities for producing improved replacement gearing? Hofmann Engineering also fabricate and machine many of the wind turbine components.
CO-ORDINATE MEASURING MACHINEDo they have a Co-ordinate Measuring Machine for checking bore alignment and size of gearbox housings? This is required for the planet carrier of the planetary stage on wind turbine gearboxes and components.
GEAR INSPECTIONDo they have a certified Gear Inspection Laboratory to inspect gear accuracy? Wind turbine gearing requires very high gear accuracies of DIN 3 or better.Can they provide computerized printouts of lead, involute and pitch?
GEAR DESIGNDo they have Gear Design and Consulting services and a full metallurgical laboratory for carrying out failure analysis? Are they members of any gear standard associations? (AGMA, DIN, ISO)
AUDITING YOUR WIND TURBINE GEARBOX REPAIR SHOPDo they have the equipment and know how to rebuild your gearboxes?
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
ENERGY POWER
STATIONS
Steam Turbines
Coal Pulverising
Gas Turbine Gearboxes
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
MANUFACTURE• New seals from castings (including S/S)
or forgings. Re-engineering from samples.
REFURBISHING• Re-caulking of seal strips to refurbish
diaphragm seals.
MACHINING• Machining a casing on a floor borer.
Check split face for distortion and remachine if necessary.
MACHINING• Rotor of approx Ø3m. Removal of
blades and finish machining of new blades.
INTERNALS OF A GAS TURBINE GEARBOXAbility to fully inspect, manufacture and refurbish all components.• Precision Grinding of the gearing to Din
3 quality.
REFURBISHINGGas turbine gearbox that is being stripped, assessed, completely refurbished and load tested.
COAL MILL GEARBOX REFURBISHMENTS• Onsite removal• Manufacture of components• Worm & w heelmanufacture• Total refurbishment• Onsite installation
ONSITE SERVICESOnsite measuring using our portable coordinate measuring machine. This can measure in a single set up Ø2.4m to an accuracy of 0.025mm (0.001”). Photo show s performing f latness check on a low er casing. Compliments our Laser Tracker w hich can span 25m in one setup.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
UDD MECHANICAL CONVERSIONSHofmann Engineering Pty Ltd completely designed, manufactured and installed the mechanical drive for the UDD (Universal Dig & Dump) dragline.
Our concept provided a free-floating, alignment-free, shaft-mounted, modular gearbox that bolts to the side of the rope drum. This gearbox contains HofCarb carburized and precis ion ground gearing with a filtered oil recirculation system.
Being shaft-mounted and modular enables this gearbox to be pre-test run and changed out in under one shift without requiring any re-alignment.
INPUT MOTOR PINIONS• Double Helical Hard Cut Narrow
Gap. Case Carburised to 60-62HRC & finished to AGMA 12 quality.
• Single helical case hardened. These are fitted with eccentric cartridges and spherical roller bearings. This assembly fits straight into the Bucyrus hois t or drag gear case bore. The eccentric cartridges enable simple mesh adjustment without having to re-bore the gear case.
• Quench & tempered to 360 BHN and cut to AGMA 10 quality as per OEM design.
• Carb Bearing Alignment Technology with Eccentric Cartridges can also be used on Bucyrus machines to give over a 200% improvement in bearing life.
SWING RACK ASSEMBLIES• Alloy Steel Forged Rack Rims Q&T to
330BHN Combined with fabricated construction.
• High performance racks with a unique heat treatment procedure that increases the hardness to 450BHN.
• Swing Pinions are full contour induction hardened.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
SHAFT MOUNTED GEARBOX• M odular Design allows quick and easy
change out in one shift.• Rigid Construction reduces distortion
and gear misalignment.• Free Floating isolated from dragline floor
distortion.• Alignment Free gearbox bolts directly to
the hoist drum.
ROPE DRUM DESIGN• Fini te Element Analysishas been
conducted in order to eliminate the inherent OEM rope drum internal stiffener cracking problem
• Hofmann Engineering Pty Ltd designremoves all internal lateral stiffeners and increases the drum shell forging thickness to reduce stress.
ROPE DRUM MATERIAL• Hofalloy2 Forged Plate has been
specifically formulated by Hofmann Engineering Pty Ltd to accommodate industry requirements. The result is a Quench & Tempered high alloy steel suitable for induction hardening, machining and fabricating. Stocked quantities are maintained in order to reduce lead-times
ROPE DRUM ROLLING• The stocked Hofalloy forged plate rolled
into a perfect cylinder using Hofmann Engineering Pty Ltd.'s, 5000 ton Vertical Rol l Press.
• The above drum is 150mm thick 1900mm long and w ith an OD of 2947mm, in its rolling condition it is approx. 300 BHN.
ROPE DRUM MACHINING• All Rope Drums are fully machined in-
house from the initial fabrication preparations right through to cutting of the rope grooves, turning of the flanges and drill and tapping of the holes. This ensures that complete control of the project is maintained and the highest standards of quality are guaranteed.
GEARBOX MODULE• M aintenance and testing of gearbox can
be done in a clean w orkshop rather than inside the dragline.
• Installation requires less skill and accuracy with the self aligning pinion.
• Gearing forged, HofCarb carburised to 60-62HRc, precision ground to AGMA 12
INDUCTION HARDENING • New Forge Steel drums fully fabricated
using full penetration w elds and then full contour induction hardened to 55 HRC for a case depth of 6mm.
• Worn Drums. All cracks removed before building up w ith 30mm of submerged arc w elds and then induction hardening
ROPE DRUM CLAMPS• Unique design developed by Hofmann
Engineering Pty Ltd.• Clamp is integrated into the rope drum
center f lange.• Precision machined.• Case Hardened. • Optimized for w eight. • Greater clamping force.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
1 2
3 4
OEM Drum Hofmann Drum
5 6
PROPEL CAMSHAFT/ASSLY• New quality high alloy forgings either
in 4340 or EN26 Quench & Temperedw ith transition areas polished & shot peened.
• The propel cam can be w eld repaired to improved hardness or manufactured as a new casting.
SWING SHAFTS• New shaftsof high alloy forged steel• Repair Worn out splines and bearing
Journals to as-new condition using a technically advanced, individual w eld & Heat Treatment procedure.
SWING PLANETERY
• The swing gears are manufactured from high quality alloy forgings and heat treatment to increase load carrying capacities.
• All the gearings are ground to higher AGMA quality
RACK SEGMENTS.
• Swing Racks Forged fabricated design w ith High Alloy steel forged segment.
• Induction Hardened full contour induction hardened to 45-49HRc 8mm thick case.
• Impact Resistant Core hardness of 280-310BHN.
SWING RAILS & ROLLERS• Upper and Lower Rails High Alloy steel
forging Q&T to 340-360BHN and precision CNC machined.
• 3rd Rail Design.• Rol lersHigh Alloy steel forging Q&T to
410-415BHN and precision CNC machined & Flangeless Roller design
• The rails & rollers are trial assembled using our laser tracker.
. SWING PINIONS• Forged High Alloy steel precision
ground to AGMA12.• Induction Hardened full contour
induction hardened to 54-58HRc 8mm thick case.
• Impact Resistant Core hardness of 280-310BHN.
CENTRE PINTLE• Designed using FEA modeling to
reduce magnitude of stress and reduce stress concentrations.
• New forged steel construction to overcome cast steel cracking problems.
• Forged steel Centre Pintle used on P&H 9020 in operation since 2002.
SWING BASE (TUB)
• Full onsite measure, in-house 3D modelling and design of the complete Tub, Racks, Rails, Rollers & Centre Pintle
SWING BASE (TUB)
• The five individual modules are fully assembled in our w orkshop for your inspection prior to transporting to site & erection into your one piece Base
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
HOIST & CROWD GEAR BOXES• Hoist, Sw ing, Crow d and Propel.• Overhauled & New .• Like For Like Replacement Internal • Gearing or Upgraded to match todays’ • technology of Case hardening by • Carburising or induction hardening.• Full AGMA Quality Inspection carried • out on all Gearing.
DIPPER RACKING• Cast Manganese Steel through
hardened.• Cast Alloy Steel through hardened .• Forged alloy steel with machined tooth
prof ile through hardened 320-360BHN. Guarantee pitch and accuracy.
CROWD PINIONS & RACKS.• Forged steel machined, heat treated • Precision machining of teeth.• Full range for all makes and models.• Dipper RacksCast Alloy or Manganese
Steel as per OEM. Hofmann Improved Forged Alloy Steel w ith machined tooth prof ile.
ROPE SHEAVES.• New Forge fabricated design.• Rebuilt by submerged arc w elding.• Re-prof iling to original dimensions.• Full Contour Induction Hardening to 54-
56HRc.
BOOM REBUILDS.• Striped, Assessed & Evaluated.• Repaired to remove all cracking.• Fully stress relieved.• Finish machined in single setup.
DIPPER AND DIPPER ARM• Full or partial Rebuilds.• NDT Inspection & Repairs.• Onsite line Boring & Welding w ith the Hofmann Line Boring Machine.
• Pins, Bushes & Link replacements.• Latch bars & Latch Levers. Full range for all makes and models.
PINS AND BUSHES• PINS deep case Induction Hardened
and • precision ground.• Bushes Designed and manufacture to • suit your f ield requirements.• Selections of Materials, Heat Treatment, • Lubrication groove design & Coatings.
SPLINE & SHIPPER SHAFTSREPLACEMENT GEARS• Replaced With New Or Weld Repaired.
Replacement gears and components for all areas of your shovel.
TRACK PADS• M anganese Steel Up To 18%• Alloy Steel quench and tempered• Induction Hardened Alloy Steel
quench & tempered and then deep case Induction Hardened on running path and in the track connecting bores.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
HYDRAULICEXCAVATOR
REPLACEMENT PARTS
BUCYRUS TERREX - O & K
KOMATSU LIEBHERR
CATERPILLAR
When it comes to designing machines that can be all things to all people OEM’s are always between a rock and a hard place. In the final product, this inevitably leads to compromises.
We have the flexibility and expertise to custom design
components that will provide outstanding performance
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
PINS• Deep case Induction Hardened and precision ground.• Retro-f it “f loating” pin designs available.• We can offer a range of solutions to individual pin problems,
including re-design of lubrication paths either through pin or bush to achieve considerable life expectancy gains.
BUSHESDesigned and manufactured to suit your specific requirements.A selection of:• Materials.• Heat Treatment processes.• Surface coatings.• Lubrication groove design. Traditional f igure eight or fish-
netting is available.
TRACK PADS• Manganese Steel Up To 18%.• Alloy Steel quench and tempered.• Induction Hardened Alloy Steel quench & tempered and then
deep case Induction Hardened on running path and in the track connecting bores.
PLANETARY GEAR BOXES
(Slew and Final Drive)• Full or partial strip dow n.• Replaced w ith new improved high performance gearing.• Fully assembled, test run & technical report submitted.• Onsite inspections also available.
SLEW RINGS AND BEARINGS• Manufactured new , or refurbish your old components.• Re-machine, induction harden and fit oversize rollers to reclaim
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
RECLAIMER/STACKER/CRANE SLEW BEARINGS• KRUPP
• VOEST ALPINE
• O&K
• MITSUBISHI
• FAVCO
HYDRAULIC EXCAVATOR SLEW BEARINGS• CAT
• KOMATSU
• LIEBHERR
• O&K
• DEMAG
DRAGLINE/SHOVEL
SLEW BEARINGS• BUCYRUS
• MARION
• P&H
• PAGE
SLEW BEARINGS
NEWREPAIRED
ALL MODELS TO 16M DIA
SLEW BEARINGS AND SLEW GEARS
Designed to meet your requirements, manufactured from your draw ings or reproduced from your samples. The Hofmann Engineering Team w ill design your Slew Bearings using the latest design software and Computer Aided Draf ting to DIN, AGMA, British or Australian Standards.
Hofmann Engineering is unique. We have a complete design manufacturing and testing facility for Slew Bearings in house. This ensures the fastest possible delivery time and guarantees the quality of our f inal product. Each stage of manufacture is monitored through our Accredited ISO 9001 Quality Assurance system available for split conf iguration or full circle.
Induction Hardening of bearing surfaces of the Slew Bearing, and/or the gear teeth, is carried out using the latest technology. We have more than 20 years experience in Surface Hardening techniques.
Each Slew Bearing is supplied w ith full certification covering Material, Heat Treatment and Dimensional Checks. Hofmann Engineering’s experience in this f ield extends to over 100 complete slew bearings of various types.
On Site Inspection, Consultancy, Machining and Installation are also available.
Both New and Repaired Replacement Slew Bearings and Slew Gears To Suit the Following:
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
DESIGN & DRAWINGOur team of highly trained Engineers will prepare plans from your existing Slew Bearings or new designs can be made to fit your requirements.
VERTICAL BORINGA range of Vertical Boring machines for turning of Slew Bearing Rings up to 16 metres in diameter.
GEAR CUTTINGExternal and Internal Gear Cutting on our extensive range of CNC and Conventional gear cutting machines.
INDUCTION HARDENINGIn addition to induction hardened bearing raceways we also offer tooth by tooth full
contour induction hardened gear teeth. This process produces a hard w ear resistant case up to 10mm deep, supported by a tough impact resistant core.
INSPECTION LABORATORYCo-ordinate measuring machine w ith lead involute and pitch sof tware to enable the complete inspection of components in a climate controlled laboratory environment.
ASSEMBLYAll slew bearings are trial assembled prior to despatch.
FROM OLD...
Our experience with Slew Bearings is second to none, and we are able to deliver the finished article on time, to precise parameters.
... TO NEW
Com puterised full contour induction hardening of large Slew
Gears and Bearing Race Ways
Ha rd Wear Resistant Case:Max Case hardness = 58 HRCMax Case depth = 10 mmMax residual compressive stress depth = 10mm
Sectioned test piece showing the induction hardened profile
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Hofmann Induction Hardened Alloy Steel Trackpads provides the ultimate in wear resistance and toughness that modern technology can at present offer. This is why tracked earth moving equipment that requires long travel life uses this technology almost exclusively. Hofmann Engineering also offers Alloy Steel and Manganese trackpads that are interchangeable with the OEM. For customers looking for that extra performance, these can be upgraded to induction hardened alloy steel trackpads.
Hofmann Engineering’s Hydraulic Excavator Trackpads are made from High Alloy Cast Steel and are Induction Hardened to provide the ultimate in life and performance for the large amount of traveling these machines need to do.
2) ALLOY STEELGood Strength and Stretch Resistance
• BUCYRUS• MARION
Alloy steel trackpads are used as they do not require deformation to increase hardness, The alloy properties have been chosen to ensure minimal deformation in w orking areas of the trackpad. To improve w ear resistance and strength these pads can be induction hardened.
3) MANGANESE Cost Effective
• P&H
Manganese trackpads are now only used by P&H. They provide a cost effective material that gives good toughness and w ork hardening properties. Hofmann Engineering also offers interchangeable P&H pads in induction hardened alloy steel for those customers looking for longer life.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
11. FINAL INSPECTIONTrackpad castings are fully dimensionally Inspected including UV crack detection to ensure highest quality standards are met.
5. CASTING INSPECTIONThorough inspection of the castings is undertaken so as to ensure no less than a top quality product for our customers.
10. TEMPERINGTrackpads are tempered after Induction Hardening to improve impact strength and durability in induction hardened zone.
4. QUENCH AND TEMPERINGAlloy steel trackpads are quench and tempered w hich results in an excellent combination of mechanical properties.
9. INDUCTION HARDENING BORES Combined w ith hardened pins, w ear resistance is greatly increased, resulting in an overall low er w ear rate.
3. CASTINGWe have a number of foundries w orld-wide that w ork to our precise specifications in supplying our pad castings. Hofmann personnel manage, audit and inspect each step of the casting process.
8. INDUCTION HARDENING DRIVE LUGSDistortion due to w ear is reduced, resulting in longer effective lifespan of the drive lugs and the drive tumbler, and hence effectively the entire undercarriage.
2. SPECIFICATION DEVELOPMENTDetailed specifications are prepared to cover the complete manufacturing process from start to finish. A Portable Coordinate Measuring Arm is used to aid precise product development and inspection.
12. PACKING & DESPATCHTrackpads are painted and palletized for transport and despatched according to the customers order.
6. CNC MACHININGTrackpad Bores are Precision f inish machined on our state of the art range of Dörries Scharmann CNC Machining Centres.
7. INDUCTION HARDEN-ING RUNNING PATH A detailed explanation of Induction Hardening is show n on the next page. Note that manganese trackpads can not be induction hardened due to their material properties.
1. DESIGN & DRAWINGOur team of highly trained Engineers w ill prepare plans from your existing Trackpads or new designs can be made to fit your requirements. 3-D modeling using Solidw orks and Finite Element Analysis (FEA) are used to optimise design performance. 1
2
3
4
5
7
8
9
10
11
COMPLETE MANUFACTURING PROCESS CONTROL GUARANTEES QUALITY AND PERFORMANCE
6 12
Bore hardened to 8.5 mmDriving lug case depth 13 mm
Note: Case ContourRunning surface case depth 17.5 mm
The main advantage of induction hardened trackpads, pins, rollers and drive tumblers is improved wear resistance and increased resistance to plastic deformation. In addition to that, by Induction Hardening, we are generating compressive stresses in the surface of the part and that increases fatigue resistance. By selecting the right material and hardness for individual components, wear can be controlled even further.
A hardened case depth of 15mm or more is selected as these parts can be subjected to excessive wear before replacement and this assists in preventing case crushing.
We offer induction hardening of drive lugs, roller surfaces and Pin bores. Alternatively bores can be fitted with case hardened bushes (carburised to 3mm). Pins are normally made of either 4140 or 4340 and are quenched, tempered and induction hardened to required depth. Case Carburised Pins are available for extreme working conditions where the pins have proved to be wearing excessively.
Trackpads that are to be induction hardened are made from a high alloyed steel that is first normalised and tempered. The trackpads are then quench and tempered which results in an excellent combination of mechanical properties.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
MINING TRUCK PARTS
MECHANICAL &
ELECTRIC FINAL DRIVE
TRANSMISSIONS
- 57 -
Cracks
Designed to meet your requirements, Hofmann Engineering Pty Ltd Mining trucktransmissions are manufactured from your drawings or reproduced from yoursamples. Hofmann Engineering Pty Ltd has complete design, manufacturing,assembly and testing facilities to produce your mining truck parts. The processinvolves strip and assessment, product improve, assembly and testing of allcomponents and meets all internationally recognised gearing standards and qualityassurance standards. Hofmann Engineering Pty Ltd also provides site inspection,consultancy, machining and installation services.
PRODUCT RANGEOur product range incorporates both Mechanical and Electric final drivetransmissions and associated components for the following mining trucks:
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
GE MOTORIZED WHEEL KOMATSU TRUCK• Complete strip and assessment.• Worn gearing can be re-ground on our
precision gear grinders.• Badly w orn and pitted gears w ill be
replaced w ith new improved high performance gears meeting DIN,AGMA and Australian Standards.
• Full assembly and test run.
RING GEARS• Induction hardened full contour tooth by
tooth to 52-56RC and then precision ground to AGMA 12 minimum quality.
• New or w eld repaired as per customer requirement.
RING GEAR INDUCTION HARDENED• Computerized Induction hardening
facilities. • Full contour tooth by tooth induction
hardening of ring gear ensures both root and flank is hardened.
• Capable of achieving a case hardness up to a depth of 10mm and tough impact resistant core hardness.
CNC FORM GRINDER FOR HIGH PRECISION GROUND GEARINGHofmann Engineering has a high precision Hofler rapid 2000 form grinder w hich can grind both internal & external gearing, w orms and form cutters. This new machine has set a new benchmark of AGMA 13 or up as high as an impressive AGMA 14 for these gears.
PLANET GEARS AND PINION SHAFTS• Precision ground and timed gear set
assemblies.• Multiple assemblies matched for gearbox
installation (Load Sharing).• DIN Or AGMA QA inspection.
PRODUCT IMPROVEMENTCATERPILLAR PLANET GEARSHeat treatment Case carburising in action.• Chromium carbide precipitation reduces
coef f icient of friction between working components, increases residual compression and w ear resistance.
• Increase in fatigue resistance in the roots of gears.
• Shot peened root.
GEAR GRINDING• Fully CNC controlled gear grinding
facilities capable of achieving DIN 3 specification.
• Complete climate controlled area.• Prof ile and lead modif ication facilities.
GEAR INSPECTION• On Klingelnberg PSFU for authentication
of lead, involute & pitch.• Gear inspection to International
standards.• Ultraviolet crack detection.
FINAL DESPATCH• Finish gear coated w ith Molybdenum
disulphide C220.• Corrosion protected.• Fully protected in fumigated timber crate
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
BOGIE ASSEMBLIESComplete bogie assemblies including fabrication, machining and assembly of equalisers plus supply and assembly of gearbox / motor and wheels .
SLEW BEARING to 15M
Designed and manufactured to suit your specific requirements, or re-engineered from sample.Induction hardening of the bearing surfaces is carried out us ing the latest technology.Each Slew Bearing is supplied with full certification covering Material, Heat Treatment and Dimensional Checks.
ONSITE MACHINING OF SLEW BEARING• Perform large site machining projects
up to 14m dia.• Slew bearing installation and
alignment also performed by our skilled technicians.
ROLLING THE SLEW GEAR RIM FORGED HOFALLOY PLATE10.2 metre forge/fabricated slew gear manufactured from AGMA grade 2 plate during the initial rolling of the rim plate. The plate shown is 150mm thick, however plate is stocked up to 220mm thick.
GEAR CUTTING THE SLEW GEARThe 4 segment 10.2m dia slew gear is being cut as an assembled ring. This ensures accurate pitching over all the split lines.• Individual segment lengths from 1m
to 12m possible.
FINAL PREPARATION OF COMPLETED SLEW GEARFinal preparation for despatch including corrosion protection prior to securing in fully enclosed crates.• Assembly simplified by having long
segment lengths.
TORQUE SPLITTINGBUCKET WHEEL GEARBOXOne of the most complex gearboxes to be manufactured at Hofmann Engineering. The gearbox is fully fabricated in 3 sections from grade 350 plate and weighs 22 tonnes when complete with torque arm.
BUCKET WHEEL GEARBOXThe gearbox comprises all carburisedand ground gearing from the spiral bevel input stage to the torque splitting arrangement achieved through the planetary stage, “the circular cas ing on the outside of the gearbox encloses the planetary stage gearing”.
SITE SERVICE• Complete assembly of stackers and
reclaimers.• Site inspection including
• slew bearing and gear measurements
• crack detection both MPI and UT• gearbox inspections
• site fitting including gearbox, slew bearing and bucket wheel change outs
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
RAIL
Wheels & AxlesTraction Gearing
BogiesComponents
• GE• Alco• Siemens• Voith• Hitachi
Hofmann Engineering has provided engineered rail solutions for over 40 years andis a single source provider for all types of machined components. HofmannEngineering has extensive experience in precision machining and offer efficientproduction services backed by ISO 9001:2008 and AS9100 compliant qualitymanagement systems. Bull gears and pinions are manufactured for most makes oflocomotive (GE, Alco etc).
BULL GEARS• Case carburised & shot peened and
ground and / or skived.• Tooth by tooth full contour induction
hardened and ground.• Profile regrinding of old worn bull
SPIRAL BEVEL GEARS• Case carburised to 58 – 62 HRc
and precision hard cut to DIN Class 3.• Capacity to manufacture spiral bevel
gearing up to 2m.
PINIONSCase carburised and accurately ground including taper crowning. A shot peened full root radius on our pinions provides a substantial strength increase.
Radii on Corners
Shot peened Polished Root on Radii
Involute ground w ith tip & root relief
Hobbed w ith protuberance cutter
Taper crowned lead
Chrome nickel steel – gas Carburisedcore ref ined
HOFMANN ENGINEERING PTY LTD
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
3.0 BOGIES
1.1 MACHINING WHEELSForged w heels finished machined on oneof our 6 CNC vertical borers including multipallet changer.
1.2 MACHINING AXLESAxles manufactured to AAR Standards. Sourcing of forged material, NDT tested and finished machined.
1.3 PRESSING WHEELS ONAXLESControlled pressing of wheels onto axlesusing calibrated press with incorporatedchart recorder for traceability.
2.2 CMM COMPONENT
MEASUREMENTTemperature Controlled Calibration andInspection Facilities, w ith 5 x Co-ordinateMeasuring MachinesPhoto show ing Axle Bearing componentsbeing inspected after machining.
2.3 PORTABE CMM
MEASURMENTPortable Coordinate Measuring Machines(PCMM) & laser trackers used to measuremanufactured components both in thew orkshop and onsite.
2.1 MACHINING LOCOMOTIVEENGINE BLOCKSEngine blocks are precision machinedcomplete on one of our seven floor borers.Insitu line boring w ith our portable lineboring machine is also offered.
3.1 BOGIE FABRICATIONBogie frames can be completely fabricatedusing both certif ied welders & roboticw elding. Full stress relieving also available.
3.2 BOGIE MACHININGThe bogie frames are then precisionmachined on one of our 5 gantry CNCmachining centres.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
MK2 PORTABLE LINE BORING MACHINE KIT• Line bore up to 1000mm dia x 6000mm • in length @ up to 240rpm• Suitable for, Boring, Facing, Drilling and • when used with optional attachments can • perform all the following tasks.
WELDING ATTACHMENT• Contains a Millar Welder with inverter arccontrol technology.
• Weld bores from 25mm to 1000mm• Storage box contains extension nozzles • and special welding bars.
MACHINING CENTER• Table area of 1500mm X 1200mm• Converts the line boring machine into a • horizontal borer.• Ideal for repetition work.
FLANGE FACER• Adjustable feed rate from 0.1mm/rev up • to 0.7mm/rev (Gramophone finish).• Faces from 160mm dia to 500mm dia.
FACING HEADS• 180mm or 230mm dia facing head with • variable feed. • 600mm Maximum facing dia 1000mm• with optional tool holder.
TAPER BORING HEAD• Suitable for Boring and Facing.• Universal tool for difficult work.• Ideal for larger diameters.
KEY WAY MILLER• A valuable tool for both manufacturing • and maintenance operations.• Can cut new keyways without the need to • disassemble gearboxes, drive shafts etc.
ORBITAL LATHE• Complete kit to turn up to 1000mm dia x • 3000mm lg.• Operate at speeds up to 40 rpm.
MICRO BORE TOOL HOLDERS• Complements the Hofmann Portable Line
Boring Machine.
LARGE BORE KITEnables Boring up to 1000mm DIA.
ALIGNMENT GAUGEEssential for accurate support bearing alignment when machining multiple bores.
ONSITE WORKPortable Line Boring Machine in use Onsite.Workshop quality repairs in the field.
TYPICAL APPLICATIONS• Girth gear split lines.
• Gearbox split lines.
• Pressure vessels.
• Hold-dow n bolts.
• Engine blocks.
*ANY LARGE BOLTING APPLICATION*
HOFNUTS ENABLE YOU TO:
REMOVES THE NEED TO USE:
HOFNUT
THE HIGH TENSION BOLTING
SOLUTION
• Tighten large nuts with hand wrenches.
• Tighten split joints
accurately to the correct tension.
• Minimal space
requirements.
BO
LT T
EN
SIO
N
• Hydraulic tensioning. • Crane wrenches. • Other cumbersome
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
STOCKED BLANKSFOR QUICK DELIVERYHofmann Engineering holds in stock arange of pre-machined billets to minimiselead time in the production of acustomer’s specif ic requirements. Theseblanks can accommodate any size and/orpitch betw een 30mm and 80mm and areavailable in both grades.
MIS-ALIGNMENT SOLUTIONSSPHERICAL SEATSHave a mis-aligned bolting face? The useof spherical seats allows the tensioning ofbolts that may be out of alignment,ensuring that your equipment remainstensioned securely. The spherical seatscan withstand more than tw ice the forcethat can be exerted by a fully tensionedHofNut and still maintain their originalstructural integrity.
For your particular HofNut sizing or application
requirements contact us as below.
OD Thick Size (mm)Number
of bolts
Standard
Torque (Nm)
M24 x 3.0P 43 25 6 8 15
M30 x 3.5P 53 29 8 6 37
M36 x 4.0P 66 37 10 6 67
M42 x 4.5P 75 37 10 8 69
M48 x 5.0P 85 45 12 8 110
M56 x 5.5P 100 45 12 8 133
M64 x 6.0P 113 61 16 8 265
M72 x 6.0P 119 64 16 8 316
M80 x 6.0P 132 64 16 12 292
M90 x 6.0P 145 66 16 16 284
OD Thick Size (mm)Number
of bolts
Standard
Torque (Nm)
1-3/8" x 6TPI 63 37 8 6 66
1-1/2" x 6TPI 69 37 8 8 60
1-3/4" x 5TPI 79 44 10 8 101
2" x 4.5TPI 92 47 12 8 139
2-1/4" x 4.5TPI 100 48 12 8 155
2-1/2" x 4TPI 113 61 16 8 280
2-3/4" x 4TPI 119 62 16 8 316
3" x 4TPI 132 62 16 12 278
OD Thick Size (mm)Number
of bolts
Standard
Torque (Nm)
M30 x 3.5P 53 29 8 8 37
M36 x 4.0P 66 37 10 8 69
M42 x 4.5P 75 37 10 12 64
M48 x 5.0P 85 45 12 10 122
M56 x 5.5P 100 45 12 12 133
M64 x 6.0P 113 61 16 10 289
M72 x 6.0P 119 64 16 12 311
M80 x 6.0P 132 64 16 16 316
M90 x 6.0P 145 66 16 16 316
OD Thick Size (mm)Number
of bolts
Standard
Torque (Nm)
1-3/8" x 6TPI 63 37 8 8 62
1-1/2" x 6TPI 69 37 8 8 88
1-3/4" x 5TPI 79 44 10 12 101
2" x 4.5TPI 92 47 12 12 117
2-1/4" x 4.5TPI 100 48 12 12 152
2-1/2" x 4TPI 113 61 16 12 234
2-3/4" x 4TPI 119 62 16 12 288
3" x 4TPI 132 62 16 16 261
Standard
Metric
Coars e Pitch
Size
Im perial HofNuts - HSN43.
Standard
Im perial
Coars e Pitch
(UNC)
Size Jacking Bolts
Metric HofNuts - HSN41.
Size
Im perial HofNuts - HSN41.
Jacking Bolts
Jacking Bolts
Jacking Bolts
Metric HofNuts - HSN43.
Standard
Metric
Coars e Pitch
Standard
Im perial
Coars e Pitch
Size
GRADE HSN 41STANDARDThe HSN 41 HofNuts areused for general mechanicalapplications. These nuts arestandard on the split lines ofour girth gears, andcommonly used on new lymanufactured andrefurbished gearboxes. Arange of sizes are kept instock for quick delivery.
BOLTING LUBRICATIONFor ease of lubrication, each set ofHofNuts comes w ith a tube of 46MR401lubricant for use on the jacking boltthreads and between the tips and thew asher.
GRADE HSN 43HIGH TENSIONFor high tension applications,we recommend our HSN 43grade HofNuts, which aremanufactured from a highergrade of steel and containmore jacking bolts. The 43series can apply up to 50%more force to a split linewhen used with anappropriately rated bolt.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
HOFMANN ANGLE ISOLATION VALVES IN OPERATIONRemote “Air” operated system to open /close and isolate slurry anglevalves. This proven system has a safety and ergonomic advantageby removing operators from line of fire. Can also operate multiplevalves simultaneously from a control box. Equal opportunity productmade easy and simple to operate. Grinding seat made easy.
Before After
DRAIN VALVES MADE EASY TO OPERATEPower operating device fitted to a manual valve can be operatedusing a suitable torque multiplier. Valves can be opened and closedfrom 2 directions, difficult to operate valves facing the ground hasbeen made easy. Through advanced gearing it produces three timesinput torque to open and break through built up scale. Fully testedand patented product.- 67 -
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
IN HOUSE ASSEMBLYSlurry valves fully manufactured,Assembled and Hydrostatically tested inhouse for Local and International Aluminarefineries for over 35 Years. We have anexperienced team to manage largeprojects.
VOLUME MANUFACTURESlurry valves manufactured for an overseasexpansion.• We can manufacture from single valves to
thousands in our facility.
VALVES FOR EXPORTHofmann Engineering can organisepackaging and shipping by Air or Oceanfreight to your required destination.
PUMP REPLACEMENT PARTS - HIGH CHROME IRON – 27% to 35% Cr ( 60 Rc Hardness )Hofmann Engineering manufactures and product improves standard Pump Parts that w ould suit your individual application. Productimprovements are carried out in conjunction w ithsite reports and details of application. Threads machined in hardened parent material
HIGH CHROME IRON SPOOLSFabricated spools w ith high chrome iron liners
HIGH CHROME IRON VALVESFabricated valve bodies w ith high chrome liners
CRUSHER OVERHAULSHofmann Engineering provides a complete Factory Crusher Rebuild Service. Rebuilds to “as new”condition w ith the offer of product improvements to increase reliability. We also carry out OnsiteRepairs, Installations, Commissioning and Inspection Services duringplant shutdow ns.
CRUSHERREPAIRS
ANDSERVICES
OVERHAULSREPAIRS
SITE SERVICINGSITE INSPECTION
REPLACEMENT PARTS
GYRATORY CRUSHERSPRIMARY•SECONDARY•TERTIARY
• ALLIS CHALMERS
• FULLER TRAYLOR
• JACQUES
• KAWASAKI
• METSO MINERALS
• KOBE
• NORDBERG
• SANDVIK
• SYMONS
JAW CRUSHERS• ALLIS CHALMERS
• JACQUES
• KUE KEN
• METSO MINERALS
• NORDBERG
• WESSERHUTTE
IMPACT CRUSHERS & SPECIALS• Hofmann Impact Crusher.• Hofmann Mobile Crusher.
MINERAL SIZERSWe can provide the follow ing series:• Replacement product improved
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
WELD PREPARATION• Crack machined out.• Weld prep machined to generate
alignment datums and to suit the sub arcprocess.
WELDING MANAGEMENT• We have in-house welding metallurgists
to develop weld procedures for thesedemanding & challenging jobs.
• Submerged arc w elding.
POST HEAT TREATMENTOn completion of welding, the entire shaftis stress relieved in a purpose built oventhat allows the shaft to be rotatingthroughout the process.
WELDINGAll weld repairs are monitored throughoutthe process. This enables HofmannEngineering to fully back challengingrepairs such as cracked or brokenadjustment rings.
MACHININGAll items are finish machined to OEMspecif ications. Threads are machinedusing a 5-axis vertical borer to ensurepitching accuracy.
ASSEMBLY Components can be partially or fullyassembled to reduce downtime duringcomponent changeouts.
SUPPLY OF BEVEL GEARSSupplied to AGMA 10 quality, either;• Quench & tempered to 360 BHN.• Induction Hardened to 56 HRC.• Case Carburised to 60 HRC.
SPECIAL REQUIREMENTSHofmann Engineering w ill develop & manufacture Special Crushers to meet your specific product or customise your existing equipment to suit your specific needs.
SITE & BREAKDOWN SERVICEExperienced Site Services team forinstallation, site inspections andcommissioning for planned or unforeseenshut dow ns.
CRACKED & WORN MAIN SHAFT REPAIRSHofmann Engineering can w eld repair Crusher Main Shafts that OEM’s consider irreparable or w here a replacement is not readily available.
Hofmann Engineering can manufacture new shafts to suit all types and makes of crushers.
WORKSHOP & SITE SERVICES PROVIDING MINESITES WITH THE COMPLETE PACKAGE
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Qu ality Assurance accreditation by Lloyds complements our total quality cu lture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
- 71 -
Hofmann Engineering can offer the following options for Edge protection
Tungsten Carbide blocks with bolt on hard faced retaining clamp plates
(Patent No: 2011301142)The solid tungsten carbide edgeprotection blocks are individually clampedand can’t break off, avoiding acceleratedwear. In the unlikely event of damage,individual b locks or clamp platessegments are easily replaced insitu.
Interchangeable Hard Faced clamp plates
Inspired by Hofmann Engineering’s bolton solid tungsten carbide edgeprotection, Hofmann Engineering’s bolton hard facing segments provide a costeffective a lternative to the solid tungstencarbide edge block solution. Withprimary and secondary carbides in atungsten matrix the segments are highlywear resistant and allow easyreplacement insitu in the unlikely event ofdamage.
A ONE STOP SHOP FOR HPGR MANUFACTURE & SERVICES
Replacement Tyre Options:NEW: Forged high tensile steel tyre, redesigned stud pattern and grade to suit application.
RE-SIZED: Existing tyre, reduced diameter, re-design.
REFURBISHED TO “AS NEW”: Weld O/D to original size, re-design.
Hard Facing overlay
Wear Resistant Steel Segments
Hofmann Engineering offers tailored and improved stud lining tyre designs to suit the ore type, feed and operating conditions. Implementation of varying grades and geometrical
configurations of carbide across the face of the roll also helps eliminate bath tub effect issues.
Stud breakage and chipping effects are addressed by the specific metallurgical, process and design capabilities of Hofmann Engineering.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Complete design, new manufacture and refurbishment of p lanetary gearboxes for HPGRs. Component part numbers cross referenced against OEM gearboxes.
Above: Hofmann refurbished P2SA-38 (2800kw) HPGR Gearbox under load test.
EXTENSIVE WORKSHOP CAPABILITIES:
200T lifting capacity, 4 stress relieving furnaces and over a dozen vertical and floor borers. In addition purpose built submerged arc welding, bearing refurbishment and stud extraction machines form Hofmann’s HPGR manufacturing arsenal.
HOFMANN HPGR FIELD-SERVICE
The Hofmann HPGR Service Teamis able to provide skilled manpowerat all leve ls, to meet the customersrequirements all over the world365 days a year. The range of sitestaff specialists covers all areas,from mechanical insta llat ion,hydraulic and electrical specialiststo complete site supervision. Theseteams manage complete HPGRInstallat ions, Gearbox Monitoring &Refurbishment Service, RollerChange-Out and machinecommissioning as well as completemachine inspection, conditionmonitoring, insitu repair andoverhauling.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
UNDERGROUNDMINING
PRODUCT IMPROVEDAFTERMARKET PARTS
FOR
CATERPILLARJOY GLOBAL
ATLAS COPCOSANDVIK
MACHINES
- 73 -
Drive Sprockets
• ‘HofCARB’ case hardening for sprokets to a Hardness of 60-62HRc. Process introduces carbide molecules into the martensitic microstructure to increase wear resistance and reduce surface fatigue. • Upgraded 18CrNiMo7 material used.
service life.• Offered in various pitch lengths to suit
Crawler pads
• Upgraded material used• Both spline ends are
induction hardened to improve torsional fatigue resistance.
Continuous Miner parts
Hofmann Engineering now offers superior product improved parts for underground mining machineries that are completely interchangeable to OEM parts.
Cutter Drums and Picks
Quill Shafts
• Offered as “new” or “Repair” units.
• Upgraded Picks to improve bonding between carbide and steel.
• Offered as forged construction • Optional induction Hardening availableTo suit tougher ore conditions.
JOEST JR-606 EXCITER GEARBOX• As-received by Hofmann Engineering for repair.• All parts have been re-engineered w ith
improvements to increase the service life.
LUDOWICI LE150 EXCITER GEARBOX• Refurbished by Hofmann Engineering prior to
being prepared for dispatch.
FULL LOAD TEST BEDTesting on test bed w here Vibration Analysis, temperature reading and oil samples are taken after f inal assembly
PRODUCT IMPROVEMENTS• Hofmann Engineering manufactured Case
Hardened and Ground Gears AGMA 10which replace the original through hardenedgears. This will increase service life andreduce the build up of metal contaminants.
• SCHENCK SLD 4385 Exciter Mounting Beamre-engineering by Hofmann Engineering w ithdesign improvements
• Galvanized / Painted w ith rubber coating• Improved material properties• Long cycle stress relieve• Welds dressed & shot peened
• Design improvements to Exciter Beam,Side/Cross Beams w ill remove potential crackinitiation sites to improve crack resistance ofthe beam, extending service life andreducingplant downtime
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
WELDING/FABRICATIONClose supervision ensures accuracy ofthe fabrication. Weld procedures andwelding processes are managed by ourexperienced team.
INLINE TESTINGNDT testing of welds, dimensionalinspections and leak tests carried out atvarious stages during the manufacturingprocess.
SURFACE TREATMENTStrict adherence to sand blasting andpainting procedures to ensure surfacetreatment w ill w ithstand the onsiteenvironment
MACHININGAll machining is able to be carried out in-house using a variety of conventional andmodern NC machines.
INSPECTIONAll components are inspected during andafter the manufacturing process. Criticalcomponents are jig tested for compliance
PRESSURE PARTSManufacture of all pressure parts is to thespecif ied Australian Standard andrelevant w elding codes.
ASSEMBLYAll f ilters are assembled and dry run.Bearing clearances, axial and radial runouts along w ith disc sector clearances arechecked as part of this process.
FACILITIES We are fortunate to have a number of large assembly bays w here this type of w ork can be carried out. This allow s more than 1 unit to be w orked on at a time.
PACKINGThe filter components are packed fortransportation either on flat racks,containers or directly onto prime movers.All machined surfaces are protected anda heavy emphasis is placed on securingthe items for sea freight.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
FIN STABILISER MANUFACTURE AND REFURBISHMENT
RIGHT: JOINT STRIKE FIGHTER PRODUCTION TOOLING
MILITARY APC CHASSIS
WING FLAPERON TOOL
Hofmann Engineering, a globally recognised engineering solutions provider to thedefence industry offers a range of specialised tooling to support the manufacture ofmajor components and sub assemblies for airforce, army and naval assets.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
- 79 -
CAPABILITIESOur full turnkey tooling service incorporates:• Engineering design.• Manufacture• Fabrication• Assembly• Accredited testing and
installation.
DEMONSTRATED SUCCESSHofmann Metaltec has been anaerospace industry supplier for over 25 years. Our solutions for major commercial and military aircraft programs include:• Project management• Lay-up mandrels• Bonding fixtures• Assembly jigs and fixtures• Mould tools for composite
manufacture• Parts manufacture and
assembly• Cutting tools for alloys and
composites• Machining of exotic materials
including Titanium, Inconel, Invar 36 and Aluminium
• Inspection and metrology
Hofmann Metaltec, a globally recognised engineering solutionsprovider to the aerospace industry offers a range of specialisedtooling to support the manufacture of metallic and compositecomponents and aero structures, together with the machining ofcomposite and metallic components.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
CUTTING TOOLS
Special purpose cutting tools and holders are designed and manufactured to thehighest level of precision to meet customer needs including reduced cycle time,reduced cost and improved quality.
We provide:• Design and manufacture of special purpose tooling including:
• Solid carbide & high speed steel form tools.• Special pocketed cutting tool holders suitable for
indexable carbide inserts.• Brazed carbide form cutting tools.• Special tool holders including arbours & mandrels.• Special form insert manufacture & service.• Form roller and sintered component finishing.
• Tooling and cycle optimisation to maximise production efficiency• Fast and efficient service utilising our multiple machining capacity
CUTTING TOOL SERVICE
CAPABILITIESSpecial purpose tooling design and manufacture
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
SPECIALISED CUTTING TOOLS
Our ANCA 5 axis CNC cutting tool grinding machines are equippedwith ANCA’s iView camera system. ANCA iView allows componentsto be measured while they are still in the machine to ensure perfectaccuracy, whether it is a complex form tool, accurate ball nose cutteror profiled roller.
All machines are networked to allow tools to be programmedand tested on ANCA’s state of the art tool grinding simulationsoftware, prior to being loaded onto any of the machinesallowing more efficient & accurate tool grinding.
Complex form tools with high accuracy areproduced using our grinding technology andtechniques.
Cutters can be PVD coated to suit applicationneeds.
Tooling can also be reconditioned to theoriginal manufacturer’s specifications toachieve required tool life and cost.
Our 5 axis machining capability covers the manufacture ofcomplex components, tool holders, pocketed tooling andarbours from almost any desired material with highaccuracy.
Along with our CNC cylindrical, Jig & Optical Profilegrinding, form inserts, rollers and components can bemanufactured as desired.
Hofmann Engineering is one of the onlycutting tool service companies in Australiawith a quality system that is aerospaceindustry accredited to AS9100.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
YOGHURT CUTTING TOOLS THERMO FORM TOOLING
CAN MAKING TOOLING FOOD & BEVERAGE CAN TOOLING
Z BARS RE-ENGINEERING SERVICES
FOOD PACKAGING
Food & Beverage Canning & Packaging
Cutting Tools Support Centre
This image cannot currently be displayed.
Hofmann Metaltec “Foodpack/Can Making” Tooling support centre offers worldclass manufacturing capability for Food Packaging and Can Makers toolingrequirements. We provide a single source fully managed service for themanufacture of precision tooling including die maintenance and refurbishment, wealso offer re-engineering services. Our purpose built climate controlledmanufacturing facility and specialist team of highly skilled tradesmen ensure wemeet the stringent tolerances precision and high standards required for theindustry. Our dedicated business ensures shorter lead times, fast delivery andrapid response times to all breakdown and maintenance work.
3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
Since 1969 Hofmann Engineering has p rovided specialist engineering services t o Australia’s industry leaders.
Quality Assurance certification by Lloyds co mplements our total quality culture.
Ou r commitment to continuous quality-improvement touches every aspect of o u r products, services and customer su pport.
YOGHURT CUTTING TOOLS PRODUCT IMPROVED - TOOL STROKE LIFE DOUBLED
EQUIPMENT RANGE
CAD/CAM DESIGN SOFTWARE INCLUDING:
• Catia v5
• Unigraphics NX4-6
• ProE
A RANGE OF PRECISION 2, 3 AND 5 AXIS NC MACHINES
INSPECTION & METROLOGY LABORATORY INCLUDING:
• Co-ordinate measuring machines (3)
• Laser tracker (1)
• Climate Controlled Environment
• Expertise in precision toolmaking
• Excellent knowledge of yoghurt cutting tools
• World class quality and workmanship
• 2.5 times more price competitive than OEM
• 10 to 12 week lead time on refurbishments
• Fast quotation process
• Technical support
DEMONSTRATED SUCCESS
Hofmann Metaltec has a vast experience inproviding engineered solutions to various foodpackaging companies.
CUTTING TOOLS SUPPORT CENTREHofmann Engineering’s cutting tools support centre offers worldclass tool making capabilities and provides a single source fullymanaged service to customers.
HOFMANN ENGINEERING CUTTING TOOLS SUPPORT CENTRE CAN OFFER:
CERAMIC DOMER PRESSURE RING DIE FOR FORMING BOTTOM END OF CAN
HIGH PRECISION TAB DIE TOOL ENHANCED LIFE USING HIGH PERFORMANCE COATINGS
PRODUCT IMPROVED TAB DIESTITANIUM COATED FOR LONGER SERVICE LIFE
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
SOLAR PANEL FRAMES
A RANGE OF PRESSED
COMPONENTS
PRESSINGHofmann Metaltec offers well-equipped and fully independent production pressing facilities with the capability for both short run batch and high volume production.
PRESSSHOP
The Metaltec facility specialises in:
• Automotive component pressing
• Supplies to whitegoods and general manufacturing sectors
• Deep drawing of steel, stainless steel, aluminiumand copper
• Post press operations such as spot and projection welding, machining and assembly.
Hofmann Metaltec’s pressingcapabilities include single anddouble acting presses rangingfrom 60-700 tonnes, cateringfor dies up to 10 tonnes, withoff-coil capability. Our broadrange of presses allowproduction flexibility andresponsiveness for urgentproduction requirements.
HOFMANN ENGINEERING PTY LTD3 ALICE STREET, BASSENDEAN, PERTH, WESTERN AUSTRALIA 6054
CAPABILITIES
• VERSON – 700 TONNE
• Size of bed: 2740mm x 1370mm
• Shut height: 2100mm, single action
• BRITISH CLEARING – 500 TONNE
• Size of bed: 2400mm x 1524mm
• Shut height: 1016mm, single action
DESIGN• Progressive and deep drawing press metal tooling. • Jigs and Fixtures• Turnkey Projects
MANUFACTURING• Press Metal Stamping• Duplex or Triplex dies for small batch runs• Off coil stamping for large production runs. • Deep drawing expertise in steel, stainless steel, aluminium and
copper.• Coil handling capacity up to 3 tonnes with feeders to 1M in width.
QUALITY• CMM Reporting• PPAP Submissions.(Pre Production Approval Process)• ISO Accredited AS9100 and ISO9001
• DANLY – 500 TONNE
• Size of bed: 2100mm x 1524mm
• Shut height: 914mm, single action
• JIANGSU YANGLI – 500 TONNE
• Size of bed: 1500mm x 1000mm
• Shut height: 650mm, single action
PRESS SPECIFICATIONS
ABOVE: SMELTER POT DOOR COVERS WITH HINGES AND LATCHES WELDED ON
LEFT: COIL FED PRESS
RIGHT: A RANGE OF MATERIALS; COPPER, ALUMINIUM, STEEL PRESSINGS
REPRESENTATIVES
&
HEAD OFFICE LOCATION MAP
- 87 -
C = Hofmann Engineering Pty LtdB = Perth Domestic AirportD = Perth International Airport
This image cannot currently be displayed.
Head Office
AIRPORT DIRECTIONS TO HOFMANN ENGINEERING (HEAD OFFICE)
WORLD REPRESENTATIVES
Please see www.hofmannengineering.com for more information regarding agents and representatives
HEAT TR EATMENT Full metallurgical laboratory for Failure Analysis
Atmosphere controlled: Gas carburising:
Total of 15 furnaces covering all aspects - Pit furnaces and fluidised bed. 1,900mm dia x 5,000mm long.
of modern heat treatment. Induction hardening: - Tooth by tooth induction hardening machine. 5 off machines
Gears, pinions, track pads. Full contour profile up to 15,000mm dia
Quench and tempering:
- Oil tank 30,000L 1,900mm x 5,000mm long
- Water/polymer quench
Nitriding:
- Carbo nitriding Furnace 900mm dia x 1,800mm
- Nitro carburising Furnace 900mm dia x 1,800mm
Tool Steels :
- Fluidised bed 1200°C Furnace 900mm dia x 1,800mm
Tempering Furnace 6,000mm dia x 3,000mm
Stress relieving - Gas Furnace 15,000mm x 15,000mm wide
Stress relieving - Electric Furnace 12,000mm dia x 2,000mm
Marquench
Shot peening
Sand blasting
FABR IC ATION / WELDING Fabricated gears, transmission boxes and mining equipment - 200 tonnes.
Plate Rolls 6,000T, 3,650mm width x 220mm thick
4,000T, 3,200mm width x 150mm thick
PRODUCT S UPPORT A ND F IELD SER VICE
LUBR IC ATION AND CO NDITION MONITORING
QUA LITY A SSURA NCE Certified to ISO9001 and AS9100 by Lloyds
LIFTING and HANDLING 26 Overhead Gantry Cranes to 200 tonnes
2 Yard Cranes & Straddle Carrier
5 Forklifts
FACTO RY S PACE Over 60,000m2 (approx. 15 acres) under-roof across four facilitiesThe above capacities are indicative only, please contact us with your specific requirements.
Information supplied is subject to change without notice.