© J.D. Theile GmbH & Co. KG
July 2014 1
Компания JDT
JDT- J.D.Theile GmbH & Co. KG
Founder
Johann-Dietrich Theile 1793 - 1874
Participation in the exibition of 1834 in Paris
Company in 1950
1819 – Foundation
17.08.2015 www.jdt.de 2
Wilhelm Hidding
son-in-law of the last bearer of the
name Theile
1819 Founded by Jochan-Ditrich Theile.
In 6th generations in private hands,
in 4th generation moved to family Hidding
230 Employees, 144 working in the production
approx. 40 Millions turnover
55% Part of turnover in mining
45% Part of turnover in industry
30% Part of turnover in Germany
70% part of turnover in other countries
670.000 Forged parts per year, all products are made at JDT
190.000 Mining chains
150.000 Lifting chains acc. EN 818 grade 8 and 10
1994 Certified DIN/ISO 9001
1995 Certified DIN/ISO 9001.2000
2010 JDT own robotics
JDT / Overview
17.08.2015 www.jdt.de 3
26.02.2016 www.jdt.de 4
JDT now
26.02.2016 www.jdt.de 5
Thanks to its long-standing experience, JDT is able to
collaborate in the standardisation committee for round steel
chains (NRK).
This standardisation committee is responsible for the national
(DIN), European (CEN) and international standardisation (ISO)
in respect of round steel chains (round steel chains for general
purposes, slinging gear, lifting chains, conveyor chains, anti-skid
chains and seizing chains) , including the accessories.
Among others, JDT has taken the lead on defining the
requirements for high-strength chains of the grade 10
(PAS 1061).
In the mining standardisation committee (FABERG) JDT
collaborates on specifying the worldwide acknowledged
standard for mining chains (e.g. DIN 22255) and locks (e.g. DIN
22258).
In the iron and steel standardisation committee (FES) JDT
incorporates its long-standing experience in respect of
developing and using modern high-performance materials for
standardising chain steels (DIN 17115).
Certificates and licenses
ISO 9001: certified since 1994
DNV: Type Approval in accordance with 2.7-1 (Offshore
Containers) since 1999,
BG: JDT was issued with the H3 stamp in the 1960s as the first
manufacturer of slinging chains. In 2008 BG confirmed the high
quality of the standard 10 (ENORM) for slinging gear as part of a
license.
Mining
Round link chains acc. to 22252 Ø 26-42
Плоские цепи для конвеера
Combi chain acc. to DIN 22255 Ø 38-48
Flat link chains acc. to DIN 22255 Ø 26-42
F-Class ® chain acc. to DIN 22255 Ø 22-60
Special flat chains for conveyor from company JOY
Plough chains and chains for the conveyor
BroadBand Ø 42, 50 PowerChain Ø 34, 42
6 26.02.2016 www.jdt.de
Lifting chains and attechment points
ENORM grade 10
www.jdt.de 26.02.2016 7
Own modern robot technology
26.02.2016 www.jdt.de 8
CAD/CAM developement and die
manufacturing
26.02.2016 www.jdt.de 9
Die forging, hydraulic hamme
26.02.2016 www.jdt.de 10
Hot bending and welding of chain links
until 60 мм
26.02.2016 www.jdt.de 11
Example: Chain 30 мм
Welding: 8 seconds
Load: 24 t.
Electromagnetic crack detection of a
master link and a forging (connector)
26.02.2016 www.jdt.de 12
THEIPA Flat connector Masterlink Ø 115 мм
All chains are 100% calibrated
26.02.2016 www.jdt.de 13
Customer Requirements
26.02.2016 www.jdt.de 14
• Dimensions and Strength
– Performance
– Reliability
• Resistance to operational conditions
– Wear
– Toughness
– Fatigue
– Corrosion
• Etc.
Chain materials properties
26.02.2016 www.jdt.de 15
• Strength – reliability of the chain
– resistance to wear
• Toughness – resistance to impact stress loading
– crack propagation
• Through hardening – homogenity of the properties
Standard Materials DIN 17115
26.02.2016 www.jdt.de 16
0
20
40
60
80
100
120
Пр
очность
, S
tre
ngth
, M
Pa
Уд
арна
я в
язк
ость
, T
houghness, J
Прока
ли
ваем
ость
, T
hro
ugh h
ard
enin
g,
mm
Rela
tive t
o 1
.6758,
%
Г-сталь, Mn-steels, 1.0412, 27MnSi6
Высококачественная сталь, High grade steels, 1.6541, 23MnNiCrMo5-2
Высококачественная сталь, High grade steels, 1.6758, 23MnNiMoCr5-4
Steel acc. to DIN and steel HO
made by JDT
26.02.2016 www.jdt.de 17
Comparison DIN and НО Steel
26.02.2016 www.jdt.de 18
0
20
40
60
80
100
120
140
160
Прочность
, S
trength
, M
Pa
Уд
арна
я в
язк
ость
, T
houghness, J
Прока
ли
ваем
ость
, T
hro
ugh h
ard
enin
g,
mm
Rela
tive t
o 1
.6758,
%
Г-сталь, Mn-steels, 1.0412, 27MnSi6
Высококачественная сталь, High grade steels, 1.6541, 23MnNiCrMo5-2
Высококачественная сталь, High grade steels, 1.6758, 23MnNiMoCr5-4
HO Высокооптимизи-рованная сталь, highly optimised HO steel
Comparison DIN and НО Steel
26.02.2016 www.jdt.de 19
• Corrosion properties
0
20
40
60
80
100
исходная ударная вязкость,
initial Toughness
40 дней в морской воде, 40 day of sea
water
96 ч в Н2S, 96 h of H2S
To
ug
hn
ess, J
ДИН 17115 1.6758, DIN 17115 spec. 1.6758
"НО" Высокооптимизи-рованная сталь, HO-Highly Optimised
F-Class chain®
– The Original –
26.02.2016 www.jdt.de 20
- Patented chain made by JDT
- Patented short studs and nominal size Ø 60 мм
26.02.2016 www.jdt.de 21
The whole range of mining chain
in standard steel and HO material
22 мм
60 мм
Breaking Force up to 5000 kN
The strongest chain in the world
Patented kinking protection :
“Short Studs“
26.02.2016 www.jdt.de 22
“Short Studs“
26.02.2016 www.jdt.de 23
Patented kinking protection
- Reduces chain kinking in case of slack chain
- Prevents stucking of chain at the vertical chain bed of flight bars
Ideas of the F-Class-Chain®
26.02.2016 www.jdt.de 24
Wear reduction
Operating safety
Performance
Standard equipment
Minimizing of investment costs
International experiences
F-Class-Chain - Experiences of application for increasing
the output by using conveyor chains of the newest generation
Advantages
JDT „Short Studs“
26.02.2016 www.jdt.de 25
Flexible vertical link
dynamic load can be taken by the
horizontal and the vertical link
Stiff vertical link
most dynamic load must be taken by
the horizontal link
about 30% reduction in fatigue life
Equipment
26.02.2016 www.jdt.de 26
Standard equipment can be
used with F-Class-Chain®
Example: 34/94x126 FCC
26.02.2016 www.jdt.de 27
Problems: Wear traces in deck plates
Chain: Flat link chain
BSL in Springvale, Australia
Reduction of wear traces in deck plates
34/94x126 F-Class Chain
Exchange: Since mid. 2005
99
94
Example:
Chain 42/109x146 мм F-Class
26.02.2016 www.jdt.de 28
In use since 03/2006
Face length 230m
Coal seam thickness 18m – 20m
Drive power 2x750kW (Front AFC)
2x850kW (Rear AFC)
Conveyor profil PF6-1142 (Front AFC)
PF6-1342 (Rear AFC)
Output per day 35.000t / 40.000t
Output per day after exchange 59.000 t
11
5
109
42x146 Combi- chain 42/109x146 F-Class chain
F-Class-Chain - Experiences of application for increasing the output by using conveyor chains of the newest generation
LTCC in Datong, China
Strongest chain F-Class
26.02.2016 www.jdt.de 29
After mining 12,5 mio t of coal
ready for the next face
Shendong Coal Group Corporation Limited, China
In use since 03/2011 – 08/12
Face length 293m
Seam length 4996m
Coal seam thickness 7m
Drive power 3x1800kW
Conveyor profil PF6H-1542
Output per day/month record
52.000 t
1.400.000t
Elongation due to wear only 2.4%
26.02.2016 www.jdt.de 30
THEIPA ® Connectors
THEIPA Block connector
for vertical use
THEIPA Flat Connector
for horizontal and vertical use
THEIPA Block connector
26.02.2016 www.jdt.de 31
Size dxt Top side & Conveying Direction
Batch Manufacturer
26.02.2016 www.jdt.de 32
Easy assembly due to
improved joint
geometry
Use two rollpins together !
Use a pin punch for
disassembling
Assembling of Block Connectors
THEIPA Flat connector
26.02.2016 www.jdt.de 33
Batch
Manufacturer Size dxt
Assembling of flat connectors
26.02.2016 www.jdt.de 34
Use two rollpins together!
Use a pin punch for disassembling
26.02.2016 www.jdt.de 35
Advantages of
JDT сonnectors
Comparison
26.02.2016 www.jdt.de 36
dxt b1 b2 c l D l BF D BF
Weight D Weight
[mm] [mm] [mm] [mm] [mm] [kN] [kg]
JDT 42x146 41 109 44 320 2500 8,0
Compet. 44 114 43 330 2500 9,8
JDT 48x152 52 115 56 342 3150 11,4
Compet. 50 124 51,5 364 2900 15,8
Disadvantages
- Longer
- Less BF
- More Weight
Exposed connecting area
sensitive against strokes
Angeled shape
No smooth run on sprocket
and drive area
Protected connecting area
unsensitive against strokes
Round shape
Smooth run on sprocket
and drive area
26.02.2016 37
26.02.2016 38
Stiff vertical link
most dynamic load must be taken by
the horizontal link
about 30% reduction in fatigue life
Flexible vertical link
dynamic load can be taken by the horizontal
and the vertical link
J.D. Theile GmbH & Co. KG, Letmather Straße 26, 58239 Schwerte, Germany
www.jdt.de