DIN 22252 Round Link Mining Chain

TOPONE® uses DIN 22252 standard to produce round steel chain links for continuous conveyors and excavation equipment in the mining industry. The steel used to produce the welded round link chain contains alloy elements such as Cr Ni Mo. It can meet Grade D (1050MPa), Grade C++ (900MPa), and Grade C (800MPa).Suitable for Armored Face Conveyors (AFC), Beam Stage Loaders (BSL), road header machines, coal plows and other equipment that requires this type of chain.

DIN 22252 Round Link Mining Chain
Introduction

TOPONE® can provide round link alloy steel chains in accordance with DIN 22252 or PN-G-46701 or GB/T-12718 or GOST 25996 standard.

We can provide any surface hardness (carbonitriding or special tempering heat treatment,。Min,38 HRC,Max.64 HRC) to meet the underground mining needs of high hardness geology.

It is also available with chains with a strength of 1150MPa (Grade 110 chain). It is particularly suitable for coal seams with high economic value, and can greatly increase the amount of coal passing, thereby improving production efficiency.

Parameter

MEDIUM LINK CHAIN


Dimension

Chain   Size

d x p

Diameter

d

Pitch

P

b1   min.

b2   max.

Weight

(mm)

(mm)

(mm)

(mm)

(mm)

(kg/m)

14 x 50

14 ±0.4

50 ±0.5

17

48

4.0

18 x 64

18 ±0.5

64 ±0.6

21

60

6.6

19 x 64.5

19 ±0.6

64.5 ±0.6

22

63

7.4

22 x 86

22 ±0.7

86 ±0.9

26

73

9.5

24 x 86

24 ±0.7

86 ±0.9

28

79

11.6

24 x 87.5

24 ±0.7

87.5 ±0.9

28

79

11.5

26 x 92

26 ±0.8

92 ±0.9

30

85

13.7

30 x 108

30 ±0.9

108 ±1.1

34

97

18.0

34 x 126

34 ±1.0

126 ±1.3

38

110

22.7

38 x 126

38 ±1.1

126 ±1.4

42

121

30.1

38 x 137

38 ±1.1

137 ±1.4

42

121

29.0

42 x 137

42 ±1.1

137 ±1.4

48

137

36.9

42 x 146

42 ±1.1

146 ±1.5

48

137

36.0

Notice:

  • l     All anti-corrosive coatings decrease the   chain mechanical properties

  • l   Other   sizes can be customized according to customer requirements

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Paired Long Chain: Measuring length and Limit Tolerance chart

Chain Size

Measuring length

Chain Length

Limit Tolerance

d x p

Link Quantity

n

n x p

Limit Tolerance

L ≤ 5000

L > 5000

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

22x86

11

946

±1.5

+2 / -0

+0.0004xl /-0

24x86

11

946

24x87.5

11

962.5

26x92

9

828

30x108

9

972

34x126

7

882

38x137

7

959

42x137

5

685

The number of chains must be an odd number



Paired Short Chain: Measuring length and Limit Tolerance chart

Chain Size

d x p

Link Quantity  n

Width

Radius

5

7

9

11

13

15

Inside

Outside

Measuring length  l

b1

b2

r

+2/-0

+2/-0

±1

±1

±1

±1

Min.

Max.

+2/-0

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

14x50

/

/

450

550

650

750

17

48

22

18x64

/

448

576

704

832

960

22

61

28.5

19x64.5

/

451.5

580.5

709.5

838.5

967.5

23

65

30.5

22x86

430

602

774

946

/

/

27

75

35.5

24x86

/

/

30

82

39

24x87.5

437.5

612.5

787.5

962.5

/

/

30

82

39

26x92

460

644

828

1012

/

/

32

88

42

30x108

540

756

972

/

/

/

37

102

49

34x126

630

882

1134

/

/

/

42

116

56




Mechanical   Properties

Chain   Size

d x p

Chain   Grade

Test   Force

Breaking

Force

min.

Elongation   at test force

max.

Elongation

at   breaking force

min.

Deflection

f

min.

Fatigue

Resistance

min.

(mm)

(KN)

(KN)

(%)

(%)

(mm)

(cycles)

14x50

B

150

190

1.4

14

14

50000

C

200

250

1.6

14

14

70000

C++

200

280

1.6

18

14

90000

D

250

310

1.9

16

14

90000

18x64

B

260

320

1.4

14

18

50000

C

330

410

1.6

14

18

70000

C++

330

460

1.6

18

18

90000

D

410

510

1.9

16

18

90000

19x64

19x64.5

B

290

360

1.4

14

19

50000

C

360

450

1.6

14

19

70000

C++

360

510

1.6

18

19

90000

D

450

565

1.9

16

19

90000

22x86

B

380

490

1.4

14

22

50000

C

490

610

1.6

14

22

70000

C++

490

680

1.6

18

22

90000

D

610

760

1.9

16

22

90000

24x86

24x87.5

B

460

570

1.4

14

24

50000

C

580

720

1.6

14

24

70000

C++

580

815

1.6

18

24

90000

D

720

900

1.9

16

24

90000

26x92

B

540

670

1.4

14

26

50000

C

640

850

1.6

14

26

70000

C++

700

960

1.6

18

26

90000

D

790

1060

1.9

16

26

90000

30x108

C

850

1130

1.6

14

30

70000

C++

950

1280

1.6

18

30

90000

D

1050

1400

1.9

16

30

90000

34x126

C

1080

1450

1.6

14

34

70000

C++

1200

1650

1.6

18

34

90000

D

1350

1800

1.9

16

34

90000

38x126

38x137

C

1360

1810

1.6

14

38

70000

C++

1500

2040

1.6

18

38

90000

D

1700

2270

1.9

16

38

90000

42x137

42x146

C

1660

2220

1.6

14

42

70000

C++

1800

2500

1.6

18

42

90000

D

2070

2770

1.9

16

42

90000


Standards

!This product is not recommended for overhead lifting. 

!Any surface coating will affect the mechanical properties of the chain.Please ask staff for details.

Fatigue resistance T [cycles] and impact force KV [J] according to DIN 22252 standard

!Enhanced performance chains are not recommended for use in harsh, corrosive environments, as pitting and friction martensite may lead to operational failures.

We follow standards:

DIN 17115

Acc. to DIN 22252 or PN-G-46701 or GB/T-12718 or GOST 25996 

DIN 50100

DIN EN ISO 148

DIN EN ISO 6506

Optional surface treatment: natural black, powder coating, black electrophoresis, electro-galvanizing, hot-dip galvanizing, Dacromet.


 


Ambient temperature during use:

Min.: -40 ℃

Max.: 200 ℃

If the application scenario exceeds or is lower than the recommended operating temperature, please consult the staff to see if it is feasible.

Q & A
I don't see the size I want in the datasheet, can I get a custom size?
Yes, please contact our sales. They will work with our technicians to come up with a solution for you based on your application scenario, which is usually free!
How is your hardness distributed in the chain?
We allow different hardnesses in a single link, that a hard crown and a lower hardness plasticized leg.
Which anti-corrosion surface is suitable for me? Because the working environment of longwall mining is harsh and corrosive.
We have many anti-corrosion methods to choose from, such as anti-corrosion oil, electrostatic spraying, hot-dip galvanizing. Please note that any anti-corrosion will affect the mechanical properties of the chain.
What is the normal surface of your chain delivery?
Usually natural, dry, black condition.
Can I use it for Drag chain conveyors, Haulage Systems, Submerged Ash handling conveyors, Dredge Conveyors, Scrapper Coal Feeders, Drag Chain Feeder?
Yes, we can provide absolutely calibrated and matched chains. This is often applied to power plant slag removal, cement plant material lifting, etc.
Our chains are mostly exported to more than 30 countries
both in European and Asian markets.