DIN 22253 Open Connecting Link

DIN 22253 Open Link produced by TOPONE®, also known as Mining Chain Connectors, Outboard Connector, Mining Chain Connecting Links, Mining Chain Shackles. used for scraper conveyors in underground mining facilities and other industrial conveyors.It is forged from alloy steel containing elements such as Cr and Ni.100% tested before leaving the factory.

DIN 22253 Open Connecting Link
DIN 22253 Open Connecting Link
Introduction

TOPONE® products comply with DIN 22253,PN-G-46696,MT/T71-1997. The surface is shot blasted and can be customized with double holes or single holes.

Parameter

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Dimension

Chain   Size

a

t

c

b

e

(+1/-2)

l1

m

(0/-1)

n

(0/-1)

p

(+1/0)

f

(+1/-0.5)

g

(+1/-1.5)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

14x50

15

(+0.7/-0.5)

50

(+0.8/-0.3)

79   ±1

17   +0.5

78

17.5

(+1/0)

15

32

17

51

29

18x64

19

(+1.0/-0.5)

64

(+0.9/-0.3)

101   ±1

21   +0.5

100

20.5

(+1/0)

19

43

37

55

40

19x64.5

20

(+1.0/-0.5)

64.5

(+0.9/-0.3)

105   ±1

21   +0.5

100

20.5

(+1/0)

20

43

37

55

41

22x86

23

(+1.0/-0.5)

86

(+1.3/-0.4)

132   ±2

25   +1.0

133

24.5

(+1/0)

23

52

44

75

46

24x86

25

(+1.0/-0.5)

86

(+1.3/-0.4)

136   ±2

25   +1.0

133

26

(+1/0)

25

53

44

78

55

26x92

27

(+1.0/-0.5)

92

(+1.4/-0.5)

146   ±2

28    +1.0

141

28

(+1.5/0)

27

58

44

85

56

30x108

32

(+1.0/-0.5)

108

(+1.6/-0.5)

172   ±2

31   +1.0

159

32

(+1.5/0)

32

70

44

100

59



Mechanical Properties

Chain   Size

Test   Force

Breaking   Force

Grade   B

Grade   C

DIN   22253

Grade   B

Grade   C

DIN   22253

(mm)

(KN)

(KN)

(KN)

(KN)

(KN)

(KN)

14x50

135

180

185

170

225

212

18x64

230

300

305

290

370

351

19x64.5

260

325

340

325

405

391

22x86

/

440

456

/

550

525

24x86

410

490

507

510

650

588

26x92

/

/

595

/

/

690

30x108

/

/

750

/

/

869


Standards

!This product is not for overhead lifting. 

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


We follow standards:

Acc. to DIN 22253,PN-G-46696,MT/T71-1997.


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
Our chains are mostly exported to more than 30 countries
both in European and Asian markets.