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Round Link Steel Chains

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Round link steel chains are commonplace in Biomass and EFW primarily on ash handling. Their simple and open construction make them effective in such environments. The main standard is DIN 22252. The chains are available in two categories, a through hardening grade (TH) for high strength for long conveyors with high load and a case hardened grade (CH) for best wear resistance. Sprockets with petal style teeth covering all configurations are also produced in house.

Round Link Chains DIN 22252-2

Round Link Chains DIN 22252-2

Round Link Steel Chains

Nominal size

Diameter

Pitch

Width

Gauge Length

d

Tolerance

t

Tolerance

Inside b1 min

Outside b2 max

5 x t

Tolerance

d x t

mm

14 x 50

14

±0.4

50

±0.5

17

48

250

±1.0

18 x 64

18

±0.5

64

±0.6

21

60

320

±1.0

22 x 86

22

±0.7

86

±0.9

26

73

430

±1.0

26 x 92

26

±0.8

92

±0.9

30

85

460

±1.0

30 x 108

30

±0.9

108

±1.1

34

97

540

±1.2

34 x 126

34

±1.0

126

±1.3

38

109

630

±1.3

Through Hardened TH

Round Link Steel Chains

Case Hardened CH

Nominal size

Reference number

Proof load

Breaking Load

Reference number

Proof load

Breaking Load

Weight

d x t

TH series

min. kN

CH series

max. kN

kg/m

14 x 50

38/14X50/TH

185

246

38/14X50/CH

89

148

4

18 x 64

38/18X64/TH

305

407

38/18X64/CH

165

275

6.6

22 x 86

38/22X86/TH

456

608

38/22X86/CH

220

365

9.5

26 x 92

38/26X92/TH

637

850

38/26X92/CH

308

510

14

30 x 108

38/30X108/TH

848

1130

38/30X108/CH

400

680

18

34 x 126

38/34X126/TH

1090

1450

38/34X126/CH

425

710

22.7

TH grade: 23 MnNiCrMo5-4 (DIN 17115) as DIN 22252-2.
CH Grade: CrNi/CrMo options High surface hardness 64Hrc carburising depths 0.1-0.14 diameter.

Twin outboard chain systems DIN 22253

Flight bar connectors with single or double hole are available for use in conjunction with chain for twin strand operation. Fabricated or forged flight bars are also produced to customer standards.

Twin outboard chain systems DIN 22253

Twin outboard chain systems

Nominal
size

Reference number

A

B

C

D

E

E1

F

G

H

T

d

Weight

PL

WP

d x t

Padless PL

Wear Pad WP

mm

kg

14 x 50

40/14X50

40/14X50/WP

50

51

19

32

14

29

27

78

18

15

17

0.46

0.7

18 x 64

40/18X64

40/18X64/WP

64

55

22

43

18

40

45

100

37

19

21

1

1.25

22 x 86

40/22X86

40/22X86/WP

86

75

26

52

22

46

58

132

44

23

25

1.6

2.6

26 x 92

40/26X92

40/26X92/WP

92

78

30

58

26

56

59

147

44

27

28

2.8

3.8

30 x 108

40/30X108

40/30X108/WP

108

96

34

70

30

59

60

172

44

32

31

4

5.2

34 x 126

40/34X126

40/34X126/WP

126

110

38

70

34

35

65

198

52

36

37

5.8

7.3

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