Round steel link chain making for 30+ years

SHANGHAI CHIGONG INDUSTRIAL CO., LTD

(round steel link chain manufacturer)

flat link chain

Short Description:

Category: flat link chain, mining flat link chain,mining round link chain,DIN 22255 flat link chains for usein continuous conveyors in mining,flight bar chain system, flat type chains,super flat type chains, double flat type chains


Product Detail

Product Tags

Category

Flat link chain, mining flat link chain,mining round link chain,DIN 22255 flat link chains for usein continuous conveyors in mining,flight bar chain system, flat type chains,super flat type chains, double flat type chains

Application

Armored Face Conveyors (AFC),Beam Stage Loaders (BSL),road header machines

1

Flat type link chain was firstly introduced into mining industry by German chain making company back in 1985. The flat link chain consists of round links (DIN 22252) but every second link (the vertical link) is flat link which straight sides are of flattened finish per DIN 22255. Due to the less outer width of flat link (vertical) than round link (horizontal), the full flat link chain height is thus as lower as flat link size.

SCIC flat links are of forged making, and from the same material as round links.

Dimensionally, the flattened straight cross section area is larger than that of round link. When the full flat link chain goes through designed heat-treatment and final inspection & testing, the mechanical properties of flat links are well guaranteed per designated chain size & grade.

SCIC flat link chain is made according to China MT/T-929 standard and factory Technical Requirements, as well as to DIN 22255 or clients specs (which is to be specially agreed).

SCIC flat link chain is used for Armored Face Conveyors (AFC), Beam Stage Loaders (BSL), road header machines and other equipment that requires this type of chain.

Anti-corrosive coatings (e.g., hot dipped galvanization) result in decreased chain mechanical properties, therefore the application of any anti-corrosive coatings shall subject to order agreement between buyer and SCIC.

Figure 1: flat link chain

1

Table 1: flat link chain dimensions

chain size
d x t

diameter
d (mm)

width
e (mm)
(max.)

pitch
t (mm)

round link width (mm)

flat link width (mm)

unit weight
kg/m (~)

nominal

tolerance

nominal

tolerance

inner  b1
(min.)

outer  b2
(max.)

inner  b3
(min.)

outer  b4
(max.)

26 x 92

26

 ± 0.8

27

92

 ± 0.9

30

86

30

74

12.8

30 x 108

30

 ± 0.9

33

108

 ± 1.0

34

98

34

86

18.0

34 x 126

34

 ± 1.0

37

126

 ± 1.2

38

109

38

97

22.7

38 x 126

38

 ± 1.1

42

126

 ± 1.4

42

121

42

110

29.4

38 x 137

38

 ± 1.1

42

137

 ± 1.4

42

121

42

110

28.5

38 x 146

38

 ± 1.1

42

146

 ± 1.4

42

121

42

110

28.4

42 x 146

42

 ± 1.3

46

146

 ± 1.5

46

135

46

115

34.2

42 x 152

42

 ± 1.3

46

152

 ± 1.5

46

135

46

115

35.0

notes: larger size chain available upon inquiry.
          Link size (d) to be measured at link straight opposite link weld.
          Link width to be measured off the link weld.

Table 2: flat link chain mechanical properties

chain size
d x t
(mm)

chain grade

test force
(kN)

elongation under test force
% (max.)

breaking force
(kN)

elongation at fracture
% (min.)

minimum deflection
(mm)

26 x 92

S

540

1.4

670

11

26

SC

680

1.6

850

30 x 108

S

710

1.4

890

11

30

SC

900

1.6

1130

34 x 126

S

900

1.4

1140

11

34

SC

1160

1.6

1450

38 x 126
38 x 137
38 x 146

S

1130

1.4

1420

11

38

SC

1450

1.6

1810

42 x 146
42 x 152

S

1390

1.4

1740

11

42

SC

1770

1.6

2220

note: deflection not applicable to forged flat link


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