High Strength Steel Round Link Mining Chain
Product Description:
High strength steel round link mining chains is manufactured accordingt to standard GB T 12718-2009. It has many applications, such sa scraper conveyer, loader conveyor, cantilever excavator, coal planer，shearer and other mechanical chain.
It is not for lifting chain and hanging chain.
Drawing and Parameters of High Strength Steel Round Link Mining Chain:
Straight side
diameter of
chain link
d
Pitch
P
Width
(mm)
Nominal Arc
Radius
r
Weld Size (mm)
Weight
(mm)
(mm)
Inner
width
Outer
width
(mm)
Diameter
d1
Length
e
(kg/m)
10
40
12
34
15
10.8
7.1
1.9
14
50
17
48
22
15
10
4.0
18
64
21
60
28
19.5
13
6.6
22
86
26
74
34
23.5
15.5
9.5
24
86
28
79
37
26
17
11.6
26
92
30
86
40
28
18
13.7
30
108
34
98
46
32.5
21
18.0
34
126
38
109
52
36.5
23.8
22.7
38
137
42
121
58
41
27
29
42
152
46
133
64
45
30
35.3
Note:
1. The straight side diameter of the chain link refers to the average value of the measured values of the same cross-section in two directions perpendicular to each other.
2. The minimum inner width a and the maximum outer width b of the link are measured on the width of the straight side outside the welding part.
3. The arc radius r is measured in the arc area between 1.2d and 120°.
|
Mechanical Performance |
Chain Rates |
||
|
B |
C |
D |
|
|
Minimum breaking load stress(N/mm2) |
630 |
800 |
1000 |
|
Experimental load stress(N/mm2) |
500 |
640 |
800 |
|
Ratio of Minimum breaking load stress and experimental load stress |
80 |
80 |
80 |
|
Maximum elongation Rate at test load |
1.4 |
1.6 |
1.9 |
|
Minimum elongation Rate at test load |
12.0 |
12.0 |
12.0 |
|
Note:Ratio of Minimum breaking load stress and experimental load stress of 26×92 above sizes’ Rate C and D round link chain can be lowered from 80% to 75%. |
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