Crane chain is a kind of hoisting chain for lifting heavy objects. Hoisting chain length can be adjusted according to different lifting heights. Hoisting chain materials generally use steel material, in view of the chemical composition, the mechanical and heat treatment.
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Hoisting chain working load can be divided into the following three categories:
1 Working load (or allowable load): this load is chain normal operating load.
2 Testing load: the whole chain will be under this load through the tensile strength testing.
3 Breaking load: extracting three pitches from a chain for the breaking test, this load is the min load of the loads to break the three pitches.
Hoisting chain tensile strength relates to the material we used, but the minimum should be 35 kg/cm2. Usually welding cross-section tensile strength is lower 25-30% than other sections.
G80 high strength hoisting chain specifications:
|
CHAIN NO.
|
SIZE
mm
|
WIDTH
|
AVERAGE WEIGHT
kg/m
|
ULTIMATE TENSILE STRENTH
t
|
TESTING LOAD
KN
|
MIN BREAKING LOAD
KN
|
|
MIN INNER WIDTH
mm
|
MAX OUTER WIDTH
mm
|
|
LYJ6-18
|
6×18
|
7.5
|
21
|
0.79
|
1.1
|
27
|
45.2
|
|
LYJ7-21
|
7×21
|
9
|
24.5
|
1.07
|
1.5
|
37
|
61.6
|
|
LYJ8-24
|
8×24
|
10
|
28
|
1.38
|
2
|
48
|
80.4
|
|
LYJ10-30
|
10×30
|
12.5
|
35
|
2.2
|
3.2
|
76
|
125
|
|
LYJ11-43
|
11×43
|
12.6
|
36.5
|
2.33
|
3.8
|
92
|
154
|
|
LYJ12-36
|
12×36
|
15
|
42
|
3.1
|
4.6
|
109
|
181
|
|
LYJ12.5-38
|
12.5×38
|
15.5
|
42.2
|
3.3
|
4.9
|
117
|
196
|
|
LYJ13-39
|
13×39
|
16.3
|
46
|
3.8
|
5
|
128
|
214
|
|
LYJ14-42
|
14×42
|
18
|
49
|
4.13
|
6.3
|
150
|
250
|
|
LYJ14-50
|
14×50
|
17
|
48
|
4
|
6.3
|
150
|
250
|
|
LYJ15-46
|
15×46
|
20
|
52
|
5.17
|
7
|
168
|
280
|
|
LYJ16-48
|
16×48
|
20
|
56
|
5.63
|
8
|
192
|
320
|
|
LYJ16-49
|
16×49
|
24.5
|
59.5
|
5.71
|
8
|
192
|
320
|
|
LYJ16-64
|
16×64
|
23.9
|
58.9
|
5.11
|
8
|
192
|
320
|
|
LYJ18-54
|
18×54
|
23
|
63
|
6.85
|
10
|
246
|
410
|
|
LYJ18-64
|
18×64
|
21
|
60
|
6.6
|
10
|
246
|
410
|
|
LYJ19-57
|
19×57
|
23.7
|
63.2
|
7.7
|
11.3
|
270
|
450
|
|
LYJ20-60
|
20×60
|
25
|
70
|
8.6
|
12.5
|
300
|
500
|
|
LYJ22-65
|
22×65
|
28
|
74.2
|
10.7
|
15.3
|
366
|
610
|
|
LYJ22-66
|
22×66
|
28
|
77
|
10.2
|
15.3
|
366
|
610
|
|
LYJ22-86
|
22×86
|
26
|
74
|
9.5
|
15.3
|
366
|
610
|
|
LYJ24-72
|
24×72
|
32
|
82
|
12.78
|
18
|
432
|
720
|
|
LYJ24-86
|
24×86
|
28
|
79
|
11.6
|
18
|
432
|
720
|
|
LYJ26-78
|
26×78
|
35
|
91
|
14.87
|
21.3
|
510
|
850
|
|
LYJ26-92
|
26×92
|
30
|
86
|
13.7
|
21.3
|
510
|
850
|
|
LYJ30-90
|
30×90
|
38
|
105
|
19.6
|
28.3
|
678
|
1130
|
|
LYJ30-108
|
30×108
|
34
|
98
|
18
|
28.3
|
678
|
1130
|
|
LYJ32-96
|
32×96
|
40
|
106
|
22.29
|
32.2
|
772
|
1286
|
|
LYJ34-126
|
34×126
|
38
|
109
|
22.7
|
36.3
|
870
|
1450
|
|
LYJ34-102
|
34×102
|
46.5
|
121.5
|
25.5
|
36.3
|
870
|
1450
|
|
LYJ36-108
|
36×108
|
49.5
|
128.5
|
31
|
40.7
|
978
|
1630
|
|
LYJ38-137
|
38×137
|
42
|
121
|
29
|
45.3
|
1086
|
1810
|
|
LYJ38-114
|
38×114
|
52
|
136
|
32
|
45.3
|
1086
|
1810
|
|
LYJ42-126
|
42×126
|
55.5
|
144.5
|
38.6
|
55.4
|
1332
|
2200
|