WORK LOAD LIMITS OF SWR SLINGS USING 6 x 36/FC (1770mpa) Compiled in compliance with SANS7531 : 1987 AND ISO 7531 : 1987 & DMR 18(10)(c)(iii) of 2015
NOMINAL BREAK FORCE
1 LEG
2 LEGS
3 / 4 LEGS
ENDLESS CHOKE
STD. SIZE SOFT EYE
ROPE ø
CHOKE HALSHING BASKET
60 0
90 0
120 0
REEVING 60 0
90 0
120 0
0 0
(kN)
(t)
(t)
(t)
(t)
(t)
(t)
(t)
(t)
(t)
(t)
(t)
(t)
(mm)
(mm)
0.56
0.75
1.05
1.30
0.75
0.53
0.37
0.50
160
8
37.4
0.50
0.70
0.70
0.85
0.71
0.95
1.32
1.64
0.95
0.67
0.47
0.63
160
9
47.3
0.63
0.88
0.89
1.07
0.88
1.17
1.64
2.02
1.17
0.83
0.58
0.78
200
10
58.4
0.78
1.09
1.10
1.32
1.06
1.41
1.98
2.45
1.41
1.00
0.71
0.94
200
11
70.7
0.94
1.32
1.33
1.60
1.26
1.68
2.35
2.91
1.68
1.19
0.84
1.12
200
12
84
1.12
1.57
1.58
1.90
1.98
2.77
3.43
1.98
1.40
0.99
1.32
260
13
99
1.32
1.85
1.49
1.86
2.24
2.28
3.19
3.95
2.28
1.61
1.14
1.52
260
14
114
1.52
2.13
1.71
2.14
2.58
2.62
3.67
4.54
2.62
1.85
1.31
1.75
260
15
131
1.75
2.45
1.97
2.46
2.97
3.00
4.20
5.20
3.00
2.12
1.50
2.00
260
16
150
2.00
2.80
2.25
2.82
3.40
3.38
4.73
5.86
3.38
2.39
1.69
2.25
300
17
169
2.25
3.15
2.54
3.18
3.83
3.78
5.29
6.55
3.78
2.67
1.89
2.52
300
18
189
2.52
3.53
2.84
3.55
4.28
4.22
5.91
7.31
4.22
2.98
2.11
2.81
300
19
211
2.81
3.94
3.17
3.97
4.78
4.68
6.55
8.11
4.68
3.31
2.34
3.12
300
20
234
3.12
4.37
3.51
4.40
5.30
5.16
7.22
8.94
5.16
3.65
2.58
3.44
300
21
258
3.44
4.82
3.87
4.85
5.85
5.66
7.92
9.81
5.66
4.00
2.83
3.77
300
22
283
3.77
5.28
4.25
5.32
6.41
6.72
9.41
11.65
6.72
4.75
3.36
4.48
360
24
336
4.48
6.27
5.04
6.32
7.62
7.90
11.06
13.69
7.90
5.58
3.95
5.27
360
26
395
5.27
7.37
5.93
7.43
8.95
9.16
12.82
15.88
9.16
6.47
4.58
6.11
400
28
458
6.11
8.55
6.87
8.61
10.38
10.52
14.73
18.23
10.52
7.43
5.26
7.01
400
30
526
7.01
9.82
7.89
9.89
11.92
11.96
16.74
20.73
11.96
8.45
5.98
7.97
460
32
598
7.97
11.16
8.97
11.24
13.55
13.50
18.90
23.40
13.50
9.54
6.75
9.00
460
34
675
9.00
12.60
10.13
12.69
15.30
15.14
21.20
26.24
15.14
10.70
7.57
10.09
500
36
757
10.09
14.13
11.36
14.23
17.16
18.70
26.18
32.41
18.70
13.21
9.35
12.47
600
40
935
12.47
17.45
14.03
17.58
21.19
22.62
31.67
39.21
22.62
15.98
11.31
15.08
700
44
1131
15.08
21.11
16.97
21.26
25.64
26.92
37.69
46.66
26.92
19.02
13.46
17.95
800
48
1346
17.95
25.13
20.19
25.30
30.51
31.58
44.21
54.74
31.58
22.32
15.79
21.05
1000
52
1579
21.05
29.47
23.69
29.69
35.79
36.64
51.30
63.51
36.64
25.89
18.32
24.43
1100
56
1832
24.43
34.20
27.48
34.44
41.53
42.06
58.88
72.90
42.06
29.72
21.03
28.04
1200
60
2103
28.04
39.26
31.55
39.54
47.67
47.80
66.92
82.85
47.80
33.78
23.90
31.87
1500
64
2390
31.87
44.61
35.85
44.93
54.17
57.20
80.08
99.15
57.20
40.42
28.60
38.13
1500
70
2860
38.13
53.39
42.90
53.77
64.83
67.40
94.36
116.83
67.40
47.63
33.70
44.93
1500
76
3370
44.93
62.91
50.55
63.36
76.39
LOAD FACTOR
-
-
1.00
0.75
1.50
1.41
1.70
1.40
1.00
1.06
2.60
2.10
1.50
1.50
-
Factor of Safety 6:1 Factor of Safety (Endless Choke) 8:1
For SWR slings 6 x 36 FC c/w ferrule secured eye termination made to SANS7531 : 1987 specifications “Uniform load” method calculation is used throughout. A termination efficiency of 90% is assumed.
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