WORK LOAD LIMITS OF SWR SLINGS USING 6 x 36/FC (1960mpa) 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
ROPE ø
ENDLESS CHOKE
STD. SIZE SOFT EYE
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)
160
0.62
0.83
1.16
1.44
0.83
0.59
0.41
0.55
8
41.4
0.55
0.77
0.78
0.94
160
0.79
1.05
1.47
1.82
1.05
0.74
0.52
0.70
9
52.4
0.70
0.98
0.99
1.19
200
0.97
1.29
1.81
2.24
1.29
0.91
0.65
0.86
10
64.7
0.86
1.21
1.22
1.47
200
1.17
1.57
2.19
2.71
1.57
1.11
0.78
1.04
11
78.3
1.04
1.46
1.47
1.77
200
1.40
1.86
2.60
3.22
1.86
1.31
0.93
1.24
12
93
1.24
1.74
1.75
2.11
260
1.64
2.18
3.05
3.78
2.18
1.54
1.09
1.45
13
109
1.45
2.03
2.05
2.47
260
1.91
2.54
3.56
4.40
2.54
1.79
1.27
1.69
14
127
1.69
2.37
2.39
2.88
260
2.19
2.92
4.09
5.06
2.92
2.06
1.46
1.95
15
146
1.95
2.73
2.74
3.31
260
2.49
3.32
4.65
5.75
3.32
2.35
1.66
2.21
16
166
2.21
3.10
3.12
3.76
300
2.81
3.74
5.24
6.48
3.74
2.64
1.87
2.49
17
187
2.49
3.49
3.52
4.24
300
3.15
4.20
5.88
7.28
4.20
2.97
2.10
2.80
18
210
2.80
3.92
3.95
4.76
300
3.50
4.66
6.52
8.08
4.66
3.29
2.33
3.11
19
233
3.11
4.35
4.38
5.28
300
3.89
5.18
7.25
8.98
5.18
3.66
2.59
3.45
20
259
3.45
4.83
4.87
5.87
300
4.28
5.70
7.98
9.88
5.70
4.03
2.85
3.80
21
285
3.80
5.32
5.36
6.46
300
4.70
6.26
8.76
10.85
6.26
4.42
3.13
4.17
22
313
4.17
5.84
5.88
7.09
5.60
7.46
10.44
12.93
7.46
5.27
3.73
4.97
24
373
4.97
6.96
360
7.01
8.45
6.56
8.74
12.24
15.15
8.74
6.18
4.37
5.83
26
437
5.83
8.16
360
8.22
9.91
7.61
10.14
14.20
17.58
10.14
7.17
5.07
6.76
28
507
6.76
9.46
400
9.53
11.49
8.73
11.64
16.30
20.18
11.64
8.23
5.82
7.76
30
582
7.76
10.86
400
10.94
13.19
9.93
13.24
18.54
22.95
13.24
9.36
6.62
8.83
32
662
8.83
12.36
460
12.45
15.01
11.22
14.96
20.94
25.93
14.96
10.57
7.48
9.97
34
748
9.97
13.96
460
14.06
16.95
12.57
16.76
23.46
29.05
16.76
11.84
8.38
11.17
36
838
11.17
15.64
500
15.75
18.99
15.53
20.70
28.98
35.88
20.70
14.63
10.35
13.80
40
1035
13.80
19.32
600
19.46
23.46
18.78
25.04
35.06
43.40
25.04
17.69
12.52
16.69
44
1252
16.69
23.37
700
23.54
28.38
22.35
29.80
41.72
51.65
29.80
21.06
14.90
19.87
48
1490
19.87
27.81
800
28.01
33.77
26.24
34.98
48.97
60.63
34.98
24.72
17.49
23.32
52
1749
23.32
32.65
1000
32.88
39.64
30.57
40.76
57.06
70.65
40.76
28.80
20.38
27.17
56
2038
27.17
38.04
1100
38.31
46.19
34.92
46.56
65.18
80.70
46.56
32.90
23.28
31.04
60
2328
31.04
43.46
1200
43.77
52.77
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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