Safe Working Load of Single Leg Chain Sling
& Dimensions of
Chain Sling Links as per IS:2760-1984 |
| |
Working Load
Limit (Tonnes) |
Master Link
d1 |
Suspension
o-Ring d3 |
Joining
Link d2 |
Normal
Size Dn |
L
GR-30 |
M
GR-
40 |
S
GR-63 |
T
GR-
80 |
Single
Leg |
Double
Leg |
Triple/
Four
Leg |
Single
Leg |
Double
Leg |
Triple/
Four
Leg |
|
6 |
0.5 |
0.63 |
1.0 |
1.25 |
12 |
16 |
20 |
14 |
20 |
25 |
8 |
|
7.1 |
0.63 |
0.80 |
1.25 |
1.6 |
12 |
16 |
22 |
16 |
20 |
25 |
8 |
|
8.0 |
0.80 |
1.0 |
1.6 |
2.0 |
16 |
20 |
22 |
20 |
25 |
28 |
10 |
|
9.0 |
1.0 |
1.25 |
2.0 |
2.5 |
16 |
22 |
25 |
20 |
25 |
32 |
10 |
|
10.0 |
1.25 |
1.6 |
2.5 |
3.2 |
16 |
22 |
28 |
20 |
28 |
36 |
12 |
|
11 |
1.6 |
2.0 |
3.2 |
4.0 |
20 |
25 |
32 |
25 |
32 |
36 |
14 |
|
12 |
2.0 |
2.5 |
4.0 |
5.0 |
22 |
28 |
32 |
25 |
36 |
40 |
14 |
|
14 |
2.5 |
3.2 |
5.0 |
6.3 |
22 |
32 |
45 |
28 |
36 |
40 |
14 |
|
16 |
3.2 |
4.0 |
6.3 |
8.0 |
25 |
40 |
45 |
32 |
45 |
56 |
18 |
|
18 |
4.0 |
5.0 |
8.0 |
10.0 |
28 |
45 |
50 |
36 |
50 |
63 |
20 |
|
20 |
5.0 |
6.3 |
10.0 |
12.5 |
32 |
45 |
50 |
36 |
56 |
63 |
22 |
|
22 |
6.3 |
8.0 |
12.5 |
16.0 |
40 |
50 |
56 |
45 |
63 |
80 |
25 |
|
25 |
8.0 |
10.0 |
16.0 |
20.0 |
45 |
50 |
63 |
50 |
63 |
80 |
28 |
|
28 |
10.0 |
12.5 |
20.0 |
25.0 |
45 |
56 |
80 |
56 |
80 |
90 |
32 |
|
32 |
12.5 |
16.0 |
25.0 |
32.0 |
50 |
63 |
80 |
63 |
80 |
- |
36 |
|
36 |
16.0 |
20.0 |
32.0 |
40.0 |
50 |
80 |
90 |
63 |
90 |
- |
40 |
|
40 |
20.0 |
25.0 |
40.0 |
50.0 |
56 |
80 |
- |
80 |
- |
- |
45 |
|
45 |
25.0 |
32.0 |
50.0 |
63.0 |
63 |
90 |
- |
80 |
- |
- |
50 |
|
|
|
 |
|
Master Link A |
Joining Links |
O-Rings |
Nominal
Size d1 |
Pitch
l1 |
Width
b1 |
Nominal
Size d2 |
Pitch
l2 |
Width
b2 |
Nominal
Size d3 |
Inside
Dia D |
|
12 |
95 |
54 |
7 |
30 |
16 |
14 |
95 |
|
16 |
95 |
54 |
10 |
40 |
20 |
16 |
95 |
|
20 |
135 |
75 |
12 |
60 |
30 |
20 |
95 |
|
22 |
135 |
75 |
14 |
70 |
35 |
25 |
135 |
|
25 |
135 |
75 |
16 |
80 |
40 |
28 |
135 |
|
28 |
160 |
90 |
18 |
80 |
40 |
32 |
135 |
|
32 |
160 |
90 |
20 |
100 |
50 |
36 |
160 |
|
40 |
200 |
110 |
22 |
110 |
55 |
40 |
160 |
|
45 |
250 |
125 |
25 |
120 |
60 |
45 |
200 |
|
50 |
250 |
125 |
28 |
120 |
60 |
50 |
250 |
|
56 |
275 |
140 |
32 |
140 |
70 |
56 |
250 |
|
63 |
325 |
165 |
36 |
160 |
80 |
63 |
250 |
|
80 |
360 |
200 |
40 |
180 |
90 |
80 |
325 |
|
90 |
380 |
220 |
45 |
200 |
100 |
90 |
365 |
|
- |
- |
- |
50 |
220 |
110 |
- |
- |
|
Chain slings
offer years of service and exceptional versatility, as well as
immense adjustability. Many different types of chain slings are available
and
slings can be sized to fit different lifts by using fittings that allow
for
adjustment.
The most frequently used type of chain slings are pictured here.
PRECAUTIONS FOR CARE & SAFE USE -- Although chain slings are designed
for rugged, lasting service, precautions should be observed to extend the
product's life. Certain hazards are inherent in the operation of chain
slings
and users must exercise care and common sense to ensure a safe working
environment.
Please practice the following safe work rules:
* Never exceed the working load limit of a
chain sling.
* All fittings and attachments must have a working load limit (WLL) equal
to
or greater than that of the chain; if not, the assembly must
be rated at
the WLL of the weakest component.
* Do not rest or dump load on chain.
* Remove all twists, knots or kinks before lifting.
* Seat load properly within throat opening and centered in bowl of the
hook.
* Balance load to avoid undue stress on one leg of multi-leg slings.
* Never bounce, jerk or shockload a sling when lifting or lowering items.
* Remove slack by slowly applying the load to the chain.
* Use pads around sharp corners.
* Never force or hammer hooks or chain into position.
* Never anneal alloy chain slings.
* Do not use in acid solutions.
* Avoid extreme temperatures (under 20 degrees F or over 350 degrees F).
* Clean and inspect chain slings regularly.
* Protect chain from corrosion.
* Store chain slings in a clean, dry area, preferably by hanging on racks. |
