GRADE 100
Grade 100 Chain Sling Components
DANGER: Overhead lifting presents a very real danger of severe injury or loss of life if lifting equipment is not used properly. Please read and understand all of these instructions prior to using any lifting sling or sling assembly. Sling should only be used by qualified persons who are responsible for the sling selection, inspection and use.
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WORKING LOAD LIMITS IN TONNES acc. to PAS 1061 |
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Load Factor |
1 |
1.4 |
1 |
2.1 |
1.5 |
1.6 |
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For Chain |
tonnes |
β 0 - 45 ° |
45° - 60 ° |
β 0 - 45 ° |
45° - 60 ° |
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Size mm |
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α 0 - 90 ° |
90° - 120° |
α 0 - 90 ° |
90° - 120° |
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6 |
1.4 |
2.0 |
1.4 |
2.9 |
2.1 |
2.2 |
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7 |
1.9 |
2.7 |
1.9 |
4.0 |
2.9 |
3.0 |
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8 |
2.5 |
3.5 |
2.5 |
5.3 |
3.8 |
4.0 |
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10 |
4.0 |
5.6 |
4.0 |
8.4 |
6.0 |
6.4 |
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13 |
6.7 |
9.4 |
6.7 |
14.1 |
10.1 |
10.7 |
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16 |
10.0 |
14.0 |
10.0 |
21.0 |
15.0 |
16.0 |
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18 |
12.5 |
17.5 |
12.5 |
26.2 |
19.0 |
20.0 |
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19 |
14.0 |
20.0 |
14.0 |
30.0 |
21.2 |
22.4 |
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20 |
16.0 |
22.4 |
16.0 |
33.6 |
24.0 |
25.6 |
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22 |
19.0 |
26.5 |
19.0 |
39.9 |
28.5 |
30.4 |
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26 |
26.5 |
37.1 |
26.5 |
55.7 |
39.8 |
42.4 |
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32 |
40.0 |
56.0 |
40.0 |
84.0 |
60.0 |
64.0 |
Safety factor 4:1 above limits are valid for standard use and equally loaded slings. Properly use and maintaince of your chain slings will give long life and enable you to carry out your lifting operations efficiently and safely.
Warning: Never exceed a vertical sling angle of 60°
SAFE USE
- Never load in excess of the rated capacity for the application. Keep a record of all slings in use.
- User should remove all twists from a chain leg before lifting and, should never knot a chain. Always use shortening hook or clutch when chain slings should be shortened.
- Always inspect to insure that chain is free from damage or wear before use. Always inspect all sling components prior to each use.
- Ensure that chain is protected from any sharp corners on the load.
- Ensure that the master link articulates freely on the hook of the crane or other lifting appliance. Never tip load hooks. The load should always be supported correctly in the bowl of the hook.
- Always use the correct size sling for the load, allowing for the included angle and the possibility of unequal loading.
- Personnel must keep all body parts from between the sling and the load, and from between the sling and the crane/ hoist hook. Persons shall never ride the chain sling/rope sling or web sling or the load during lifting or while suspended. Persons must stand clear of all loads while lifting or while suspended. During lifting, with or without the load, personnel must be alert for possible snagging of the load or the chain sling.
MAINTENANCE
- A thorough examination should be carried out by a competent person at intervals at least every year or more frequently according to statutory regulations, type of use and past records.
- Chains with bent links or with cracks or gouges in the link should be replaced , as should deformed components such as bent master links , deformed hooks and any fittings showing signs of damage.
- Chain and components wear should never exceed 10%of the original dimensions.
- Once a chain sling has been overloaded it must be taken out of service.
- Store chain slings on a properly designed rack. They should not be left lying on the floor where they may suffer