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NYLON WEB SLINGS
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Sling Angle and Rated Capacity

When selecting a sling to carry a given load, it is important to consider the angle at which the sling is to be used. As an example, one sling in a basket hitch or two slings attached to one crane hook are different applications involving different sling angles. The degree of the angle will determine how much the capacity will be reduced. To determine if a particular sling will have the capacity required, take the angle between the sling leg and the horizontal, then multiply the sling's rating by the factor provided in the accompanying table.

The capacity of a sling will be reduced as the angle from the horizontal is reduced. In the example below, you will see how the 1,000 pound capacity of a sling used in a vertical basket hitch is reduced:

3 Basic Hitches

Sling Capacity Decreases as the Angle Increases

Angles in
Degree
Factor
90 1.000
85 0.996
80 0.985
75 0.966
70 0.940
65 0.906
60 0.866
55 0.819
50 0.766
45 0.707
40 0.643
35 0.574
30 0.500
 


Chemical Environment Data
Acids
Alcohols
Alde-
hydes
Strong
Alkalis
Bleaching
Agents
Dry
Cleaning
Solvents
Ethers
Halo-
genated
Hydro-
Carbons
Hydro-
Carbons
Ketones
Oils
Crude
Oils
Lubri-
cating
Soap &
Deter-
gents
Water
& Sea-
water
Weak
Alka-
lis
nylon
NO
OK
OK
OK
NO
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
polyester
*
OK
NO
**
OK
OK
NO
OK
OK
OK
OK
OK
OK
OK
OK

* Disintergrated by concentrated sulfuric acid         ** Degraded by strong alkalis at elevated temperatures

CAUTION DO NOT EXCEED RATED CAPACITIES
 
   
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