12. HOISTING
Keep in mind when using lifting slings
The load bearing capacity of the lifting sling depends on the weight of the load, the
angle of inclination and how big the bending radiuses are. It is absolutely forbidden to
use angles over 60 degrees!
The angle of inclination of the lifting strap is measured as shown in the chart. The load
bearing capacity decreases rapidly as the angle increases.
The loading bearing capacity of the strap is also limited by small bending radiuses. A
strap that has been bent around a rod that has the length of the cable diameter has
only 50% of its original load bearing capacity.
Find the maximum allowable load of the lifting sling before you use it! Keep in
mind the type of sling (lifting chain, lifting wire rope, coated lifting strap or lifting belt),
number of fastening points, fastening method and lifting angle.
Different types of straps have their own loading tables, where you can check
the maximum allowable load.
For example: a direct hoist with a lifting strap that has a marking of 1000 kg. Use of a
tightening knot when the maximum allowable load is 0,8 WLL, i.e. 0,8 x 1000 kg = 800
62 kg.