Dimensioning of Chain Slings

Calculation of working load limit (WLL) for chain slings
When exact information about weight, lifting angle and  positon of center of gravity exist, you're allowed to calculate the working load limit as followed:

2-leg sling
WLL (ton) = 2 x WLL for single leg sling x cos ß.

3-4-leg sling
WLL (ton) = 3 x WLL for single leg sling x cos ß.

Note: If the load is well divided on all 4 legs in a sling the following formula can be used in exeptional case:

WLL (ton) = 4 x WLL for single leg sling x cos ß.

ß = the legs angle against the vertical surface.

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