Heavy-Lift Sling Working Load Limit by Hitch & Angle

Legs are assumed to share the load equally, which is only true for two legs on a symmetric load. With three or four legs on a rigid load, two legs can take everything while the others hang slack, and standard practice is therefore to rate four-leg assemblies as though only two are carrying. The load is also treated as static: any snatch, swing or sudden stop multiplies the tension well beyond what is shown. Edge contact, knots, damage and elevated temperature all reduce capacity further and none appear here. **This is a decision-support estimate only.** Lifting operations are governed by law and by standards such as ASME B30.9 and EN 1492, must be planned by a competent person, and slings must be inspected and rated on their own certified markings.