Grade 80 Alloy Steel Double Forged Open Hooks Leg Chain Sling (DOF)

This Grade 80 Alloy Steel Double Forged Open Hooks Leg Chain Sling (DOF) consists of two equal-length alloy steel chain legs joined at a common master link at the top, each terminating in a forged open foundry hook — providing a versatile, high-capacity lifting assembly for loads with two attachment points or for multi-point balanced lifting of long structural members and fabricated components.

The two-leg configuration distributes load across both chain strands, with the effective Working Load Limit dependent on the included angle between the legs. At 0° (vertical), the combined WLL equals twice the single-leg rating; at 45° sling angle, the WLL is reduced to the rated capacity of each individual leg. A sling angle indicator is provided on the ID tag to assist riggers in determining the correct WLL for the intended lift angle.

Available with chain diameters from 7 mm to 22 mm and leg lengths from 1 to 4 meters as standard, with custom lengths available on request. Working Load Limits range from 2.24 to 32.6 tonnes at 0° vertical. Each lower hook is a Grade 80 forged open hook, sized to match the chain diameter and rated at the same WLL as the chain strand.

All components comply with EN 818-4 and ASME B30.9 overhead lifting standards. Each leg and all hardware components are individually proof-tested and marked, with the complete assembly supplied with a color-coded ID tag and load test certificate for inspection and compliance documentation.