Wrecker Supply USA Winch Cable Drum Capacity Calculator – Wrecker Supply (WiscoLift)

Drum Capacity Calculator

The full drum capacity is calculated below using the formula below. This formula is based on the practices of wire rope manufacturers and assumes uniform winding of the wire rope. In actual practice, drum capacities may be 25-30% less than the values given by this formula due to uneven spacing, loose winding and overlapping.

Drum Capacity in Feet = (A + B) * A * C * K Factor