Radial Gate Hoists consist of hoist base, hoist operator, cable drums, drum shafts, cables, and bearing bracket to operate the radial gates. The operators shall be adequate for opening of radial gates to double the gate height for operating head specified. The hoist shall be furnished with cold-rolled steel drum shaft and with two cast iron or steel drums. Drums shall be accurately machined to the same diameter and attached to the drum shaft. Galvanized steel cables and clamps shall be furnished for field connection of the drums and to the gate. Each system has twin drums connected by a shaft for winding the two operating cables simultaneously.