... straight or curvely shapes, as well as to use with electric wire rope hoists gantry cranes for lifting1.2 Safety and working ... : Hoisting mechanism, operating mechanism and electrical control devices. MD1, HMD1 electric wire rope hoist is based on CD1, which changes hoisting mechanism ... , crane ≤ 10t; H ≥ 6m, weight ≥ 12.5t, we should add an intermediate shaft and a rigid coupling.When H ≥ 9m, from ...