The hoisting machine pass elastic coupling and riches reducer’s gear, then drive to hollow Axis,thus to drive roll unit as to make the rope around the drum drive hook unit up or down.
Lifting height H = 6m, when Crane capacity <10t, we should use a elastic coupling to connect connect the motor shaft and reducer input shaft.

The elastic coupling is made by 2 spline couplings which would absorbing shock loads and compensate installation error. The rope guide would prevent steel wire rope mess around

When H ≥ 9m, crane ≤ 10t; H ≥ 6m, weight ≥ 12.5t, we should add an intermediate shaft and a rigid coupling.

When H ≥ 9m, from the weight ≤ 10t; H ≥ 6m, when equipped with a crane ≥ 12.5t, we should add a support frame to increase stability.

The gear reducer adopts three-stage outer-engaged gear pump. The gear and transmission shaft is made by alloy steel, which is made after carburizing and quenching has high strength and good resistance.

Each axis is supported by rolling bearing and uses lubricating oil and smooth transmission, and high efficiency. Between the box and lid there is a "O"-ring rubber seal oil to prevent oil spills.