The hoisting machinery mainly consists of three parts: the working bodies, metal structure, power plant control system. Institutions of the so-called work is the transmission part of lifting machinery, hoisting mechanism common run institutions, slewing luffing mechanism, usually called "crane four institutions, rely on the composite movement of four organizations, cranes feed and discharge any need to develop position.

The main parameters of the crane
From the weight of the: My GB/6974 has provisions crane capable of lifting the quality of the goods from the weight of, and does not include the quality of the hook, but can be divided into the spreader (such as grab, clamp, electromagnets), must be credited to grab quality.