Cable craneA hanging fetching device lifting the car along a carrying crane running overhead cable. Compared with other hoisting machinery, it has obvious advantages of large span, fast speed, high efficiency, simple structure, low cost, construction period is short, and is not limited by climatic and topographic conditions, and under certain conditions can play other heavy machinery and technology can play a role. So it is widely used in mining industry, forest industry, industrial raw materials field, dock, ferry and bridges, water and electricity construction hoisting and construction work.