Views:7 Author:Site Editor Publish Time: 2017-02-10 Origin:Site
Tower crane is that mounted on the tower crane in the metal tower jib and hoisting mechanism. Work with high hoisting height and radius is big, fast speed, high efficiency etc. According to the presence of walking mechanism can be divided into fixed and mobile. According to its rotary form on rotary and rotary can be divided into two kinds. According to the range of methods can be divided into horizontal arm frame car variable amplitude and movable arm luffing variable amplitude two kinds. According to its, installations can be divided into the jack-up, total quick disassembling and assembling of three. At present, the most widely used is the rotary, quick disassembling, orbit type tower crane and self-lifting of tower crane. Because tear open outfit workload big, assembled type tower crane will gradually be eliminated.