快架塔式起重机发展简述

Briefly talking about development of fast-erecting tower crane

快架（或称快装）式塔机系指安装、架设或拆卸转运非常快捷，一般可在2-3个小时左右完成，并且装拆过程可以依靠自身机构进行而不必借助外部起重设备的一种塔机类型，目前均为中小型下回转式塔机。

Fast-erecting tower crane is also named fast-assembling tower crane. It can be assembled, set up, torn down and transported expediently. Every process can be accomplished in 2 or 3 hours. Not only the pro- cess of setting up but also tearing down it can bring to success all by itself. This type tower cranes are mostly small and medium-sized low level slewing models.