1-QTZ40 (4808) Tower cranes make full use of group technology, modular design techniques and finite element analysis technology, "tower crane computer design platform" as a tool designed for the latest model of lifting and transport machinery

2-The machine is horizontal jib, trolley, the rotary hydraulic jacking crane. Maximum weight of 4t; independent working height 29m, the maximum working range of 48 meters.

3-The whole shape of the international popular form, the shape is pretty perfect.

 4-High operating speed,speed control performance is good, working smooth and high efficiency.