Tower Crane QTZ40 4708 is a new generation of tower crane, designed and developed by our company through absorbing the up-to-date achievements on science and technology as well as advanced technology at home and abroad based on summing up a series of the same type tower crane successful experiences of our company.
Specification:

standard jib: 47m

max load: 4T

tip load: 0.7T

max moment: 400KN.m

Free standing height: 30m

attachment standing height: 105m

Hoisting mechanism:
hoisting velocity: 30/15/3.4 m/min

power:  0.7KW

Slewing mechanism:

velocity: 0.25/0.4/0.55/0.7 r/min

power:  3.7 KW

Trolley mechanism:

velocity: 36/18 m/min

power: 2.2/1.5KW

Telescoping mechanism:

velocity:  0.7m/min

power: 5.5KW