Description

1,Hoisting mechanism:three-speed ,reducing mechanism,
 light load high speed ,heavy load intermediate speed and non-load low speed.

2.The slewing mechanism: planet gear speed reducer,fluid coupling ,slewing brake device 
 steady starting , accurate position , compact structure.

3.The trolley  mechanism:planet gear speed reducer , two-speed motor  driving

4.New moment limiter :outside adjustable, easy  adjust and safe

 can be  governed by a special person after adjusting

5.Cabin:developed on the basis of the human engineering principle,linkage control desk .

6.Full set of safety protection equipments :weight limiter, moment limiter, luffing limiter, height limitater, and       slewing limiter ,trolley rope-off protection, trolley spindle-break protection,pulley anti-skipping rope devices, labor protective devices like rest platform and guardrail.