hydraulic tower crane: Independent height:45m Load capacity:6t,Tip load:1.3t ... /55/50m Max height:180m Our QTZ80(TC6013) hydraulic tower crane has merits as follows: 1,Hoisting mechanism:three-speed ,reducing ... .Full set of safety protection equipments :weight limiter, moment limiter, luffing limiter, height limitater, and slewing limiter ,trolley rope-off protection ...