QTZ80 自升式

■ 超长吊臂、覆盖面大。
■ 标准节截面大、刚性好、吊重时整机稳定、摆动小。
■ 标准节主肢材料为角钢扣方或方管。
■ 电器系统采用国内优质或进口元件，性能稳定可靠。
■ 标准节、拉杆、上下转台等主要部件（位）全部采用CO₂气体保护焊。熔深大。变形小。
■ 回转机构采用绕线电机或变频电机，工作平稳、就位快捷方便、高效。
■ 起升机构调速性能好，起升、下降无冲击、平稳。

QTZ80 self-ascending tower crane

■ The ultra long arm，the coverage area is big.
■ The standard segment section is wide，rigidity is good，complete machine is stable when craning，swings slightly.
■ The standard segment principal branch is angel steel or square tube.
■ The electrical system uses domestic high quality or importing parts，performance is stable and reliable.
■ The standard segment，drawbar，from top to bottom turntable.ａnd other major comparents，used in all CO₂ gas-shielded welding，penetration depth deep，small deformation.
■ Slewing mechanism adopt winding motor or frequency motor，starts smooth and reliable.place convenient and efficient.
■ Hoisting mechanism with good performance of speeding.lifting and declining no impact and smooth.