QTZ50 自升式

■ 超长吊臂（48/50米），覆盖面大。
■ 标准节截面大、刚性好、吊重时整机稳定、摆动小。
■ 标准节主肢材料型号大。
■ 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。
■ 回转机构采用双速电机或绕线电机，启动平稳可靠、无冲击。
■ 起升机构调速性能好，起升、下降无冲击、平稳。

QTZ50 self-ascending tower crane

■ The ultra long arm（48/50m），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 model is big.
■ 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 components，used in all CO₂ gas-shielded welding，penetration depth deep，small deformation.
■ Slewing mechanism adopt two-speed motor or winding motor，starts smooth and reliable，no impact.
■ Hoisting mechanism with good performance of speeding，lifting and declining no impact and smooth.