商品描述： 超长吊臂（42/47/48），覆盖面大。
标准节截面大（1500×1500），刚性好，吊重时整机稳定，摆动小。
标准节主肢材料型号大（∠140×140×12）。
电器系统采用国内优质或进口元件，性能稳定可靠。
标准节连接套、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，变形小标准节可互换组合。
起升机构调速性能好，起升、下降平稳、无冲击。
回转机构采用绕线电机，工作平稳，就位快捷方便、高效。
Over-long boom is （42/47/48）,wide range of coverage.
Heavy in section of mast section（1500*1500）,good steel performance,complete crane is stable and
little swing as load.
Main material of mast section is （140*140*12）.
Electric system adopts domestic fine quality or import components,performance is stable and reliable.
Mast section,tie bar,upper and lower bracket and so on,main parts all adopt CO2,GSAW with large
in weld penetration,small in transformative,mast sections can exchange combination.
Hoisting mechanism has good timing performance,rise and fall are stable,shockless.
Slewing mechanism adopts winding motor,operating balance,efficient,fast and convenient in position.