Mobile crane for lifting heavy loads e.g. reactors, generators, and distillation columns has two individual mobile cranes consisting superstructure, mounted on chassis, on which mobile extension arm is arranged

摘要

The mobile crane has two individual mobile cranes (1,11) with a superstructure (3,13) mounted on chassis (2,12). Mobile extension arm (4,14) is arranged on superstructure, derricked, and its derrick angle is adjustable over derrick work (5,15). Extension arms are aligned parallel to each other and connected with each other. Derrick works are synchronized such that extension arms are synchronously derricked.