Traveling Principle: This used truck‑mounted crane adopts a heavy‑duty special truck chassis. The chassis engine provides travel power to drive wheels for fast highway transit. It can move flexibly between different construction sites and run directly on public roads after work for convenient and efficient transportation.

        Lifting Working Principle: The equipment is equipped with a telescopic boom lifting device. Lifting operations are realized through coordination of luffing cylinders, telescopic cylinders and winch mechanism. The operator manipulates control handles to output control signals. The hydraulic system delivers pressurized oil to drive each actuator, realizing boom luffing & telescoping, winch hoisting & lowering of wire rope and hook. Together with outrigger extension and leveling, it completes the full workflow of heavy‑object hoisting, shifting and lowering.