The new hexagonal arm section has stronger bending and torsion resistance. The automatic hook retracting device in the final position saves preparation time before and after operation, prevents the hook from swinging, and improves driving safety. The use of large-span square box outriggers can improve the stiffness of the outriggers, effectively reduce deformation, and improve operational stability. The throttle linkage control system configuration greatly improves the efficiency of hoisting operations. An over-winding protection device is adopted to prevent safety hazards caused by wire rope breakage. A variety of control forms to meet the needs of different customers.