1. Chassis part: The truck chassis that carries the entire equipment. It is necessary to select the appropriate tonnage and drive mode according to the crane's lifting capacity and operation requirements. 2. Crane part (body): This is the core working mechanism, including: · Boom: usually a hydraulic telescopic arm, but also a folding arm (folding arm). The telescopic arm has a large working radius, and the folding arm has a compact structure and high efficiency, which is suitable for operations at short distances and limited space. · Slewing mechanism: Achieve 360-degree full rotation or limited rotation of the boom. · Hydraulic system: The heart that provides power, including hydraulic pumps, cylinders, motors, control valves, etc. · Control system: It can be controlled through the joystick/remote control in the cab or beside the car. · Outriggers: extended during operation to stabilize the vehicle body, distribute the load, and prevent overturning. There are many forms such as H type and X type.