A self-propelled curved arm lift is a high-altitude work platform with self-propelled capabilities. Its characteristic is that the boom can be extended, tilted, and rotated to meet the work requirements at different heights and angles. This device has a compact structure, flexible steering, moderate chassis width, and can easily enter narrow passages and crowded work areas.

The working principle of a self curved arm elevator mainly relies on hydraulic or electric systems. By operating the control handle, the driver can easily control the lifting height and movement direction of the equipment. Hydraulic oil is pressurized by a vane pump, passes through components such as oil filters, solenoid directional valves, throttle valves, hydraulic control check valves, and balance valves, and finally enters the lower end of the hydraulic cylinder, pushing the piston upward to lift heavy objects. When heavy objects need to be lowered, hydraulic oil will pass through different valve groups and return to the oil tank, while the balance valve and throttle valve will maintain a smooth and controllable descent speed.