1.The machine has the manual and automatic functions at the same time, and provided with the emergency stop device, can set various angles, using micro-computer controller, high stability, non-contact; 2. Adopt hydraulic integrated circuit, and control the motion respectively. 3. Three-section type circuit, with cooling and limit-control functions, thus to avoid manmade carelessness. 4. Compact arc-hand and elbow designing, provides a max bent pipe space. 5. It also can be equipped with booster and reinforced push rod according to customers' requirements. 6. Safety plate, used to prevent from being injured due to clamping.