TGJ-22×260Automatic double end boring machine, processing of plastic pipe and steel pipe ends of the rabbet of the special equipment, the machine adopts hydraulic or automatic centering clamping device can effectively guarantee the pipe diameter changes induced by radial runout, adjustable clamping force, thereby protecting the steel and plastic pipe clamping deformation, and effective protection of the surface of the workpiece, electrical control of the use of "PLC" as the core of control, can greatly reduce labor intensity, improve product quality and labor efficiency.