Plastic tubing as an important part of the chemical building material, with its superior performance, health, environmental protection, low consumption, etc for the masses of users, the main widely accepted a UPVC pipes, UPVC pipes, lu: su composite pipe, polyethylene (PE) water supply pipe this several. Pipe production line control system, by extruder, head, finalize the design cooling system, tractor, cutting device and planet turned feeder composition. Article each pipe production line have two extruder, its main a extrusion machine adopts power transmission bushings and efficient screw, the other a smaller extrusion machine for extrusion mark line. Plastic pipe production line malfunction, which will result in the plastic pipe material surface coarse, internal appear jitter ring, no vacuum wait for a phenomenon, so to promptly eliminate plastic pipe production line fault, can improve the quality of products.