This machine is mainly used to manufacture the PVC pipe of various diameters and wall thickness , used in the agriculture, construction and cable lying etc. This line is composed of conical twin-screw extruder, vacuum calibration tank, haul-off, cutter, and stacking etc. Extruder and haul-off adopt imported AC frequency speed controller , vacuum pump and driven motor all adopt superior products. The haul-off method has two- claw, three-claw, four-claw, six-claw and etc. And the cutter can choose the method of saw or planetary, also can equip length measurer and thickness-strength device. This line is reliable and high effective, and our company may equip the special device to produce spiral sound deadening pipe and core foam pipe also