Features: 1)BM screw ensures high prevision, low energy consumption. Extruding is stable and capacity is big. 2)Vacuum cooling calibrator with two-grade, high speed and negative-pressure. Water temperature and level can be auto-controlled. Spraying system with high intensity ensures the even cooling of pipes. 3)Caterpillar haul-off unit is linked with extruder and controlled by PLC. Hauling off speed is stable. 4)Cutter: Planetary cutter ensures low noise and strong scrap absorbing device ensures a clean working condition.