We supply the PVC pipe extrusion lines with the production of diameter 12 mm upto 630mm advanced and unique screw design concept ensures the high efficiency extrusion of PVC material unique screw design ensures flexible plasticizing and super-high output, extrusion advanced control system ensures the good ruuning the concept of the spider die guarantees outstanding product characteristics for PVC materials ideal dwell time profile over the whole flow cross-section Hommogeneous melt distribution with selective temperature control with two-stage vacuum system in vacuum calibration bath for large diameter pipe with automatic water level and temperature monitor and cycling system with cycling liquid filter system special integral transmission unit avoids asynchrony of individual transmission high-reliable transmission system ensures the normal extrusion advancded four connecting rod structure makes self-centering of haul-off's loacating accurate pressure regulating system makes hauling power adjustable full-hydraulic design ensures flexible pressure in cutting state of pipes unique power input system ensures high reliability of planetary unit with ultra silent & enforced sucking system.