We supply the double HDPE/ PP gas and water pipe co-extrusion lines with the production of diameter 16 mm upto 1600mm. Specialised screw designs for high output rates and homogeneity at low mass temperature. -Special grooved feeding bush with water cooling system results in increased compression and filling factors. -Unique design of low-pressure inclined flow passage spiral/lattice basket diehead, ensures low temperature and high plasticizing extrusion of PE pipes -Special designed die core spiral temperature control, ensures the performance of PE pipes -Multi-layer co-extrusion die offers the advantages of low cost and flexibility of layer structure with different material -With two-stage vacuum system(for large diameter)advanced water recycle & high pressure cooling system -With flexible round degree adjust unit -With accurate water level & temperature monitor system -Long water tank effect high efficiency cooling -Unique spraying pipeline design shorten unit cooling length -With good appearance practical stainless tank -Special integral transmission unit avoids asynchrony of individual transmission -Advancded four connecting rod structure makes self-centering of haul- ff'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 -Unique non-scrap cutting unit enusre clean cutting section for 16mm to 630mm pipe.