Mainly used in the manufacturing of pipe material production lines with PP-R as raw material 1) Diameter: 12 - 630mm 2) High heat resistance, aging resistance, environmental stress and     crack resistance3) High mechanical strength, ideal for conveying urban fuel, gas and water     supply4) Effective extruder: high speed, low noise, hard reducer box, high output,     low energy consumption, with screw of 30, 45, 65, 90, 100, 120, 150, 200     and 250mm5) Different auxiliary machines are combined6) Length / diameter ratio can be changed (suitable between 25:1 - 36:1)7) Specially designed screw, decelerator with high torque and high power     DC motor ensure good mixture of material and high output8) Spiral-diversion compounded die adapter: easy to adjust and discharge9) High pipe quality10) Vacuum sizing and cooling system:      a) Uses plate-type sizing sleeve and stainless steel water trough      b) Correct sizing, fast cooling and high efficiency11) Traction: uses dual-claw or multi-claw traction units12) Cutting: flat cut face13) Traction and cutting can be varied to meet customers' demands 14) Normal type and HMC micro-computer controlled type for customers' choice15) Suitable for all kinds of PE and PPR materials pipes production.