PPR cold and hot water pipe production line mainly applies to produce pipes with various diameters and wall thickness which are widely used in fields of house water supply system, industrial water transportation and transportation of contracted air, etc. PPR pipe is the latest salable product. It has characteristics of economy, innocuity, rustlessness, resistance to high temperature and easy installation. Adopting high efficiency screw which is specially designed to cater for the characteristics of PPR material, the main machine of the production line ensures high output and stable extruding. Full automatic vacuum feeding machine and automatic constant-temperature drier are also equipped . Skep type die head is suitable to process polyolefin materials. Low pressure of melt substance and low temperature of plasticization are available, and a wide range of materials can be processed. Advanced vacuum sizing method and reasonable sprinkle cooling water tank ensure satisfactory quality of pipe and production speed. Made of abrasion-resisting synthetic material, the tractor has stable pulling force and long lifespan. Totally new and automatic cutting saw makes accurate and plane cross-section without scrapings Both screen-touched operation and programmed PLC control accomplish synchronic speed- adjustment. i.e. the speed of extrusion and traction. When change relevant mould and auxiliary equipment, this production line can produce PP-C pipes, PE-X cross-linking pipes, and silicon core pipes of polyolefin, etc