PVC pipe production line: The process flow of PVC pipe production is as following: Screw feeding, high-speed mixing, Spring feeding, Double-screw Extruding, Moulding, Vacuum Finalizing-Size, Hauling, printing, Cutting, Pipe Piling-up. Necessary machinery: 1 set of screw feeding machine. 1 set of high-speed mixing machine 1 set of spring feeding machine 1 set of Double-Screw Extruder 1 set of pipe mould 1 set of Vacuum Sizing Tank 1 set of Hauling Machine 1 set of Pipe mark printer 1 set of cutting Machine 1 set of Pipe stacker Parameter/Model GF110GF160GF400GF630Extruder SJSZ-51SJSZ-65SJSZ-80SJSZ-92Diameter 16-11050-200110-400200-630Length of Calibrator(mm) 5000600060006000Haul-off Speed(m/min) 3-120.4-120.2-40.4-3Total Power(KW) 6295135255Total Length(mm) 20000210002800030000