The System configuration of PVC pipe production line (a) Spring feed machine (b) Conical double-screw extruder (c) Mould (d) Vacuum sizing machine (e) Hauling off machine (f) Printing word machine (g) Pipe cutting machine (h) Pipe pile-up frame (i) Auxiliary machine such as feeding, blending and grinding machine For production of different pipes with 16mm - 500mm diameter