... to maximum the performance of extrusion.3.This PVC pipe extrusion line is designed with our ... machine unit consists of cone twin-screw extruder, vacuum shaping platform, tractor, cutter, drainage pipe, core foaming pipe, muffling drainage pipe (hollow spiral pipe ... pipes can be produced.Extruder for pipe extrusion: ModelSJZ-45SJZ-51SJZ-55SJZ-65SJZ-80ISJZ ... -900 Traction Speed(m/min)1-16/0.6-6 0.6-6/ ...