PVC pipe machines are mechanical equipment used to process polyvinyl chloride (PVC) materials, producing both rigid (RPVC) and flexible (SPVC) pipes. The equipment consists of a conical screw, a metering feed device, an extrusion die, and a vacuum forming tank, forming the PVC pipes through direct extrusion or granulation of powder. The produced PVC pipes are chemically resistant and have good insulation properties. They are categorized by application, including drainage pipes, water supply pipes, and electrical conduits. Water supply pipes require specialized fittings and account for over 60% of the plastic pipe market.
PVC pipe machines are driven by Siemens Bede motors, with a main unit power range of 47.3-106 kW and an extrusion capacity of 100-200 kg/hour, producing pipes with diameters from 14-400 mm. The die head structure design directly affects the pipe forming quality; typical structures include specialized die heads suitable for small pipes under 50 mm. Applications include building door and window profile assembly, cable sheathing, fluid transport pipes, and artificial leather coating. The production of rigid pipes requires the use of SG-5 type resin in combination with lead-based stabilizers to ensure processing performance and the compressive strength of the finished product.
