SGK-250 automatic plastic pipe belling machine : Belling range :20-50mm PLC control High quality Double heater SGK250 double heater automatic plastic pipe belling machine This machine is specially used for belling of PVC pipes .It can be used with pipe extrusion machine and can also used as single machine as well .This machine is controlled by PLC which makes it full automatic and easy to operate .Vacuum calibration technology inside the mould and forced air or water cooling outside the pipe ensure precise belling size .The belling is smooth and round without abrasion . Model SGK250 Belling range 50-250mm Belling type R type ,straight type Quantity of heater two Voltage AC380V,50HZ Heating mode Electrical heating Cooling method Air or water cooling