Common Problems and Solutions of PVC Pipe Extrusion Line

PVC pipe extrusion lines may meet different faults during continuous running, which affects pipe quality and production efficiency. 

 1. Air bubbles on pipe surface
The main reasons are wet raw materials or unstable vacuum calibration tank. Dry PVC powder before feeding and check vacuum pressure regularly. 

 2. Uneven pipe wall thickness
Check extruder screw speed, die gap and haul-off speed. Adjust the die bolts for uniform material flow. 

 3. Surface scratches on PVC pipe
Clean the calibration sleeve and haul-off rubber pads, remove hard impurities inside the mould. 

Our PVC pipe extrusion line is equipped with stable extruder and calibration system. If you need reliable PVC pipe production equipment, welcome to contact us.