extruder screw cleaning


​Pro Cool D100 Screw Cleaning

Stubborn extrusion screw deposits that can’t be purged away are a typical problem and often there is no easy solution – until now.
Our Pro-Cool D100 system requires only water, drain and electrical service to provide a clean screw up to 100 mm diameter in less than 30 minutes.  Compare this to the drawbacks of other cleaning techniques.
  • Pyrolysis is a common technique for screw cleaning with well-known issues.  Raising the temperature of the screw to the combustion temperature quickly can create uneven heating a lead to warpage of the screw.  Raising and lowering the temperature more slowly results in a long heat cycle time and a significant amount of energy consumption.  Depending on the polymer, the evolved gases can create additional issues - often requiring a specialist shop with the capability to treat the evolved gases. 
  • Sandblasting is a terrible idea because it is too abrasive and will often damage the sharpened edge of the screw which changes the fit in the barrel leading to other issues.  Moving from sand to less abrasive materials results in cleaning take a long time.
  • Chemical cleaning takes a long time, isn’t general and creates waste that is difficult to dispose of properly.
​Watch the video to learn why other companies have already switched to this simple and effective method of in-house screw cleaning.