Polymer Processing Systems

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BKG® NorCon™ K-SWE-4K Continuous Piston Screen Changer

Normal operation:
4 screen cavities (100%) in the process

Not applicable

Screen change:
During a screen change two of the screen cavities (50%) are removed from the process, allowing for two of the screen cavities (50%) to remain in operation

The K-SWE-4K is suitable for almost all processes and materials. It can be used for polymerization, compounding, film, pipe, sheet, and pelletizing processes. It enables process runs to continue without any system shutdowns while changing the screen.


  • Four (4) screens enable for a large filter area in a compact and small housing
  • Process remains in operation during a screen change, resulting in no disruptions to the melt flow
  • Fully automated venting procedure (via PLC) reduces operator intervention



  • Optimized flow channels utilizing rheological data 
  • Wear-free metallic sealing system – no additional seal required
  • Easily integrated into the line controls
  • Includes complete guard system, offering maximized safety for the operators