Polymer Processing Systems

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

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

Not applicable

Screen change:
During a screen change, 1 of the screen cavities (50%) is removed from the process, allowing for 1 of the screen cavities (50%) to remain in operation

The K-SWE 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.


  • Process remains in operation during a screen change, resulting in no disruptions to the melt flow
  • Easy adjustment of the hydraulic device via the hand control or solenoid valves
  • Optional 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