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BKG® NorCon™ Manual Screen Changer EM / XM and EMR / XMR

Normal operation:
1 screen cavity (100%) in the process

Not possible 

Screen change:
During a screen change, the screen cavity (100%) in the process is removed manually, indexing the other screen cavity (100%) into operation

From the worldwide leader in filtration equipment, Nordson offers the EM / EMR (standard) as well as the XM / XMR (metric) manual screen changers. Contamination of the melt stream by metal, wood, paper or degradation yields products that are unacceptable in appearance or performance. Manual screen changers are the least expensive and most suitable option for processes that require infrequent changes. Manual screen changers minimize costly downtime for screen replacement. With a simple swing of the handle lever during routine shutdown, clean screens are quickly brought on-line. No line disconnection occurs, and full production is re-established. The EM/XM can easily be retrofitted with a ratchet mechanism that is mounted to the top.


  • Compact extruder interface
  • Leak-free operation
  • Safe operation
  • Optimized polymer rheology
  • Low capital and operating cost


  • Bolt through extruder connection
  • Extruder screw pull through
  • Pressure activated sealing
  • Optimized flow channel design
  • 3 position handle

High Temperature Seal Option

  • Expanded low viscosity sealing
  • For temperatures between 260-343°C (500-650°F)
  • Retrofittable design

Ratchet Option

  • Retrofittable design to current EM/XM models (EM/XM ➞ EMR/XMR)
  • Less torque requirement = less operator effort to shift slide plate
  • Compact line configuration