Mitarbeiter der KNOLL Maschinenbau GmbH montiert Kompaktfilter KF-E

Areas of application

KNOLL compact filters KF-E are belt filters for cleaning cooling lubricants of machining processes

  • Use as stand-alone cleaning unit or combined with chip conveyors (e.g. in machining centres)
  • Suitable as pre-separator for downstream superfine filters
  • Local (for one machine tool) or central (for several machine tools) use possible


  • Compact design
  • Good price-performance ratio
  • Greater hydrostatic pressure as compared to flat-bed filters
  • Sweeping strips and scraper
  • Endless filter belt
  • No carrying of cooling lubricant by the filter fleece


Filtration process

  1. Contaminated liquid flows from the side through the inlet box into the filter trough
  2. The filter fleece holds back the contaminant particles during streaming
  3. The contaminant particles form a filter cake, which separates even tiny dirt particles
  4. The filtered fluid collects in the clean tank

Filter belt regeneration

  1. The growing filter cakes increase the flow resistance
  2. The fluid level in the filter trough increases
  3. The belt drive switches on at a defined level (alternatively: time-controlled)
  4. The carrier belt transports a piece of clean filter belt to the filter surface
  5. The fluid level decreases again
  6. A brush and back-flushing device clean the filter belt


Filter systems

Compact filter KF-E

Data sheet
Data sheet
pdf (1 MB)

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