Mitarbeiter der KNOLL Maschinenbau GmbH montiert Rückpumpstation RSR
Rückpump- / Rückförderstationen Rückpumpstation RSR - KNOLL Maschinenbau GmbH

Areas of application

The return pumping station RSR is a compact conveyor station suitable for attachment on machine tools which produce small amounts of chips, in particular grinding machines. It can also be installed as collecting station for small amounts of cooling lubricant from centrifuges, conveyors and drip pans.


  • Fully automatic, unmanned cooling lubricant and chip transport
  • Simple, solid design
  • Chip reducer cannot be retrofitted
  • The cooling lubricant intake can be adapted to the machine (gravity inflow or pumping)
  • All drives and maintenance areas are outside of the machine tool


The cooling lubricant contaminated with sludge or chips flows through an outlet on the machine tool and into the pump back tank. An auxiliary lifting pump assists this process where required. The recirculation pump transports the chip/cooling lubricant mixture through the return pipe to the filtration system. The tangential intake has a helical channel which prevents the deposition of grinding sludge.


Return pumping / recirculation stations

Return pumping station RSR

Data sheet
Data sheet
pdf (93 KB)

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