Progressive cavity pumps

Continuous metering of abrasive materials

The progressive cavity pump is a high-precision volumetric metering system that operates continuously and pulsation-free. The rotational motion of the eccentric screw ensures highly precise, constant metering, particularly in the case of small output rates from 0.1 ml/min. The special rotorstator combination prevents excessive wear when processing abrasive materials. This guarantees a long service life and high cost-efficiency.

Thanks to eccentric screw pump technology, liquids and pastes with up to 60% filler content can be metered with high precision. The metering quantity can be adjusted completely linearly. This enables a metering precision of ± 1% and better. 

Product properties

  • Variable discharge rate from 0.002 ml
  • Output rate of 0.1 to 45 ml/min
  • Speed of 0 to 150 rev/min
  • Maximum input pressure of 6 bar
  • Maximum operating pressure of 10 bar
  • Ideally suitable for all viscosities from highly fluid to pasty
  • Snuff-back function

Options

  • Cartridge supply 10cc / 30cc / 55cc

  • Pressure regulator and level control for cartridge supply
  • Spray adaptor
  • Servo controller
  • Various needle tips

Progressive cavity pump: Metering small quantities of lubricants, adhesives and sealants

Technical specifications

Size [ml/U] Output rate * Min. metering
volume**
Speed range Pwork
[bar]
Pmax
[bar]
Metering accuracy
0,01 0,13 – 1,95 0,002 1 - 150 6 10 ± 1 %
0,05 0,59 – 8,85 0,008 1 - 150 6 10 ± 1 %
0,15 1,63 – 24,5 0,01 1 - 150 6 10 ± 1 %
0,30 3,0 – 45,0 0,03 1 - 150 6 10 ± 1 %
  * in speed range ** depending on material properties, nozzle size, alignment of pump, etc.        

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