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Metering Progressing Cavity Pumps 

The M range metering progressing cavity pump series is designed specifically for dosing any kind of liquid. Dosing pumps are feature reversible flow, excellent self-priming rate, and low-shear pulsation-free pumping.

Sydex has the perfect solution for small, sterile pumping applications. The Sydex M Range progressing cavity pump gives you perfect control over flow rates, using its on-board inverter with speed ranges from 0-1000 rpm. With its gentle low-shear ability, this positive displacement pump can handle pressures of up to 36 bars with little impact on flow.


The M range is the ideal metering progressing cavity pump for many different applications: Waste water treatments (Polymers, flocculants); Chemical industry, (Cosmetics, Dyes, Paints, Inks, ) plus many sampling & premixing applications.

M range advantages


  • Versatile and compact

    • ​Different rotor and stators sizes available enabling different dosing capacities, all available within one modular design envelope

  • Accuracy

    • Accuracy which is often extremely important in this application can be maintained at a maximum variation of ± 1%.

  • Reliable

    • The dosing capacity is proportional to the rotor speed making control both easy and reliable.

  • Easy and quick maintenance​


M range performances


  • Flowrrate:
    from 3 l/h to 300 l/h [from 0.013 to 1.32 USGPM]


  • Pressure:
    up to 72 bar [1044 psi]


  • Speed:
    up to 1000 rpm


  • Range:
    4 models

M Pump controlled with manual variator
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