For industrial production and process technology

The micro annular gear pump mzr-11507 is equipped with tungsten carbide rotors and bearings. Hard construction material and precision manufacturing techniques guarantee excellent dosage precision, high service life and wear resistance for low volume dosage of non-lubricating liquids. Driven by a high-power three-phase AC-motor the pump has a compact design and covers the flow range from 29 ml/min to 1152 ml/min. The mzr-11507 is suitable for continuous delivery and discrete dosage of low and high viscosity liquids. It achieves high differential pressures and provides a low pulsation flow. Its robustness and the available accessories make it suitable for challenging applications.


  • High dosage precision
    precision CV < 1% at low volumes
  • Long service life
    wear-resistant tungsten carbide
  • Broad viscosity range
    methanol, water, solvents, adhesives, grease, gel
  • High-power motor
    AC-motor for use with external frequency inverter
  • Compact dimensions
    length 303 mm
  • High differential pressures
    achievable even for low viscosity liquids
  • Low pulsation delivery, low shear stress
    rotary micro annular gear technology


  • Chemical processing
  • Industrial and plant engineering
  • Packaging
  • Medical and pharmaceutical industry
  • Mini plant technology
  • Spraying
  • Dispensing of adhesives
  • Ink and paint dosage
  • Vacuum applications

Flow charts

Technical data

  • Flow rate
    29 - 1,152 ml/min
  • Displacement volume
    192 µl
  • Differential pressure range
    0 – 140 bar (2,030 psi)
  • Maximum inlet pressure
    10 bar (145 psi)
  • Ambient temperature range
    -20 ... +40 (-4 ... +104 °F)°C
  • Liquid temperature range
    -5 ... +60 °C (-20 ... +120 °C *) (+23 ... +140 °F (-4 ... +248 °F))
  • Viscosity range
    0.3 – 150,000 mPas
  • Precision CV
    < 1% (Coefficient of variation CV)
  • Velocity range
    150 - 6,000 rpm
  • Fluid connection
    3/8" NPT internal thread, lateral optional 3/8" NPT internal thread, frontal
  • Wetted parts
    stainless steel 316L (1.4435), tungsten carbide Ni-based; shaft seal: graphite-reinforced PTFE, alloy C276 (2.4819); static seals: FPM, optional: EPDM, FFPM
  • Motor
    AC-motor, IEC-Size 056, 4 poles, IP 55, rated voltage 240/400 V, rated frequency 100 Hz, 240 W
  • Temperature protection
    thermal contact (NC)
  • Dimensions (L x W x H)
    303 x 110 x 171 mm
  • Weight
    approx. 9,300 g
  • Remarks
    * with optional heat insulation or heating module, Customized solutions on request.
  • Notice
    Even if single parameters are within the indicated performance range of technical data, certain parameter combinations may not be achievable. Single parameters may exceed their indicated performance range under adequate circumstances. For detailed evaluation please contact HNP Mikrosysteme. Actual performance may vary. Specifications are subject to change without notice. 
    This document is subject to change without notice.

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