For industrial production and process technology

The micro annular gear pump mzr-11508X1 is equipped with tungsten carbide rotors and bear-ings. 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 DC-motor the pump has a compact design and covers the flow range from 0.19 ml/min to 1152 ml/min. The mzr-11508X1 is suitable for continuous delivery and discrete dosage of 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
  • Dynamic precision motor
    brushless DC-motor with encoder
  • Compact dimensions
    length 265 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
    0.19 - 1,152 ml/min
  • Smallest dosage volume
    100 µl
  • Displacement volume
    192 µl
  • Differential pressure range
    0 – 30 bar (435 psi)
  • Maximum inlet pressure
    10 bar (145 psi)
  • Liquid temperature range
    -5 ... +60 °C (-20 ... +150 °C *) (+23 ... +140 °F (-4 ... +302 °F))
  • Viscosity range
    0.3 – 50,000 (100,000 *) mPas
  • Precision CV
    < 1% (Coefficient of variation CV)
  • Velocity range
    1 - 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
    brushless DC-servomotor, IP 54, winding 36 V DC, output power 201 W, max. continuous torque 192 mNm
  • Positioning
    1000 counts per turn, analog hall sensors
  • Interface
    motor cable length 2 m, 6-pole plug for motor winding, 12-pole plug for encoder and hall sensors
  • Dimensions (L x W x H)
    265 x 100 x 109 mm
  • Weight
    approx. 4,500 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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