HNPM mzr-11508

Max Capacity: 1152 ml/min

Max Pressure: 100 bar

Max Viscosity: 150,000 cST

Temperature Range: -5 ... +120 °C

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HNPM mzr-11508 Micro Annular Gear Pump

The micro annular gear pump mzr-11508 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 DC-motor the pump has a compact design and covers the flow range from 0.19 ml/min to 1152 ml/min. The mzr-11508 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
  • Dynamic precision motor
  • brushless DC-motor with encoder
  • Compact measurements
  • length 333,3 mm
  • High differential pressures
  • achievable even for low viscosity liquids
  • Low pulsation delivery, low shear stress
  • rotary micro annular gear technology


Accessories Available for the Micro Annular Gear Pump


Flow rate 0.19 – 1152 ml/min
Viscosity range 0.3 – 150,000 mPas
Precision CV < 1 % (Coefficient of variation CV)
Velocity range 1 – 6000 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-motor, IP 54, 42 V DC, max. 368 W
Dimensions (L x W x H) 333,3 x 110 x 125 mm
Weight approx. 8 kg
Encoder 500 counts per turn, type HEDL 5640
Temperature protection PTC-resistor, 6 pieces
Electrical connection motor cable length 3 m, 6-pole plug for motor winding, 12-pole plug for encoder and hall sensors
Differential pressure range 0 – 40 bar (1 mPas); 0 – 100 bar (above 16 mPas)
Maximum inlet pressure 10 bar
Operating temperature range -5 … +60 °C (-5 … +120 °C *)
Displacement volume 192 µl
Smallest dosage volume 100 µl
Remark * with optional heat insulation or heating module,

Customized solutions on request

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 us.


Accessories Available for the Micro Annular Gear Pump

Heat insulation module

thermal insulation of pump head and drive for high performance and hermetic inert pump series, 

also available in ATEX

Fluidic seal module

additional sealing system for handling liquids sensitive to air or moisture and for vacuum applications of pumps from the high performance series

Electrical heating module

additional electrical heating for pump heads from the high performance and hermetic inert series with frontal fluid connection,

thermal insulation of pump head and drive,

prevents temperature drop of liquid

Double shell heating module

double shell for active heating or cooling of pump heads from the high performance and hermetic inert series,

thermal insulation of pump head and drive,

prevents temperature drop of liquid

Controller S-HV

for micro annular gear pumps mzr-7208 / mzr-11508 / mzr-11558,

4-Q-DC controller for continuous dosing


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