HNPM mzr-7241

  • Max. Capacity 288 ml/min

  • Max. Pressure 5 bar

  • Max. Viscosity 10000 mPas

  • Temperature Range -5 to +60 °C 

HNPM mzr-7241

HNP Mikrosysteme Modular Pump Series HNPM mzr-7241 Micro Annular Gear Pump

The HNP Mikrosysteme micro annular gear pump mzr-7241 Small Dimensions, Low Pulsation, High Precision Low Volume Dosage of Non Lubricating liquids.  modular pump series are suitable for dosing and metering in low to medium pressure and viscosity ranges. 

The HNP Mikrosysteme micro annular gear pump mzr-7241 pumps are suitable for dosing and dispensing deionized water, aqueous solutions, solvents as well as low to highly viscous oils, lubricants or dyes. These Micro Pumps are suitable for dosing very small volumes of liquid in discrete dosing. The compact design means that a very sophisticated mechanism fits in an extremely small space.
The HNP Mikrosysteme mzr-7241 Modular Series Pump has low shear stress and low pulsation - all operated with no valves. The materials are fully customisable with pump components available in stainless steel/tungsten carbide, aluminum/tungsten carbide or alloy C22/Ceramics. 

Advantages of the HNP Mikrosysteme mzr-7241 Micro Annular Gear Pump

  • Customized material selection -pump components in stainless steel/tungsten carbide, aluminium/tungsten carbide or alloy C22/ceramics
  • Long service life - wear- and corrosion-resistant materials
  • Compact dimensions - length 128 mm
  • Dynamic smart drive and control - brushless DC motor
  • Low pulsation delivery, low shear stress - rotary micro annular gear technology, no valves

Applications of the HNP Mikrosysteme mzr-7241 Micro Annular Gear Pump

  • Chemical processing
  • Industrial and plant engineering
  • Packaging
  • Dispensing of adhesives


Flow rate

9.6 – 288 ml/min

Viscosity range

0.3 - 10,000 mPas (max. 50,000 mPas *)

Precision CV

1 % (Coefficient of Variation CV)

Velocity range

200 - 6,000 rpm

Fluid connection

1/8" NPT internal thread, lateral optional: flanged connection with pipe socket, frontal

Wetted parts

Pump case: stainless steel 316L, optional: aluminium anodized, alloy C22; rotors: tungsten carbide Ni-based, optional: ceramics; bearing: ceramics, epoxy resin; shaft seal: graphite-reinforced PTFE, stainless steel 316L; static seals: FPM, optional: EPDM, FFPM


Brushless DC-motor, 17 V DC, 40 W

Dimensions (L x W x H)

approx. 128 x 42 x 60 mm


approx. 850 g (aluminium version approx. 430 g)

Differential pressure range

0 – 5 bar (0 – 40 bar *)

Maximum inlet pressure

1 bar (5 bar *)

Operating temperature range

-5 ... +50 °C

Displacement volume

48 µl


* with optional additional axial bearing support

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 Thomson Process Equipment and Engineering - agents for HNP Mikrosysteme. Actual performance may vary.
Specifications are subject to change without notice.


Fluidic seal module
Controller S-KB-4
Additional axial bearing support