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HNPM

Micro-annular low flow, high accuracy internal gear pumps.

The six series of MZR micro-annular gear pumps from HNP Mikrosysteme are low flow, miniature, positive displacement pumps.  These micro pumps are designed for precise, accurate, smooth, pulse-free pumping and dispensing of a wide variety of liquids including low and high viscosity fluids.  The compact size and low mass of the MZR pump/motor units ensure they can easily be incorporated into the designs of many systems.

                          

The main markets for the HNP Mikrosysteme MZR pumps include analytical instrumentation, mechanical and plant engineering, chemical and pharmaceutical process engineering as well as in new markets like fuel cells, biotechnology, organic electronics and aerospace.

We are authorised UK distributors for the HNP Mikrosysteme range of micro pumps and have extensive experience in helping clients select the correct pump for their specific requirements, so call our expert engineers today. 

High Performance Series

High Performance Series

High Performance Series micro-annular internal gear pump for pumping low and high viscosity liquids at medium to high differential pressures. 

  • Capacities from 0.0015 to 1152 ml/min
  • Differential pressures to 100 bar
  • Viscosities from 0.3 to 1,000,000 cP
  • Stainless steel construction
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Low Pressure Series

Low Pressure Series

HNP Mikrosysteme’s MZR Low Pressure series are compact micro annular gear pumps designed for use in analytical instrumentation. The pumps generate a low pulsation, highly precise flow featuring low shear stress, dispensing low volumes in the microlitre range at high precision.

  • Compact dimensions: diameter 13-18 mm, length 75-88 mm
  • Small dosage volumes, high flow rates: smallest volume 0.25 µl, flow up to 72 ml/min
  • High dosage precision: coefficient of variation (CV) 1 % at low volumes
  • Long service life: wear-resistant tungsten carbide or ceramics wetted components
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Hermetic Inert Series

 Hermetic Inert Series

Hermetic Inert Series micro-annular gear pumps with leak-free magnetic couplings for aggressive, hard-to handle liquids.

  • Capacities from 0.024 to 1152 ml/min
  • Differential pressures to 60 bar
  • Viscosities from 0.3 to 1,000 cP
  • Hastelloy-C construction with SiC and Tungsten Carbide wetted parts 
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Magnetic Hermetic Series

Magnetic Hermetic Series

Magnetic Hermetic Series of micro-annular gear pumps with leak free magnetic coupling and integral controller.

  • Capacities from 4.8 to 72 ml/min
  • Differential pressures to 5 bar
  • Viscosities from 0.3 to 100 cP
  • Stainless steel construction with leak free magnetic coupling 
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Modular Series

Modular Series

Micro-annular internal gear pumps suitable for the dosing or metering of light corrosive liquids. The pumps are available in a choice of chemically resistant wetted materials.

  • Capacities from 0.0015 to 1,152 ml/min
  • Differential pressures to 40 bar
  • Viscosities from 0.3 to 50,000 cPa
  • Wide choice of materials of construction
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Ex Series

Ex Series

High Performance Series and Hermetic Inert Series pumps with ATEX motors.

  • Capacities from 0.0015 to 1152 ml/min
  • Differential pressures to 80 bar
  • Viscosities from 0.3 to 5,000 cP
  • Stainless steel or hastelloy C construction
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MoDos Systems

MoDos Systems

Modular Dosing System (MoDoS®) are custom built dosing systems incorporating a micro annular gear pump combined with filters, sensors, valves, and fluid connections built into a sturdy aluminium frame.

  • Tailor-made, modular pump system with pump, filters, sensors and controllers as required
  • Capacities from 0.003 to 1152 ml/min
  • Differential pressures up to 80 bar
  • Viscosities from 0.3 to 1000 mPa
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Controllers

Controllers

HNPM produces a range of drive controllers to enable accurate continuous delivery and precise dosing when using its MZR pump/motor series. There are various software options to allow you to set and save pump drive parameters.

  • High quality pump controllers for continuous delivery and precise dosing
  • Digital I/O and RS232 interface available with most models
  • Powerful 16-bit microcontroller
  • Programming with Windows software: “Motion Manager” or HNPM’s own application
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Filters

Filters

The precision-machined rotors of a micro annular gear pump are susceptible to damage from sediments carried in the feed. HNPM therefore recommends the use of a suction-side filter and offers a number of filtering solutions and configurations for use with its pump series.

  • Filters available in a range of corrosion-resistant materials with different body shapes, filter fineness and sealing materials
  • Metal filter elements without solder or adhesives
  • High filtration performance and small size optimized for a low pressure drop even at higher flow rates and viscosities
  • Filter monitoring available
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