HNPM mzr-11557

Max Capacity: 1152 ml/min

Max Pressure: 60 bar

Max Viscosity: 1000 mPas

Temperature Range: -20 to +100 °C 

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HNP Mikrosysteme HNPM mzr-11557 Micro Annular Gear Pump Hermetic Inert Pump

Hermetic Inert Series Pump mzr-11557 micro annular gear pump suitable for aggressive and corrosive fluids from HNP Mikrosysteme.

The HNP MIkrosysteme micro annular gear pump mzr-7255 is leak Free, has a long Service life and is low on energy consumption with outstanding resistance to corrosion and wear. 

The HNP Mikrosysteme mzr-11557 micro annular gear pump of the hermetic and chemically inert series is, considering its almost universal suitability for aggressive and corrosive media, a revolution in the pump technology. Its rotors and functional elements being made of ceramics, the pump shows the highest chemical resistance and an outstanding resistance to wear. Thanks to the use of ceramics as bearing and shaft material, a magnetic coupling, and case components made out of alloy C22 (DIN 2.4602), this pump will take up any challenge in the chemical industry applications.

Advantages of the HNPM Mikrosysteme MZR – 11557 

  • High resistance to corrosion – oxidizing and reducing media, acids and bases
  • Hermetically sealed – magnetic coupling (NdFeB)
  • Long service life – wear-resistant ceramic components
  • Thermical heating -optional double shell technology
  • Chemically inert pump head -alloy C22, SSiC, Al2O3 and ZrO2-ceramics
  • High-power motor -AC-motor for use with external frequency inverter
  • Low pulsation -rotary micro annular gear technology, no valves

Applications of the HNP Mikrosysteme MZR-11557 Hermetic Inert Series Pump. 

  • Flow chemistry
  • Microreaction technology
  • Mini plant technology


Technical Data for the HNP Mikrosysteme mzr 11557 Hermetic Inert Series Pump.

Flow rate 29 – 1152 ml/min
Viscosity range 0.3 – 1,000 mPas
Precision CV < 1 % (Coefficient of variation CV)
Velocity range 300 – 6,000 rpm
Fluid connection 3/8" NPT internal thread, lateral
Wetted parts Pump case alloy C22 (2.4602), optional: stainless steel 316L; seals FFKM (Kalrez® Spectrum™ 6375), optional: FPM, EPDM; shaft/bearing sintered silicon carbide (SSiC); bearing and wetted functional parts Al2O3 ceramics; rotors partially stabilized ZrO2, optional: tungsten carbide Ni-based
Motor AC-motor, IEC-Size 056, 4 poles, IP 55, rated voltage 240/400 V, rated frequency 100 Hz, 240 W
Dimensions (L x W x H) 291 x 130 x 171 mm
Weight approx. 11 kg
Temperature protection thermal contact (NC)
Maximum system pressure 60 bar (870 psi) 200 bar * (2900 psi *)
(inlet pressure + differential pressure)
Torque transfer 6-pole NdFeB magnetic coupling
Differential pressure range 0 – 60 bar (870 psi)
Operating temperature range -5 … +60 °C (-20 … +100 °C *)
Displacement volume 192 µl
Remark * depending on accessories,
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 HNP Mikrosysteme. Actual performance may vary.
Specifications are subject to change without notice.




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