Micro annular gear pump mzr-11558

For micro reaction technology and flow chemistry

The mzr-11558 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.


  • High resistance to corrosion
    oxidizing and reducing media, acids and bases
  • Hermetically sealed
    magnetic coupling (NdFeB)
  • Long service life
    wear-resistant tungsten carbide
  • Chemically inert pump head
    alloy C22, SSiC, Al2O3 and ZrO2-ceramics
  • Dynamic precision motor
    brushless DC-motor with encoder
  • High differential pressures
    achievable even for low viscosity liquids
  • Low pulsation
    rotary micro annular gear technology, no valves
  • Flow chemistry
  • Microreaction technology
  • Mini plant technology

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
Flow rate 0.19 – 1152 ml/min
Viscosity range 0.3 – 1,000 mPas
Precision CV < 1 % (Coefficient of variation CV)
Velocity range 1 – 6000 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 Brushless DC-motor, IP 54, 42 V DC, max. 368 W
Dimensions (L x W x H) 301 x 130 x 129 mm
Weight approx. 11 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
Maximum system pressure 60 bar (870 psi) 200 bar * (2900 psi *)
(inlet pressure + differential pressure)
Differential pressure range 0 – 30 bar (1 mPas); 0 – 60 bar (above 16 mPas)
Operating temperature range -5 ... +60 °C (-20 ... +100 °C *)
Displacement volume 192 µl
Smallest dosage volume 100 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.

File Language Size
Manual mzr-11558
Manual mzr-11558 (1.6 MB)
Betriebsanleitung mzr-11558 (1.7 MB)
1.6 MB
Micro annular gear pump mzr-11558
Micro annular gear pump mzr-11558 (96 KB)
Mikrozahnringpumpe mzr-11558 (98 KB)
Micropompe gérotor mzr-11558 (98 KB)
96 KB