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Precision Micro Gear Pump
MRB Micro Gear Pump / Small Flow

MRB Micro Gear Pumps can solve the working situation of 400ml-4800ml/min flow, 0.5-25bar pressure difference and 0.4-3000m.Pas viscosity (similar to water).The pump can withstand a pressure of 4 MPa.

JONSN precision micro gear pump circulation pressurization systems, automatic feeding (dosing) systems, sampling equipment (including vacuum environment sampling), laboratory 

Equipment, cooling systems (refrigerant circulation pumps), Hemodialysis and Peritoneal Dialysis ,casting machinery, Packaging machinery, cleaning systems, additives filling systems, chemical metering systems, small test/pilot test equipment, etc., require small flow, high pressure difference, no leakage, stable flow, precise metering, and no pulsation transfer pump.

When you choose JONSN pumps, you have already chosen quality. JONSN has been working on internal quality for 12 years. It has been recognized by the industry, owners, and design institutes. Welcome to our factory for visits and exchanges!

image Flow Test Video

imageHigh Pressure Spray Test Video

imageVacuum Test Video

imagePressure Resistance Test Video

  • Products Characters
  • Specification
  • Data Download
  • Max. Flow

  • Max. Pressure

  • Temperature Range

  • Viscosity Range

  • Max. Density

Micro Gear PumpMotor Speed(rpm)
Model No.

Connection Size

MRB 10/161/4
MRB 12/160.9001.1521.7403.4203.960
MRB 17/161.2751.6322.4654.8455.610
MRB 19/161.4251.8242.7555.4156.270

 Pump Theoretical Flow(L/min)
MR series Microgearpumps-Catalogue Pdf

Product Features

The advantages of JONSN precision micro gear pumps are as follows:

■   No pulse accurate delivery – Positive displacement pump provide continuous accurate delivery through the gears, delivery accuracy can reach +/-0.5% with the servo or stepper motor.
■   Strong vacuum suction, high pressure and smooth delivery, can realize the low viscosity liquid delivery in middle & high pressure.
■   No leakage – Magnetic drive and static O-ring can ensure the inside pump medium isolated from the outside.
■   Excellent workmanship and MD – The designs optimize the gear shaft, pump body flow channel, and longer service life. We have lean manufacturing idea and adopt advanced processing technology & exquisite workmanship. It is an external gearing pump designed & manufactured for high-end application.
■   Model selection specialization – We have rich operating experience in thousands of micro gear pump, accumulate lots of experiment data, specialize in selection evaluation, and formulate solution to reduce risks for you.

Working Principle

micro small flow pump WORKING PRINCIPLE

Pump Material Configuration Code



Performance Curve


gear pump china PERFORMANCE REF. CURVE

micro gear pump PERFORMANCE

performance parameter


  • Sorting date: Aug 11, 2021
    Micro Gear Pump Operating Manual
    pdf:4.83 MB
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  • Sorting date: Aug 11, 2021
    Micro Gear Pumps-Catalogue
    pdf:22.29 MB
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  • Sorting date: Aug 11, 2021
    Micro Gear Pump Performance Curve
    pdf:4.64 MB
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  • Sorting date: Dec 09, 2021
    Wiring Instructions for Brushless DC Motor
    pdf:567.79 KB
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  • Sorting date: Aug 11, 2021
    Micro Gear Pump Assembly Debugging Notes
    pdf:5.25 MB
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Application area