Micro Annular Gear Pumps

HNP Mikrosysteme's mzr® micro annular gear pumps are engineered for the precise dosing and metering of small volumes of liquids, ranging from low to high viscosity. These compact, high-precision pumps are ideal for applications requiring accurate, low-pulsation fluid delivery. 

Key Features

• High Precision Dosing: Capable of dispensing volumes as small as 0.25 µL with flow rates from 1 µL/h to 1.1 L/min, and pressures up to 150 bar. 
• Broad Viscosity Range: Handles fluids with viscosities between 0.3 and 1,000,000 mPas. 
• Low Pulsation and Shear Stress: Ensures gentle handling of sensitive fluids. 
• Compact and Lightweight Design: Facilitates easy integration into various systems.
• Durable Construction: Made with wear and corrosion resistant materials for long service life. 
• Explosion-Proof Options: Available for operation in hazardous environments. 

Pump Series Overview

1. High Performance Series
   • Flow Rates: 0.0015 to 1,152 mL/min.
   • Pressure: Up to 100 bar.
   • Viscosity: 0.3 to 1,000,000 mPas.
   • Materials: Stainless steel construction.
   • Applications: Suitable for challenging dosing tasks requiring high precision and handling of high temperatures and viscosities. 
2. Low Pressure Series
   • Flow Rates: 0.3 to 72 mL/min.
   • Minimum Dispensing Volume: 0.25 µL.
   • Pressure: Up to 3 bar.
   • Materials: Wear-resistant tungsten carbide or ceramic wetted components.
   • Applications: Ideal for analytical instrumentation requiring precise dosing at low pressures. 
3. Hermetic Inert Series
   • Flow Rates: 0.024 to 1,152 mL/min.
   • Pressure: Up to 60 bar.
   • Viscosity: 0.3 to 1,000 cP.
   • Materials: Hastelloy-C construction with SiC and tungsten carbide wetted parts.
   • Applications: Designed for aggressive, hard-to-handle liquids requiring leak-free magnetic couplings. 
4. Modular Pump Series
   • Customization: Pump bodies and rotors can be combined from different materials based on the liquid to be conveyed.
   • Materials: Options include zirconia-based ceramic, nickel-based tungsten carbide, alloy C22, stainless steel 316L, aluminum, and PEEK™.
   • Applications: Suitable for light corrosive liquids in analytical instrumentation and chemistry applications. 
5. Magnetic Hermetic Pump Series
   • Design: Features a liquid-separating cup surrounding the magnetic drive, eliminating the need for a shaft seal.
   • Applications: Ideal for handling crystallizing, air  or moisture sensitive liquids where leak-free operation and long service life are critical. 
6. Ex-Version Pumps
   • Certification: Available with Ex-approval for use in areas with potential explosion risk, complying with ATEX according to EU Directive 94/9/EC.
   • Applications: Suitable for environments requiring explosion-proof equipment. 

Typical Applications

• Life Sciences: Analytical instrumentation, biotechnology, and pharmaceutical processes. 
• Chemical Processing: Precise dosing of chemicals in various industrial processes.
• Mechanical and Plant Engineering: Integration into complex machinery requiring accurate fluid handling. 
• Emerging Technologies: Fuel cells, organic electronics, and aerospace applications.