HNPM MZR-11507 Micro Annular Gear Pump

Overview

The HNPM MZR-11507 Micro Annular Gear Pump is a precision-engineered positive displacement pump designed for demanding laboratory and pilot-scale fluid handling applications requiring high accuracy, low pulsation, and extended operational stability. Based on rotary micro annular gear technology, it operates via two intermeshing, non-contacting tungsten carbide gears rotating within a precisely machined stainless steel (316L) housing — generating consistent volumetric displacement per revolution without internal sliding friction or valve mechanisms. This architecture eliminates the shear sensitivity and flow variability typical of peristaltic or diaphragm pumps, making the MZR-11507 especially suitable for shear-thinning polymers, suspensions, gels, and low-lubricity solvents such as methanol, acetone, or hydrocarbon-based adhesives. Its ability to sustain pressure differentials up to 140 bar at higher viscosities — while maintaining CV <1% repeatability across its full 29–1152 mL/min flow range — positions it as a primary choice for quantitative dosing, continuous feed in HPLC/GPC systems, catalyst injection in flow chemistry reactors, and high-integrity formulation transfer under GLP or GMP-aligned workflows.

Key Features

• Ultra-precise dosing with coefficient of variation (CV) <1%, validated per ISO 5725-2 for reproducibility under steady-state conditions
• Tungsten carbide (WC) rotors and bearings ensure exceptional wear resistance and dimensional stability over >10,000 operating hours, even with abrasive or low-lubricity media
• Brushless 3-phase AC motor with integrated encoder enables closed-loop speed control and real-time RPM feedback, supporting traceable process documentation
• Low-pulsation output (<2% peak-to-peak amplitude at rated flow), minimizing downstream pressure fluctuations critical for sensitive detectors or microfluidic interfaces
• Compact footprint (303 × 110 × 171 mm) and lightweight design (9.3 kg) facilitate integration into automated workstations, gloveboxes, or modular synthesis platforms
• Wide chemical compatibility: wetted parts include ASTM A276 Grade 316L stainless steel, UNS N10276 (Alloy C276), graphite-reinforced PTFE seals, and FPM elastomers — compliant with USP Class VI and FDA 21 CFR 177.2400 for pharmaceutical contact

Sample Compatibility & Compliance

The MZR-11507 handles fluids spanning 0.3–150,000 mPa·s viscosity — from volatile solvents (e.g., THF, ethanol) to highly viscous pastes (e.g., silicone gels, epoxy prepolymers). Its self-priming capability and dry-run tolerance (up to 30 s at ≤2000 rpm) reduce startup complexity. All wetted materials meet EN 10204 3.1 material certification requirements. The pump complies with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), IP55 ingress protection, and RoHS 2011/65/EU. Optional configurations support ATEX Zone 2 (gas) or IECEx certification for hazardous environments. For regulated environments, the motor’s encoder interface supports audit-trail-capable SCADA integration aligned with FDA 21 CFR Part 11 electronic record requirements when paired with compliant host software.

Software & Data Management

While the MZR-11507 operates standalone via analog 0–10 V or 4–20 mA speed input, it is fully compatible with industrial automation protocols including Modbus RTU (RS-485) and CANopen (DS301). HNPM provides a Windows-based configuration utility (PumpControl Suite v3.2) enabling parameter logging, ramp profiling, dose counter tracking, and CSV export of timestamped flow/speed/temperature events. All data fields are time-stamped with millisecond resolution and support digital signature verification. Firmware updates preserve calibration coefficients stored in non-volatile EEPROM — ensuring metrological continuity across maintenance cycles. Audit logs record user actions, configuration changes, and thermal fault events, satisfying ALCOA+ data integrity principles.

Applications

• Accurate reagent delivery in continuous-flow organic synthesis and electrochemical reactors
• Consistent metering of UV-curable adhesives and conductive inks in microdispensing stations
• Stable mobile phase supply for preparative and analytical liquid chromatography systems
• Controlled feeding of catalyst slurries (e.g., Pd/C, Ni nanoparticles) into trickle-bed reactors
• Calibration fluid transfer in viscometer and rheometer validation protocols (ASTM D2196, ISO 3219)
• High-fidelity dosing in pharmaceutical formulation development where batch-to-batch consistency is governed by ICH Q5C and Q7 guidelines

FAQ

What is the minimum controllable dose volume?
The MZR-11507 achieves repeatable single-shot dispensing down to 100 µL, leveraging its 192 µL/rev displacement and encoder-synchronized start/stop control.
Can it handle abrasive suspensions without performance degradation?
Yes — the WC rotor/bearing system maintains dimensional integrity after >5,000 hours of operation with silica-filled polymer dispersions (tested per ISO 11171).
Is temperature-controlled operation supported?
Standard units operate from −5 to +60 °C fluid temperature; optional jacketed housings with PID-controlled heating/cooling enable operation from −20 to +120 °C.
How is calibration traceability maintained?
Each unit ships with a factory calibration certificate (ISO/IEC 17025 accredited lab), referencing NIST-traceable gravimetric flow standards measured at 5 defined points across the speed range.
Does it comply with FDA 21 CFR Part 11 for electronic records?
The pump itself is hardware-compliant; full Part 11 compliance requires integration with validated host software that enforces electronic signatures, audit trails, and role-based access — capabilities supported via Modbus and PumpControl Suite.