HNP-MZR-7241 Micro Gear Pump
| Brand | HNP-M |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | MZR-7241 |
| Pricing | Available Upon Request |
Overview
The HNP-MZR-7241 Micro Gear Pump is a precision-engineered, modular positive displacement pump designed for accurate metering and controlled delivery of low-to-medium viscosity fluids across demanding laboratory, pilot-scale, and industrial process applications. Based on rotary micro annular gear technology—valveless, pulse-free, and inherently self-priming—the MZR-7241 operates via a precisely meshed gear set rotating within a toroidal chamber, generating consistent volumetric displacement per revolution. This principle ensures high repeatability and minimal shear, making it especially suitable for sensitive or shear-thinning media. Unlike peristaltic or diaphragm pumps, the MZR-7241 delivers true continuous flow without check valves or pulsation artifacts, supporting stable dosing in closed-loop systems, inline analytical setups, and automated fluid handling platforms.
Key Features
- Valveless rotary annular gear mechanism ensures smooth, pulse-free flow with no dead volume or backflow risk
- High dosing accuracy: coefficient of variation (CV) < 1% at low flow rates (e.g., ≤ 10 mL/min), validated per ISO 5725-2
- Robust wetted materials: stainless steel/hard metal gears; pump housing options in aluminum, tungsten steel, Hastelloy C-22, or technical ceramics (Al₂O₃/ZrO₂)
- Compact footprint: 128 mm length, enabling integration into space-constrained instrumentation (e.g., HPLC auxiliary modules, microreactors, or portable analyzers)
- Intelligent drive control: integrated microcontroller with DC servo motor enables precise speed regulation (0.1–300 rpm typical range), real-time torque monitoring, and programmable start/stop profiles
- Chemical compatibility: engineered for non-lubricating, aggressive, and low-surface-tension fluids—including deionized water, aqueous buffers, organic solvents (e.g., acetone, THF), oils, lubricants, dyes, and adhesives
Sample Compatibility & Compliance
The MZR-7241 accommodates fluids with dynamic viscosities ranging from 0.3 mPa·s (deionized water) to >1,000 mPa·s (medium-viscosity oils), provided appropriate material selection is applied (e.g., ceramic components for highly corrosive or abrasive media). It is not recommended for entrained solids (>10 µm) or gaseous phases. The pump complies with CE marking requirements under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. While not certified for ATEX or IECEx hazardous areas, its design supports integration into systems compliant with ISO 13849-1 (PL d) safety architectures when used with external safety controllers. Material certifications (e.g., FDA-compliant elastomers upon request, EN 10204 3.1 material test reports) are available for GMP-relevant installations.
Software & Data Management
The MZR-7241 communicates via RS-485 (Modbus RTU) or optional CANopen interface, enabling seamless integration with SCADA, PLC, or LabVIEW-based control environments. Firmware supports bidirectional command/response protocols for speed setting, direction control, status reporting (temperature, current draw, error flags), and runtime logging. When deployed in regulated environments (e.g., pharmaceutical QC labs), the pump’s operational parameters—including speed setpoints, cumulative volume, and fault timestamps—can be logged externally with full audit trail capability, aligning with ALCOA+ data integrity principles and supporting compliance with FDA 21 CFR Part 11 when paired with validated software layers.
Applications
- Chemical process development: precise reagent dosing in flow chemistry reactors and catalyst screening systems
- Industrial equipment engineering: lubricant metering in precision machinery, adhesive dispensing in packaging lines, and ink delivery in digital printing platforms
- Materials science labs: controlled delivery of polymer solutions, nanofluids, or conductive inks in coating and deposition workflows
- Environmental and water analysis: low-flow sampling and standard addition in ICP-MS or ion chromatography pre-concentration modules
- Biotechnology: buffer exchange in microfluidic cell culture systems and serial dilution automation where contamination risk must be minimized
FAQ
What is the minimum achievable flow rate with the MZR-7241?
Typical minimum stable flow is 0.05 mL/min (dependent on fluid viscosity, backpressure, and motor resolution); calibration at ultra-low rates requires gravimetric verification per ASTM D3427.
Can the MZR-7241 handle abrasive slurries?
No—solid particles exceeding 10 µm or high-abrasion media (e.g., silica suspensions) will accelerate wear; use only with filtered, particle-free liquids.
Is the pump suitable for sterile or cleanroom applications?
Yes—when configured with electropolished stainless steel and ceramic components, and installed with ISO 14644-compliant tubing and fittings, it meets Class 5 (ISO 5) cleanroom compatibility requirements.
Does the MZR-7241 support variable-speed programming?
Yes—via Modbus register commands or analog 0–10 V input; ramp profiles, dwell times, and multi-step sequences can be implemented externally.
What maintenance intervals are recommended?
Under normal operation (≤ 8 h/day, non-aggressive media), inspection every 6 months and gear clearance verification annually are advised per manufacturer service bulletin SB-MZR-2023-01.
