Mocon MAP Mix 9001 ME Proportional Gas Mixing System for Modified Atmosphere Packaging
| Brand | Mocon |
|---|---|
| Origin | Denmark |
| Model | MAP Mix 9001 ME |
| Gas Channels | 2 or 3 |
| Flow Range | 20–400 L/min (40–850 SCFH) |
| Max Output Pressure | 6 bar |
| Input Pressure Range | 5.5–10 bar (varies by configuration) |
| Accuracy | ±2% (at 15–100% flow, 10–90% blend ratio) |
| Housing Material | Stainless Steel |
| Compliance | CE-marked |
| Dimensions (D×H×W) | 420 × 194 × 235 mm |
| Weight | 10–12 kg |
Overview
The Mocon MAP Mix 9001 ME is a precision-engineered proportional gas mixing system designed specifically for modified atmosphere packaging (MAP) applications in food, pharmaceutical, and medical device manufacturing. It operates on the principle of pressure-compensated mass flow blending—leveraging calibrated orifices and regulated inlet pressures to deliver stable, repeatable gas mixtures without reliance on electronic flow controllers or external power for core mixing functionality. Unlike pre-mixed cylinder gases—which incur premium pricing, logistical complexity, and compositional drift over time—the MAP Mix 9001 ME enables on-site blending of high-purity individual gases (e.g., N₂, CO₂, O₂) directly at the packaging line. This eliminates waste, reduces gas inventory costs, and ensures full traceability of blend composition per batch. Its mechanical architecture supports integration with thermoforming, tray-sealing, and flow-wrap packaging machinery, delivering consistent atmosphere control critical for shelf-life extension and microbial inhibition.
Key Features
- Proportional blending mechanism with inherent pressure compensation—maintains blend accuracy despite minor fluctuations in inlet supply pressure
- Manual, intuitive knob-based adjustment for precise setting of gas ratios (e.g., 80% N₂ / 20% CO₂) and total flow rate
- Integrated audible alarm system triggered by low inlet pressure, ensuring immediate operator awareness and optional machine interlock shutdown
- Stainless steel housing compliant with ISO 22000 hygiene requirements and suitable for washdown environments
- Three configuration variants: buffer-tank version (for tray sealers), pressure-stabilized version (for thermoformers), and flow-regulated version (for vertical form-fill-seal machines)
- No external power required for primary mixing function—enhances reliability and simplifies validation under GMP conditions
- CE-marked design meeting essential health and safety requirements of Directive 2014/30/EU (EMC) and 2014/35/EU (LVD)
Sample Compatibility & Compliance
The MAP Mix 9001 ME is compatible with USP-grade nitrogen, carbon dioxide, and oxygen supplied from certified high-pressure cylinders (ISO 8573-1 Class 2 compressed air quality recommended for instrument air). It supports all standard MAP gas combinations used in fresh meat, cheese, bakery, and ready-to-eat meal packaging. The system complies with key industry standards including EN 13828 (packaging machinery safety), ISO 8573-7 (gas purity verification), and FDA 21 CFR Part 11–ready documentation protocols when paired with Mocon’s optional data logging accessories. While the base unit itself does not require software validation, its mechanical repeatability and alarm-triggered process interruption support GLP/GMP audit trails for packaging line qualification (IQ/OQ/PQ).
Software & Data Management
The MAP Mix 9001 ME is a standalone analog device with no embedded firmware or digital interface. All operational parameters—including setpoint ratios, flow rates, and alarm thresholds—are adjusted manually via front-panel rotary controls and verified using integrated mechanical pressure gauges. For regulatory traceability, users may pair the unit with Mocon’s optional MAP Check™ portable analyzer or third-party data acquisition systems via analog 4–20 mA outputs (available on upgraded configurations). Audit-ready records—including gas consumption logs, alarm event timestamps, and maintenance history—can be maintained externally in accordance with ISO 9001:2015 Clause 7.5.3 and ICH Q7 Annex 19 documentation practices.
Applications
- Thermoformed tray sealing lines for chilled ready meals and fresh-cut produce
- Flow-wrap packaging of baked goods, confectionery, and dry snacks
- Chamber-based vacuum-gas flush systems for coffee, nuts, and pet food
- Pharmaceutical blister packaging requiring inert atmospheres (e.g., moisture-sensitive tablets)
- R&D laboratories validating new MAP formulations prior to scale-up
- Contract packaging facilities managing multiple SKUs with varying gas specifications
FAQ
Does the MAP Mix 9001 ME require electrical power to operate the gas mixing function?
No—the core proportional mixing mechanism is fully mechanical and pressure-driven; only the optional alarm buzzer and analog output modules require low-voltage DC power.
Can it be validated for use in FDA-regulated pharmaceutical packaging?
Yes—its deterministic mechanical design, CE marking, stainless steel construction, and alarm-interrupt capability support IQ/OQ execution per ASTM E2500 and ISPE GAMP 5 guidelines.
What is the minimum detectable change in blend ratio?
The calibrated knobs provide discrete 1% incremental adjustments across the 10–90% range, with verified repeatability within ±2% as specified in Mocon’s factory calibration certificate.
Is routine recalibration required?
Not under normal operating conditions; the device is factory-calibrated and requires only periodic visual inspection of seals and pressure gauges per Mocon’s Maintenance Schedule M-9001-REV4.
How does it handle gas supply interruptions during operation?
A sustained drop below the minimum inlet pressure threshold activates both audible alarm and optional dry-contact output, enabling direct integration with PLC-controlled packaging machine stop logic.

