Zhongke Duling MPC-5V656A Medical Refrigerated Storage Cabinet

Overview

The Zhongke Duling MPC-5V656A Medical Refrigerated Storage Cabinet is an ISO 13485-aligned, GMP-supporting cold storage solution engineered for reliable, stable preservation of temperature-sensitive biological materials—including vaccines, reagents, blood components, pharmaceuticals, and clinical specimens—in hospital pharmacies, central laboratories, blood banks, and biobanking facilities. Designed to maintain a tightly controlled 2°C–8°C operating range—consistent with WHO guidelines for vaccine storage and USP <797> requirements for sterile compounding—the unit employs forced-air circulation with rear-mounted blower technology to ensure uniform thermal distribution across the entire 656 L storage volume. Unlike static-cool cabinets, its back-blow airflow architecture actively mitigates temperature stratification and cold-spot formation, even when fully loaded with dense or irregularly shaped containers. The cabinet’s structural integrity derives from dual-wall construction with high-density polyurethane foam insulation and light-blocking, vacuum-bonded door panels—minimizing radiant heat ingress and supporting long-term stability under continuous operation.

Key Features

• High-fidelity temperature control system with PID algorithm and dual-sensor redundancy (working sensor + reference sensor in dedicated thermal enclosure) for real-time monitoring of actual load temperature—not just air temperature.
• Five-tier adjustable wire shelving system (10 labeled positions) with reinforced load-bearing capacity; all shelves feature non-slip edges and corrosion-resistant powder-coated finish.
• Integrated alarm suite compliant with IEC 61000-4 electromagnetic immunity standards: audible buzzer + dual-color LED status indicators for temperature excursions, power loss, sensor fault, and unauthorized or prolonged door opening.
• Ergonomic design elements: full-width recessed door handle, concealed mechanical lock, locking casters (two fixed, two swivel with brake), and self-closing door mechanism with adjustable damping to prevent accidental closure damage.
• Single high-efficiency hermetic compressor (imported brand) matched to optimized refrigerant circuitry; energy consumption rated at 310 W under SN/N climate class conditions (10°C–32°C ambient).

Sample Compatibility & Compliance

The MPC-5V656A accommodates standard laboratory and clinical storage configurations—including stacked 50 mL conical tubes, multi-well plates, cryovials in racks, IV bags, and primary vaccine vials—without compromising thermal homogeneity. Its internal geometry (1100 × 454 × 1325 mm) allows unobstructed airflow around tall or wide containers. All wetted surfaces are fabricated from electrophoretically coated steel, offering resistance to common disinfectants (e.g., 70% ethanol, sodium hypochlorite solutions) and preventing microbial adhesion. The unit meets GB/T 20154–2014 (Chinese national standard for medical refrigerators), supports validation per IQ/OQ/PQ protocols, and provides traceable documentation for GLP/GMP audits. Optional calibration certificates (NIST-traceable) and 21 CFR Part 11-compliant electronic log export (via external USB or RS485 interface on upgraded firmware versions) are available upon request.

Software & Data Management

While the base model operates via an embedded microcontroller with local LCD interface, it includes one standardized 12 mm diameter test port positioned at the rear-right corner of the chamber—designed for seamless integration with third-party temperature/humidity data loggers (e.g., Vaisala, Omega, ELPRO). The built-in sensor enclosure ensures that external probes measure temperature at a representative location adjacent to stored product—not within the air stream. Alarm event logs are retained internally for ≥30 days and can be manually exported via USB or viewed directly on-screen with timestamped entries. For enterprise deployment, optional firmware upgrades enable Modbus RTU communication, enabling centralized monitoring through BMS or LIMS platforms without requiring proprietary software.

Applications

• Vaccine storage in hospital immunization centers and public health clinics (aligned with CDC Vaccine Storage and Handling Toolkit recommendations).
• Short-to-medium term storage of diagnostic reagents, monoclonal antibodies, and enzyme conjugates requiring strict 2–8°C compliance.
• Buffer and media preparation staging in cell culture labs prior to autoclaving or filtration.
• Specimen holding for pathology departments awaiting histological processing or molecular analysis.
• Backup cold chain continuity during freezer maintenance or emergency power transitions.

FAQ

Does this unit support 21 CFR Part 11 compliance?
Out-of-the-box functionality does not include electronic signature or audit trail features; however, the test port and alarm logging infrastructure support integration with validated third-party data acquisition systems that provide full Part 11 compliance.

What is the recommended validation frequency for this refrigerator?
Per ISO/IEC 17025 and EU Annex 15, initial qualification (IQ/OQ/PQ) is required before first use; routine operational checks (temperature mapping, door seal integrity, alarm verification) should be performed quarterly, with full requalification every 12 months or after major service events.

Can the shelving configuration be customized?
The standard configuration includes five fixed-height shelf rails supporting ten labeled wire shelves; custom rail spacing or solid stainless-steel shelves are available as factory-installed options under OEM agreement.

Is remote monitoring capability built-in?
No native Ethernet or Wi-Fi module is included; remote oversight requires connection of an external IoT-enabled logger or BMS gateway via the provided test port and power interface.

What is the expected service life under continuous operation?
With scheduled preventive maintenance (condenser cleaning, door gasket inspection, refrigerant pressure verification), the unit is rated for ≥12 years of uninterrupted clinical-grade operation at nominal load conditions.