Labonce Labonce-400FC Pharmaceutical Low-Temperature Stability Chamber

Overview

The Labonce Labonce-400FC Pharmaceutical Low-Temperature Stability Chamber is an engineered environmental test system designed specifically for long-term stability studies and cold-chain storage of temperature-sensitive pharmaceuticals, biologics, reference standards, and clinical trial materials under controlled sub-zero conditions. Operating at a nominal setpoint of –25 °C ±2 °C, the chamber employs a robust dual-stage forced-air circulation system to maintain precise thermal conditions across its 400-liter working volume. Its design adheres to the performance and safety requirements outlined in YY/T 0086–2020, the Chinese industry standard for medical refrigerated cabinets—making it suitable for use in GLP-compliant laboratories, QC/QA departments, and regulatory submission-supporting environments where traceability and reproducibility are critical.

Key Features

• High-efficiency refrigeration architecture featuring an imported hermetic industrial compressor, delivering stable cooling capacity with low acoustic emission (<55 dB[A]) and extended service life under continuous operation.
• Optimized air distribution system with multi-directional airflow ducts ensures uniform temperature distribution (≤2.0 °C uniformity) and minimal vertical/horizontal gradients—even during door openings or load changes.
• Structural integrity supported by 80 mm thick high-density polyurethane insulation (foamed-in-place), minimizing thermal bridging and reducing energy consumption while maintaining humidity retention.
• Corrosion-resistant interior constructed entirely from electropolished AISI 304 stainless steel with seamless welding and radiused corners—ensuring cleanability, chemical resistance, and zero leachable contaminants.
• Programmable 7-inch color touchscreen controller with real-time graphing, event logging, and audit trail functionality; supports user-defined profiles, ramp/soak cycles, and password-protected access levels (operator, supervisor, administrator).
• Comprehensive safety suite including compressor overheat and high-pressure cut-off, independent high/low temperature alarms, door ajar detection, and optional remote SMS notification via GSM module for out-of-specification events or mains failure.

Sample Compatibility & Compliance

The Labonce-400FC accommodates standard pharmaceutical packaging formats—including vials, trays, blister packs, and secondary cartons—within its adjustable stainless-steel shelving system (3 standard shelves, load-rated to 25 kg per shelf). Its internal geometry allows for unobstructed airflow around stacked samples without compromising thermal homogeneity. The chamber meets YY/T 0086–2020 for medical refrigeration equipment and is compatible with ICH Q5C stability testing guidelines when operated within validated protocols. While not pre-certified to ISO 14644 or ASTM E2500, its construction, documentation support package, and data integrity features enable qualification per GMP Annex 15 and FDA 21 CFR Part 11 requirements when integrated into a site-specific validation framework.

Software & Data Management

Data recording is performed continuously at user-configurable intervals (1–60 minutes), with timestamped entries stored internally for ≥12 months. All logged parameters—including chamber temperature, setpoint, compressor status, alarm history, and user login events—are exportable via USB to CSV format for review in Excel or LIMS integration. The controller supports electronic signatures, change control tracking, and role-based permissions to satisfy ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Optional RS485 Modbus RTU interface enables centralized monitoring through building management systems (BMS) or SCADA platforms.

Applications

• ICH-guided long-term and accelerated stability testing of APIs and finished dosage forms at –25 °C.
• Cold-chain validation support for frozen drug products requiring transport or storage below –20 °C.
• Controlled environment storage of monoclonal antibodies, mRNA intermediates, viral vectors, and other thermolabile biologics.
• Reference standard preservation in analytical laboratories conducting HPLC, GC, or dissolution testing.
• Environmental stress screening of packaging materials under low-temperature mechanical loading.
• Supporting regulatory submissions requiring documented evidence of thermal stability per USP , , and EU GDP Annex 9.

FAQ

What is the recommended validation protocol for this chamber?
Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) should follow ISO 14644-3 and ASTM E2500 guidance, using calibrated NIST-traceable sensors placed at nine predefined locations per ICH Q5C.

Can the Labonce-400FC be connected to a laboratory network for remote monitoring?
Yes—via optional Ethernet or RS485 Modbus interface, enabling integration with enterprise monitoring software or cloud-based environmental surveillance platforms.

Is the unit compliant with FDA 21 CFR Part 11 for electronic records?
The embedded controller supports audit trails, electronic signatures, and data integrity controls required under Part 11; full compliance depends on site-specific SOPs, system configuration, and validation documentation.

What maintenance schedule is recommended for sustained performance?
Compressor oil inspection every 24 months, condenser coil cleaning quarterly, door gasket integrity check semiannually, and annual calibration verification using certified reference thermometers.

Does the chamber support automated defrost cycles?
Yes—the Labonce-400FC features intelligent adaptive defrost logic that initiates only when frost accumulation is detected, minimizing thermal disturbance and energy use.