田枫双门智能超低温冰箱TF-40-458X-WA

Overview

The Tianfeng Dual-Door Intelligent Ultra-Low Temperature Freezer TF-40-458X-WA is an engineered solution for reliable, energy-efficient long-term storage of temperature-sensitive biological and chemical materials at stable sub-zero conditions. Designed specifically for operation within the −15 °C to −40 °C range, this unit employs a dual-stage refrigeration architecture incorporating a high-efficiency imported compressor, optimized condenser heat dissipation (hybrid natural convection + forced-air cooling), and advanced thermal insulation using dual-layer polyurethane foam (≥120 mm thickness). Its operational stability under ambient temperatures up to 32 °C and tolerance to dusty environments make it suitable for diverse laboratory, clinical, and industrial settings—including blood banks, biobanks, vaccine distribution centers, and R&D laboratories handling cell lines, tissue samples, reagents, and electronic components requiring cryostatic preservation.

Key Features

• Stainless steel (304 grade) interior and inner door construction—corrosion-resistant, non-porous, and compliant with GLP cleaning protocols;
• Four independently sealed inner doors minimize cold air loss during frequent access, preserving chamber uniformity and reducing compressor cycling;
• Three height-adjustable stainless steel shelves accommodate variable sample container configurations (e.g., cryoboxes, vials, bags);
• Radius-corner internal geometry facilitates complete decontamination and residue-free cleaning per ISO 15189 and CLSI guidelines;
• Hybrid condenser system—50% natural convection + 50% fan-assisted airflow—ensures continued operation even with partial dust accumulation on fin surfaces;
• Low-noise operation (≤57 dB[A] at 1 m) achieved via vibration-dampened mounting, acoustic insulation, and low-RPM condenser fans;
• Integrated mechanical door lock and power switch lock for controlled access and safety compliance in regulated environments;
• Optional RS-232 serial interface enables connection to lab information management systems (LIMS) or centralized monitoring platforms for audit-trail-capable temperature logging;
• Non-ozone-depleting refrigerant formulation aligned with Montreal Protocol Phase-Out schedules and EU F-Gas Regulation (EC No. 517/2014);
• Compact vertical footprint (2110 mm H × 885 mm W × 1095 mm D) optimized for standard laboratory doorways and elevator transport (total height ≤1890 mm including casters).

Sample Compatibility & Compliance

This freezer supports storage of primary and secondary biological specimens—including whole blood, PBMCs, plasma, serum, microbial cultures, viral vectors, RNA/DNA extracts, and cryopreserved tissues—as well as thermolabile reagents, standards, and calibration materials. Internal volume (458 L net) and chamber dimensions (1380 × 500 × 660 mm) accommodate standard 100-mm cryoboxes stacked six-high, ISO Class 5 cleanroom-compatible racks, and modular cryo-storage systems. The unit complies with ISO 9001:2000 quality management requirements for design, production, and service delivery. While not inherently 21 CFR Part 11–validated, its optional RS-232 interface supports integration into validated workflows when paired with compliant data acquisition software and procedural controls (e.g., defined user roles, electronic signatures, audit trails).

Software & Data Management

The TF-40-458X-WA operates without embedded touchscreen or proprietary firmware; instead, it relies on robust electromechanical temperature control with analog/digital hybrid monitoring. The optional RS-232 port provides asynchronous serial output of real-time cabinet temperature, alarm status, and compressor runtime—compatible with third-party SCADA systems, LabVIEW-based dashboards, or custom Python/Node-RED logging scripts. For institutions requiring ALCOA+ data integrity, external USB or Ethernet-connected temperature loggers (e.g., ELPRO, DeltaTRAK) may be deployed alongside the unit to generate GxP-compliant PDF reports with time-stamped events, deviation alerts, and electronic signatures. Routine calibration verification follows ASTM E74 or ISO/IEC 17025 procedures using NIST-traceable reference thermistors.

Applications

• Blood banking: Long-term storage of frozen red blood cells (−18 °C to −30 °C), fresh frozen plasma (−18 °C minimum), and cryoprecipitate;
• Vaccine logistics: Holding stability-critical formulations (e.g., mRNA-LNPs, live-attenuated viruses) prior to distribution;
• Biobanking: Preservation of human biospecimens under ISO 20387:2018-compliant infrastructure;
• Pharmaceutical QC: Storage of reference standards, stability batches, and potency assay reagents;
• Materials science: Low-temperature conditioning of polymers, superconductors, and semiconductor wafers;
• Marine biotechnology: Cryo-storage of deep-sea microbial isolates and enzyme libraries;
• Academic research: Supporting cryo-EM sample preparation, CRISPR library archiving, and stem cell banking protocols.

FAQ

What is the recommended ambient operating environment?
The unit is rated for continuous operation at ambient temperatures between 10 °C and 32 °C, with relative humidity ≤80% non-condensing. Installation requires ≥100 mm clearance at rear and sides for thermal management.
How often should the condenser filter be cleaned?
Under typical laboratory conditions, inspect and vacuum the removable dust filter every 3 months; increase frequency in high-particulate environments (e.g., animal facilities, manufacturing floors).
Can this freezer maintain −40 °C with full load and frequent door openings?
Yes—its thermal mass, dual-door architecture, and rapid recovery algorithm (≤30 min from −20 °C to −40 °C after 30-sec door opening) ensure compliance with USP and ISO 15189 cold chain continuity requirements.
Is validation support documentation available?
Factory test reports (IQ/OQ templates, temperature mapping protocols, and calibration certificates) are provided upon request. Field qualification must be performed per site-specific SOPs using qualified sensors and accredited providers.
Does the unit include remote alarm notification capability?
No built-in network connectivity; however, the RS-232 output can interface with external alarm modules supporting SMS/email alerts via PLC or IoT gateways.