Shanghai Tianfeng TF-CX-2 Multi-Function Chromatography Refrigerator

Overview

The Shanghai Tianfeng TF-CX-2 Multi-Function Chromatography Refrigerator is an engineered environmental chamber specifically designed for low-temperature chromatographic separation workflows in life science laboratories. It operates on a precision air-cooled refrigeration principle, utilizing a high-efficiency imported compressor and a purpose-built airflow management system to maintain stable thermal conditions across its 1230 L internal volume. Unlike standard cold storage units, the TF-CX-2 integrates structural and control features essential for active laboratory use—including vertical clearance for column installation, integrated mounting hardware, and electrical infrastructure compatible with analytical instrumentation. Its operational range of 1–10 °C meets the stringent thermal requirements of biomolecular purification protocols involving enzymes, peptides, nucleic acids, and large-format proteins—applications where even transient temperature excursions can compromise binding kinetics, elution profiles, or sample integrity.

Key Features

• Stainless steel interior construction (304-grade) ensures corrosion resistance, ease of decontamination, and compliance with GLP hygiene standards for repeated use in regulated environments.
• Dual-function configuration supports both active chromatography operations and passive cold storage—enabling seamless transition between experimental and archival modes without equipment reconfiguration.
• Engineered airflow architecture includes a dedicated ducted circulation system that prevents short-circuiting and delivers uniform cold air distribution across the full height (1500 mm), minimizing vertical temperature gradients (<±1 °C deviation).
• Full-view double-glazed doors with anti-fog coating provide unobstructed visual monitoring while maintaining thermal insulation integrity—critical during prolonged fraction collection or real-time system checks.
• Integrated infrastructure includes two vertical stainless steel support columns, two load-rated open trays, built-in LED task lighting, UV-C disinfection lamp, and dual-position AC power outlets (upper and lower) for direct connection of peristaltic pumps, fraction collectors, or detectors.
• Intelligent microprocessor-based temperature controller features real-time LCD readout, setpoint adjustment in 0.1 °C increments, programmable alarm thresholds, and audible/visual over-temperature differential alerting.
• Mobile base with locking casters allows safe relocation within shared lab spaces; rear service access simplifies maintenance without requiring full cabinet disassembly.

Sample Compatibility & Compliance

The TF-CX-2 accommodates standard chromatography hardware including gravity-fed and low-pressure FPLC systems, preparative columns up to 50 mm diameter, and multi-liter buffer reservoirs. Its internal dimensions (1200 × 665 × 1500 mm) permit upright column orientation and manual manipulation without obstruction. The unit complies with ISO 9001:2000 quality management system requirements and adheres to IEC 61000-6-3 (EMC emission) and IEC 61000-6-2 (immunity) standards. While not certified to UL/CSA or EN 61010-1 for Class I hazardous locations, it meets general laboratory safety expectations for non-explosive ambient use. For GxP-aligned labs, the digital temperature log (via optional RS485 interface) supports audit-ready data capture when integrated with validated environmental monitoring software.

Software & Data Management

The embedded controller does not include onboard data logging as standard; however, the RS485 serial interface enables integration with third-party environmental monitoring platforms (e.g., DeltaTrak, DicksonOne, or LabVantage) for time-stamped temperature recording, alarm event tracking, and PDF report generation. When deployed in FDA-regulated settings, the system may be qualified under 21 CFR Part 11-compliant infrastructure—provided the connected software implements electronic signatures, audit trails, and user access controls. Optional analog voltage output (0–5 V DC) is available for connection to building management systems (BMS) or PLC-based facility-wide monitoring networks.

Applications

• Preparative and analytical chromatography of thermolabile biomolecules—including affinity, ion-exchange, size-exclusion, and hydrophobic interaction chromatography (HIC).
• Long-term storage of purified protein fractions, monoclonal antibodies, plasmid DNA, and enzyme preparations at controlled 2–8 °C conditions.
• Buffer and reagent cold staging prior to HPLC/UPLC injection sequences to minimize thermal degradation and column backpressure fluctuations.
• Support environment for benchtop electrophoresis apparatus, gel documentation systems, and low-temperature centrifugation accessories.
• Controlled-temperature staging area for QC/QA sample handling in pharmaceutical development labs operating under ICH Q5C stability guidelines.

FAQ

What is the minimum sustained operating temperature?
The unit maintains stable operation down to 1 °C under standard ambient conditions (≤30 °C, ≤60% RH). Sustained sub-1 °C operation is not supported.

Can the shelving configuration be customized?
Yes—standard configuration includes three 620 × 500 mm stainless steel shelves with infinite height adjustability via pre-punched guide slots. Additional shelves or custom tray depths are available upon request.

Is remote monitoring supported out of the box?
No—RS485 communication requires external gateway hardware and configuration. Ethernet or Wi-Fi connectivity is not natively integrated.

Does the unit meet ISO 5 class cleanroom compatibility requirements?
While constructed with non-shedding, non-porous surfaces, the TF-CX-2 lacks HEPA filtration and positive pressure control; therefore, it is not suitable for ISO 5 or higher cleanroom applications without supplemental containment.

What is the expected mean time between failures (MTBF) for the refrigeration system?
Based on field data from installed units operating continuously under nominal load, the imported compressor and sealed refrigerant circuit demonstrate >15,000 hours MTBF, consistent with industrial-grade air-cooled chiller specifications.