Hexion TL5R Low-Speed High-Capacity Refrigerated Centrifuge

Overview

The Hexion TL5R is a floor-standing, refrigerated low-speed centrifuge engineered for high-capacity routine separation tasks in clinical diagnostics, bioprocessing, blood banking, and academic core facilities. Operating on the principle of sedimentation under controlled gravitational force (RCF), the TL5R delivers stable, reproducible separation of whole blood, cell suspensions, culture media, and large-volume biological samples—without inducing shear-sensitive damage typical of high-speed rotor systems. Its design prioritizes thermal stability, mechanical robustness, and operator safety, making it suitable for extended unattended operation in GLP-compliant laboratories and ISO 13485-certified manufacturing environments. The unit integrates a brushless AC frequency-controlled motor with precision vector control, enabling smooth acceleration/deceleration profiles essential for preserving pellet integrity in sensitive applications such as PBMC isolation or plasma fractionation.

Key Features

• Refrigerated operation across a wide temperature range (−20 °C to +40 °C), with real-time setpoint adjustment during active runs and pre-cool functionality for rapid chamber equilibration
• Advanced thermal management using an imported non-ozone-depleting R404a refrigerant system and hermetically sealed compressor assembly
• Dual-mode user interface: 7-inch TFT-LCD true-color touchscreen paired with tactile physical keys; supports on-the-fly parameter modification without centrifuge stoppage
• Comprehensive safety architecture: triple-stage damping suspension, automatic rotor imbalance detection, overspeed/overtemperature/under-voltage/over-voltage alarms, and auto-locking door mechanism compliant with IEC 61010-2-020
• Biocontainment-ready horizontal rotors with integrated silicone rubber sealing rings (RoHS 2015/863 compliant) to prevent aerosol leakage during high-volume spinning
• Stainless steel 304 centrifuge chamber, powder-coated steel housing, reinforced front panel, and triple-layer protective casing for structural integrity and long-term corrosion resistance
• Programmable deceleration and acceleration profiles (10-step each); 20 programmable method storage slots with timestamped audit logs

Sample Compatibility & Compliance

The TL5R accommodates standard 750 mL disposable or reusable bottles (e.g., Corning, Thermo Fisher Nunc), as well as universal swing-out buckets compatible with 15 mL, 50 mL, and 100 mL conical tubes. It supports routine protocols aligned with CLSI H18-A4 (blood specimen processing), ASTM D3325 (centrifuge performance verification), and ISO 20387:2018 (biobanking requirements). All firmware and operational logs adhere to ALCOA+ principles. Full traceability—including rotor ID, speed, time, temperature, and RCF—is maintained per FDA 21 CFR Part 11 Annex 11 guidelines when used with validated LIMS integration.

Software & Data Management

While the TL5R operates autonomously via embedded firmware, its communication interface (RS-485 + optional Ethernet module) enables seamless integration with laboratory information management systems (LIMS) and electronic lab notebooks (ELN). Audit trails capture all user actions, parameter changes, alarm events, and maintenance intervals with immutable timestamps. Firmware updates are delivered via encrypted USB drive with SHA-256 signature verification. Language localization includes English, Chinese, Russian, and Portuguese—fully switchable without reboot.

Applications

• Clinical hematology: Separation of whole blood into packed red cells, buffy coat, and platelet-poor plasma
• Vaccines & biologics: Clarification of mammalian cell culture harvests prior to downstream filtration or chromatography
• Environmental microbiology: Concentration of waterborne pathogens (e.g., Legionella, Cryptosporidium) from large-volume samples
• Food safety labs: Fat extraction from milk homogenates and sedimentation of particulates in beverage quality control
• Academic teaching: Robust platform for undergraduate centrifugation training with visual RCF feedback and fail-safe interlocks

FAQ

What is the maximum relative centrifugal force (RCF) achievable with the TL5R at full capacity?
At 5,500 rpm with a 750 mL bottle in a horizontal rotor, the maximum RCF is 4,800 × g — verified per ISO 15880:2020 calibration protocol.
Does the TL5R support rotor validation and lifetime tracking?
Yes. Each rotor carries a unique QR-coded ID scanned at startup; cumulative run hours, max speed history, and thermal cycles are logged automatically.
Is remote monitoring or network connectivity available?
Optional Ethernet module enables SNMP-based status polling and Syslog event forwarding; no cloud dependency or vendor-hosted platform required.
How does the TL5R meet biosafety requirements for BSL-2 workflows?
The combination of gas-tight rotor seals, negative-pressure chamber design, and post-run automatic door unlock delay ensures containment integrity per WHO Laboratory Biosafety Manual (4th ed.).
Can the TL5R be validated for GMP production use?
Yes. IQ/OQ documentation packages are provided; PQ execution support includes calibrated tachometer, thermocouple mapping, and vibration spectrum analysis reports.