Herx TL6R Floor-Standing Low-Speed Refrigerated Centrifuge

Overview

The Herx TL6R is a floor-standing, low-speed refrigerated centrifuge engineered for high-capacity, temperature-sensitive separation tasks in clinical laboratories, blood banks, biobanks, and pharmaceutical QC environments. It operates on the principle of sedimentation under controlled gravitational force (RCF), enabling efficient pelleting of cells, organelles, precipitated proteins, and other biological macromolecules without denaturation or structural compromise. Designed for routine yet demanding workflows—including whole blood fractionation, plasma preparation, cell harvesting, and large-volume sample processing—the TL6R delivers consistent, reproducible performance at rotational speeds up to 6,500 rpm and RCF up to 4,800 × g. Its integrated refrigeration system maintains precise thermal control across the full operational range (−20 °C to +40 °C), critical for preserving labile analytes such as coagulation factors, cytokines, and extracellular vesicles during extended runs.

Key Features

• High-efficiency brushless AC frequency-controlled motor with direct drive architecture ensures stable rotation, minimal vibration, and acoustic output ≤65 dB(A) — optimized for shared laboratory spaces.
• Environmentally compliant refrigeration using R404a refrigerant and fluorine-free compressors; includes pre-cooling, standby cooling, and automatic defrost functions for uninterrupted workflow continuity.
• Triple-stage damping system with custom composite shock absorption and precision-balanced rotor mounting minimizes mechanical resonance, preventing sample resuspension and ensuring pellet integrity.
• TFT-LCD color touchscreen interface with dual input mode (touch + physical keys); real-time display of setpoints and actual values (speed, RCF, time, temperature); parameter adjustment possible mid-run without stopping.
• Biocontainment-certified angular rotors featuring seamless silicone O-rings compliant with EU RoHS Directive 2015/863, effectively containing aerosols generated during high-speed deceleration.
• Reinforced centrifuge chamber constructed from austenitic 304 stainless steel; outer housing finished with electrostatic powder coating; front panel and protective casing fabricated from cold-rolled steel with triple-layer safety shielding.
• Intelligent lid-locking mechanism based on silent electromechanical actuation—self-engaging upon gentle closure, eliminating manual latching errors and enhancing operator safety.
• Programmable acceleration/deceleration profiles (10 steps each) allow optimization for shear-sensitive samples; supports storage of 20 customizable protocols with editable rotor-specific parameters.
• Automatic rotor identification via embedded RFID or optical encoding prevents mismatched speed/temperature configurations and enforces safe operating limits.

Sample Compatibility & Compliance

The TL6R accommodates a broad spectrum of primary and secondary containers, including conical tubes (5–750 mL), vacuum blood collection tubes (2–15 mL), microtiter plates (96-well formats), and custom adapters for specialized vessels. Its certified biocontainment rotors meet biosafety requirements for BSL-2 applications involving human-derived specimens. Regulatory compliance includes ISO 9001:2015 (quality management), ISO 13485:2016 (medical device manufacturing), and registration with China’s National Medical Products Administration (NMPA, formerly CFDA). While not inherently 21 CFR Part 11-compliant out-of-the-box, the instrument’s audit-trail-capable software architecture supports integration into GLP/GMP environments when deployed with validated electronic record systems.

Software & Data Management

The onboard control firmware records timestamped run logs—including rotor ID, speed, temperature, duration, acceleration profile, and fault events—for traceability and internal QA review. Export functionality supports CSV format via USB port, enabling downstream analysis in LIMS or statistical packages. Multilingual UI (English, Chinese, Russian, Portuguese) facilitates international deployment and cross-border training. Firmware updates are performed locally via encrypted USB key, ensuring version control and cybersecurity alignment with institutional IT policies.

Applications

• Clinical diagnostics: Separation of serum, plasma, and buffy coat from whole blood; preparation of platelet-rich plasma (PRP) and leukocyte concentrates.
• Biobanking: Cryopreservation-ready processing of peripheral blood mononuclear cells (PBMCs), stem cells, and tissue homogenates.
• Pharmaceutical QC: Clarification of fermentation broths, recovery of microbial pellets, and removal of particulates from parenteral formulations.
• Research labs: Large-scale isolation of mitochondria, nuclei, and ribosomes; density gradient centrifugation support with compatible swing-out rotors.
• Vaccines & therapeutics: Downstream processing of viral vectors and exosome preparations requiring temperature-stabilized conditions.

FAQ

What is the maximum RCF achievable with the TL6R using the standard horizontal rotor?
The TL6R achieves a maximum RCF of 3,520 × g at 4,000 rpm with the 4 × 750 mL horizontal rotor.
Does the TL6R support validation documentation for GMP environments?
Yes — the device ships with Factory Acceptance Test (FAT) reports, IQ/OQ templates, and calibration certificates traceable to national standards; final PQ must be conducted per site-specific protocols.
Can the instrument maintain temperature stability during prolonged runs exceeding 4 hours?
Yes — the compressor-based cooling system and insulated chamber design ensure thermal deviation remains within ±1 °C over continuous operation at any setpoint between −20 °C and +40 °C.
Is rotor imbalance detection automated?
Yes — dynamic imbalance sensing triggers immediate deceleration and visual/audible alerts prior to reaching unsafe vibration thresholds.
Are spare parts and service support available outside mainland China?
Herx maintains authorized service partners in Southeast Asia, Eastern Europe, and Latin America; rotor consumables and critical components are stocked regionally for <72-hour dispatch.