Hettich HR/T20M Benchtop High-Speed Refrigerated Centrifuge

Overview

The Hettich HR/T20M Benchtop High-Speed Refrigerated Centrifuge is engineered for precision separation in resource-constrained laboratory environments where reliable low-temperature centrifugation is required without compromising performance or safety. Utilizing a brushless DC/AC variable-frequency motor coupled with microprocessor-based closed-loop speed and temperature control, the HR/T20M delivers stable rotational dynamics at up to 20,000 rpm and 28,800 × g RCF—sufficient for demanding applications including nucleic acid isolation, subcellular fractionation, protein pellet recovery, and clinical specimen processing. Its integrated refrigeration system employs an imported non-ozone-depleting R404a refrigerant and high-efficiency compressor, enabling rapid pre-cooling and continuous thermal maintenance between −20 °C and +40 °C during operation—a critical capability for thermolabile biomolecules and diagnostic workflows requiring strict thermal integrity.

Key Features

• Brushless high-torque motor ensures consistent speed accuracy (±50 rpm) and ultra-low operational noise (≤65 dB[A]), minimizing acoustic interference in shared lab spaces.
• True-color TFT-LCD touchscreen interface with dual input mode (touch + physical keys), supporting real-time parameter display (set vs. actual speed, temperature, time, RCF) and on-the-fly adjustments without centrifuge interruption.
• 10-step programmable acceleration/deceleration profiles prevent sample resuspension and enhance pelleting reproducibility—particularly vital for delicate organelles or viscous biological matrices.
• Biocontainment-compliant fixed-angle rotors sealed with RoHS 2015/863-certified silicone elastomer gaskets to suppress aerosol generation during high-speed runs.
• Triple-layer mechanical protection: 304 stainless-steel centrifuge chamber, powder-coated steel housing, and reinforced front panel with impact-resistant polymer overlay ensure structural resilience under routine use and accidental overloads.
• Intelligent safety architecture includes real-time monitoring for imbalance, overspeed, overtemperature, under/over-voltage, and door interlock failure—with automatic rotor deceleration and audible/visual alerts.
• Pre-cooling and standby cooling modes maintain chamber setpoint during idle periods, reducing thermal drift prior to sample loading and improving assay consistency across multi-batch workflows.

Sample Compatibility & Compliance

The HR/T20M accommodates standard and custom rotor configurations—including 12 × 1.5/2.0 mL angular rotors—and supports optional polyamide fiber adapters for 96-well PCR plates, deep-well microplates, and cell culture vessels. All rotors are forged from aerospace-grade aluminum alloy (EN AW-2014) and dynamically balanced per ISO 1940-1 G2.5 grade specifications. The instrument complies with ISO 9001:2015 (quality management) and ISO 13485:2016 (medical device manufacturing), and carries CFDA registration and production license for use in clinical diagnostics and IVD-related applications in China. Rotor sealing meets EU RoHS Directive 2015/863 requirements, ensuring compliance with environmental and occupational health standards governing hazardous substance restrictions.

Software & Data Management

While the HR/T20M operates via embedded firmware without external PC connectivity, its internal memory stores up to 20 user-defined protocols—including speed, temperature, time, acceleration/deceleration ramping, and RCF calculation—enabling rapid recall of validated methods. All runtime parameters are timestamped and logged locally with cycle counters per rotor ID, supporting basic GLP traceability. The interface supports multilingual menus (English, Chinese, Russian, Portuguese) to accommodate international deployment in contract research organizations (CROs), academic core facilities, and regional public health laboratories. Though not natively 21 CFR Part 11 compliant, audit trails and parameter locking may be implemented via documented SOPs aligned with ISO/IEC 17025 or CAP accreditation frameworks.

Applications

This centrifuge serves as a primary workhorse in molecular biology labs performing plasmid DNA purification, RNA extraction, and viral particle concentration; in clinical microbiology for bacterial pellet harvesting and serum separation; in food safety testing for pathogen enrichment and toxin precipitation; and in environmental analysis for waterborne microorganism recovery. Its −20 °C capability enables efficient cryoprecipitation of fibrinogen and cold-sensitive enzymes, while its 4 × 100 mL capacity supports scalable sample preparation for biobanking and bioprocess development workflows.

FAQ

What is the maximum relative centrifugal force (RCF) achievable with the HR/T20M?
The HR/T20M achieves a maximum RCF of 28,800 × g at its rated speed of 20,000 rpm with the standard 12 × 1.5/2.0 mL fixed-angle rotor.
Does the HR/T20M support continuous centrifugation mode?
Yes—it offers both timed runs (1 min to 99 h 59 min) and continuous operation mode, allowing indefinite spinning until manually stopped or interrupted by safety conditions.
Can rotor parameters be calibrated or verified onsite?
Speed calibration is performed at factory level using traceable tachometric standards; users may verify rotational stability via external laser tachometer, though formal recalibration requires authorized service center intervention.
Is the refrigeration system compatible with long-term unattended operation?
Yes—the compressor and thermal management system are rated for continuous duty cycles within the specified ambient temperature range (10–32 °C), with automatic defrost and condensate management built into the design.
Are rotor lifetime and maintenance records tracked by the instrument?
No embedded rotor lifecycle counter is present; however, each rotor bears a unique serial number and comes with a manufacturer-specified maximum run count and expiration date—both documented in the supplied rotor logbook and recommended for manual entry into lab asset management systems.