Hettich 3H16RI High-Speed Refrigerated Benchtop Centrifuge

Overview

The Hettich 3H16RI is a high-speed refrigerated benchtop centrifuge engineered for precision separation in life science and clinical laboratories. It operates on the principle of sedimentation under controlled gravitational force (RCF), enabling efficient isolation of cellular components—including bacteria, subcellular organelles, nucleic acids, and protein precipitates—through differential centrifugation. Its integrated refrigeration system maintains sample integrity across a wide operational temperature range (−20 °C to +40 °C), critical for thermolabile biomolecules and sensitive cell preparations. Designed for compliance with international quality management systems, the 3H16RI meets ISO 9001:2015 and ISO 13485:2016 standards and holds CFDA registration—supporting its use in regulated environments where traceability and process validation are required.

Key Features

• Brushless DC motor with high-torque output and ultra-low acoustic emission (≤60 dB[A]), ensuring stable rotor acceleration and minimal vibration-induced sample disturbance.
• Advanced thermal management: dual-stage cooling with R404a refrigerant, pre-cooling capability, hold-at-temperature standby mode, and electric heating defrost—all compliant with EU RoHS Directive 2015/863.
• Intelligent safety architecture: automatic rotor recognition, real-time imbalance detection, triple-layer mechanical damping, and comprehensive electronic safeguards (overspeed, overtemperature, undervoltage, overvoltage).
• TFT-LCD full-color touchscreen interface with bilingual (English/Chinese) and multilingual (Russian, Portuguese) menu options; supports parameter modification during active runs without halting operation.
• Biocontainment-ready fixed-angle rotors sealed with medical-grade silicone gaskets—certified for aerosol containment per biosafety Level 2 (BSL-2) laboratory requirements.
• Modular rotor compatibility: accepts aviation-grade aluminum angle rotors and polyamide fiber adapters for tubes ranging from 0.2 mL PCR strips to 100 mL conical tubes, plus MTPs, PCR plates, and cell culture plates.

Sample Compatibility & Compliance

The 3H16RI accommodates diverse sample formats including microcentrifuge tubes (1.5/2.0 mL standard rotor), large-volume bottles (up to 100 mL), and multiwell plates—making it suitable for nucleic acid purification workflows, bacterial pelleting, exosome isolation, and environmental sample processing. All rotors undergo static and dynamic balance verification prior to shipment. The instrument complies with IEC 61010-1:2010 for laboratory electrical safety and EN 61326-1:2013 for electromagnetic compatibility. Its CFDA registration and ISO 13485 certification confirm adherence to medical device manufacturing controls, supporting applications in diagnostic development and GMP-aligned QC labs.

Software & Data Management

While the 3H16RI does not feature networked data export or cloud connectivity, its embedded firmware provides full audit trail functionality for all user-modifiable parameters—including speed, time, temperature, acceleration/deceleration profiles, and rotor ID. Each of the 100 programmable methods stores timestamped execution logs accessible via on-device history review. The system supports GLP-compliant operation through password-protected administrator access, parameter lockout modes, and non-volatile memory retention—even after power loss. Firmware updates are performed via USB port using signed binaries, ensuring integrity and version traceability.

Applications

• Nucleic acid extraction: rapid pelleting of silica-membrane columns and magnetic beads under chilled conditions to preserve RNA integrity.
• Protein biochemistry: clarification of lysates, recovery of inclusion bodies, and fractionation of membrane proteins at defined RCF values.
• Microbiology: concentration of low-abundance bacterial cultures from liquid media or environmental water samples.
• Clinical diagnostics: preparation of serum/plasma from whole blood, isolation of PBMCs, and viral pellet harvesting.
• Environmental testing: sedimentation of particulates and microbial aggregates from wastewater or soil extracts.

FAQ

What is the maximum relative centrifugal force (RCF) achievable with the 3H16RI?

The instrument delivers up to 20,320 × g at its rated maximum speed of 16,800 rpm with the standard 12-position 1.5/2.0 mL rotor.
Does the 3H16RI support regulatory-compliant data archiving for FDA 21 CFR Part 11?

No—while it maintains local execution logs and supports password-protected method editing, it lacks electronic signature capability, remote data export, or time-stamped audit trails required for full Part 11 compliance.
Can the centrifuge maintain temperature during extended runs (e.g., >6 hours)?

Yes—the compressor-based cooling system and insulated chamber enable stable thermal control throughout the full timer range (1 min to 99 h 59 min), provided ambient conditions remain within specified operating limits (10–32 °C).
Is rotor calibration required before each use?

No—automatic rotor identification eliminates manual calibration; however, users must verify rotor model compatibility and ensure proper seating prior to initiation.
What safety certifications apply to the 3H16RI’s biocontainment rotors?

Rotors meet ISO 13485 design controls for medical devices and incorporate silicone gaskets certified to EU RoHS 2015/863, minimizing aerosol leakage during high-speed operation in BSL-2 settings.