3H26RI High-Speed Refrigerated Centrifuge

Overview

The 3H26RI High-Speed Refrigerated Centrifuge is an engineered solution for high-resolution separation of biological macromolecules—including nucleic acids, proteins, subcellular organelles, and viral particles—under precisely controlled thermal conditions. Operating on the principle of sedimentation velocity centrifugation, it delivers reproducible g-force profiles up to 46,900 × g at its maximum rotational speed of 26,000 rpm. Its refrigerated architecture maintains sample integrity during extended runs by stabilizing rotor temperature within ±1 °C across the full operational range (−20 °C to +40 °C), critical for heat-sensitive biomolecules and enzymatic assays. Designed for routine use in GLP-compliant laboratories, the 3H26RI meets structural and functional requirements aligned with ISO 13485 for medical device distribution and supports audit-ready operation through programmable run logs and parameter traceability.

Key Features

• Brushless DC inverter motor with high-torque output and low mechanical drift—ensures stable acceleration and deceleration across all 10 programmable ramp profiles.
• TFT true-color capacitive touchscreen interface with dual-parameter display: simultaneous real-time visualization of setpoints (temperature, speed, time) and dynamic operational values (actual rpm, g-force, cavity temperature, elapsed time).
• Triple-layer reinforced steel rotor chamber with integrated safety interlock system—mechanically and electronically verified prior to each run to prevent unbalanced operation or lid opening under rotation.
• Intelligent standby cooling: pre-chills the rotor chamber while idle, reducing thermal lag at startup and minimizing sample warm-up during loading.
• Comprehensive rotor library support: compatible with titanium angle rotors (12 × 1.5/2.0 mL, 24 × 1.5/2.0 mL), swing-bucket configurations (4 × 100 mL), 96-well microplate carriers (2 × 96-position), and custom-fit adapters for 5–50 mL conical tubes.
• Microcontroller-based control architecture (Microchip dsPIC30F series) with dedicated gate-driver ICs (FAIRCHILD FSBB30CH) ensures electromagnetic compatibility, long-term firmware stability, and immunity to voltage transients typical in shared lab power circuits.

Sample Compatibility & Compliance

The 3H26RI accommodates a broad spectrum of primary sample formats used in molecular biology, clinical diagnostics, and bioprocess development—including sterile centrifuge tubes (1.5–100 mL), PCR strip tubes, deep-well plates, and sealed blood collection tubes. Its stainless-steel centrifuge chamber and corrosion-resistant rotor housings comply with ISO 15195:2018 for laboratory equipment hygiene and are validated for repeated autoclaving of removable components. The system supports compliance workflows per CLIA, CAP, and ISO/IEC 17025 through user-accessible calibration records, password-protected method locking, and timestamped run history export (CSV). Optional audit trail extension modules enable FDA 21 CFR Part 11–compliant electronic signatures and immutable log archiving.

Software & Data Management

The embedded operating system provides native support for 100 user-defined protocols, each storing speed, temperature, duration, acceleration/deceleration rate, and rotor ID. All parameters are non-volatile and retained after power cycling. Data export is performed via USB 2.0 port to standard FAT32-formatted drives; exported files include metadata headers (operator ID, date/time stamp, rotor serial number, ambient humidity/temperature if logged externally). No proprietary software installation is required—raw CSV outputs integrate natively with LIMS platforms (e.g., LabWare, STARLIMS) and statistical analysis tools (GraphPad Prism, R). Remote monitoring is supported via optional Ethernet module (IEEE 802.3), enabling SNMP-based status polling and SNMP trap alerts for fault conditions.

Applications

• Purification of plasmid DNA and genomic DNA from bacterial lysates using silica-membrane or cesium chloride gradient protocols.
• Isolation of exosomes and extracellular vesicles from cell culture supernatants and biofluids (plasma, urine, CSF) at ≥100,000 × g equivalent force (achieved via angle rotor selection and dwell optimization).
• Preparative fractionation of mitochondrial, lysosomal, and nuclear subfractions from tissue homogenates under cold centrifugation conditions.
• Routine hematocrit determination and serum/plasma separation in blood bank and transfusion medicine settings.
• Clarification of recombinant protein expression lysates prior to chromatographic purification steps.
• High-throughput processing of 96-well plates in ELISA, qPCR, and NGS library prep workflows.

FAQ

What is the maximum relative centrifugal force (RCF) achievable with the 3H26RI using the standard 12 × 1.5/2.0 mL titanium angle rotor?
The maximum RCF is 46,900 × g at 26,000 rpm.
Does the 3H26RI support validation documentation for GMP environments?
Yes—factory-issued IQ/OQ documentation packages are available upon request, including temperature uniformity mapping reports, speed calibration certificates traceable to NIST standards, and mechanical vibration analysis summaries.
Can the centrifuge maintain −20 °C setpoint during continuous 6-hour operation at maximum speed?
Yes—the dual-stage refrigeration system with R404a-free compressor and proportional expansion valve control sustains cavity temperature within specification under sustained high-load conditions, as verified per IEC 61010-2-020 Annex BB thermal load testing.
Is rotor balancing required manually before each run?
No—the built-in imbalance detection system automatically halts acceleration if mass asymmetry exceeds 5 g per bucket pair, eliminating manual balance checks for symmetric tube configurations.
Are third-party rotors supported?
Only manufacturer-certified rotors are supported to ensure mechanical integrity, thermal compatibility, and safety certification validity; use of uncertified hardware voids warranty and regulatory compliance status.