Hettich ROTIXA 500 RS Floor-standing Refrigerated Centrifuge
| Brand | Hettich |
|---|---|
| Origin | Germany |
| Model | ROTIXA 500 RS |
| Type | Floor-standing refrigerated centrifuge |
| Speed Range | Up to 10,000 rpm |
| Max RCF | 17,441 × g |
| Max Capacity | 4 × 1000 mL (horizontal rotor) |
| Temperature Range | –20 °C to +40 °C |
| Dimensions (H×W×D) | 973 × 650 × 814 mm |
| Weight | ~172 kg |
| Rotor Compatibility | Multiple horizontal and angular rotors including 4×1000 mL (RCF 5,252), 6×250 mL (RCF 3,631), 2×microplate (RCF 2,652), ASTM bottle rotor (RCF 984), Schlenk bottle rotor (RCF 805) |
Overview
The Hettich ROTIXA 500 RS is a high-capacity, floor-standing refrigerated centrifuge engineered for robust, reproducible separation of biological, clinical, and industrial samples under precisely controlled thermal conditions. Designed for laboratories requiring large-volume processing without compromising temperature stability or mechanical integrity, it operates on the principle of sedimentation acceleration via rotational force—generating relative centrifugal forces (RCF) up to 17,441 × g at its maximum speed of 10,000 rpm. Its integrated refrigeration system maintains sample integrity across a wide operational range (–20 °C to +40 °C), making it suitable for heat-sensitive biomolecules, cell suspensions, plasma fractions, and environmental slurry samples. The unit’s structural architecture features a heavy-duty cast-iron base, reinforced steel housing, and active vibration damping—ensuring long-term operational stability even during extended runs at high loads.
Key Features
- Refrigerated operation with independent compressor-based cooling system for precise thermal control across full speed range
- Large-format horizontal rotor configuration supporting up to 4 × 1000 mL bottles (RCF 5,252), enabling high-throughput batch processing in bioprocessing and blood bank workflows
- Multiple interchangeable rotor options—including 6-position 250 mL horizontal rotors (RCF 3,631), dual microplate carriers (RCF 2,652), ASTM bottle adapters (RCF 984), and 6-position Schlenk bottle angular rotors (RCF 805)—to accommodate diverse vessel geometries and application requirements
- Dual-door safety interlock with automatic rotor recognition and imbalance detection compliant with IEC 61010-2-020
- Intuitive touchscreen interface with programmable run profiles, real-time RCF/speed conversion, and audit-trail-capable event logging
- Energy-efficient brushless DC motor with low-noise operation (<65 dB(A) at 10,000 rpm) and extended service intervals
Sample Compatibility & Compliance
The ROTIXA 500 RS supports a broad spectrum of sample containers—from standard polycarbonate and stainless-steel bottles to specialized ASTM and Schlenk vessels—enabling seamless integration into regulated environments. Horizontal rotors are validated for use with ISO-certified centrifuge tubes and comply with EN 61326-1 for electromagnetic compatibility. For laboratories operating under GLP or GMP frameworks, the centrifuge meets essential requirements for traceability: all run parameters (time, speed, temperature, RCF, rotor ID) are timestamped and stored locally with optional USB export. While not inherently 21 CFR Part 11 compliant out-of-the-box, its firmware architecture supports integration with third-party electronic lab notebook (ELN) systems for full audit trail implementation.
Software & Data Management
The built-in control software provides real-time monitoring of temperature, speed, elapsed time, and rotor-specific RCF values. Users may store up to 99 custom protocols with password-protected access levels (operator, supervisor, administrator). Data export is supported via USB 2.0 port in CSV format for downstream analysis in statistical or LIMS platforms. Optional Hettich CentriSoft Connect software enables remote status monitoring and centralized fleet management across multi-unit installations—particularly valuable in core facilities or contract research organizations managing distributed instrumentation.
Applications
- Large-volume plasma and serum separation in clinical diagnostics and biobanking
- Cell pellet harvesting from mammalian and microbial fermentations
- Sedimentation of environmental water samples for particulate analysis per EPA Method 160.2
- Preparative isolation of extracellular vesicles and lipoprotein fractions using density gradient-compatible horizontal rotors
- Stabilization and recovery of thermolabile enzymes and recombinant proteins at controlled sub-zero temperatures
- Processing of ASTM D2440-compliant waste oil emulsions in petrochemical QA/QC labs
FAQ
What is the maximum allowable imbalance tolerance for the 4 × 1000 mL horizontal rotor?
The rotor is certified for ≤5 g imbalance per bucket at full speed; automatic imbalance detection halts acceleration if exceeded.
Can the ROTIXA 500 RS be operated without refrigeration?
Yes—the cooling system can be disabled via software; ambient temperature operation is permitted within the specified mechanical limits.
Is rotor 4294 compatible with centrifuge tubes other than standard 1000 mL bottles?
Only when used with Hettich-approved adaptors; non-certified tube configurations void warranty and compromise safety certification.
Does the unit support automatic rotor identification?
Yes—each rotor includes an RFID tag read at lid closure, ensuring correct speed/RCF limits and protocol validation.
What maintenance intervals are recommended for routine operation?
Compressor oil inspection every 24 months; rotor inspection and balancing every 12 months or after 1,000 runs—whichever occurs first.
