Domel CENTRIC MF48R Benchtop High-Speed Refrigerated Centrifuge

Overview

The Domel CENTRIC MF48R is a high-performance benchtop refrigerated centrifuge engineered for demanding separation workflows in life science, clinical diagnostics, and bioprocessing laboratories. It operates on the principle of sedimentation under controlled gravitational force (RCF), enabling precise isolation of biological macromolecules—including nucleic acids, proteins, organelles, and viral particles—through differential centrifugation. Its refrigerated architecture maintains sample integrity during prolonged or high-speed runs by actively regulating chamber temperature between −20 °C and +40 °C, with rapid cooling capability (≤15 minutes from ambient 22 °C to 4 °C). Designed for reliability and reproducibility, the MF48R integrates a brushless induction motor, electronic lid locking system, and microprocessor-controlled acceleration/deceleration profiles to minimize mechanical stress on samples and rotor integrity.

Key Features

• High-speed performance: 500–14,000 rpm (10 rpm increments), delivering up to 21,030 × g RCF for efficient pelleting of subcellular components and macromolecular complexes.
• Refrigerated operation: Dual-stage compressor-based cooling system ensures stable thermal control across all speed ranges; compliant with ISO 13485-aligned cold chain requirements for sensitive biomaterials.
• Multi-rotor flexibility: Supports eight interchangeable rotors—including six angular and two swing-out configurations—enabling method scalability from microliter-scale nucleic acid prep to 400 mL clinical sample processing.
• Intuitive user interface: Backlit LCD display with dual-range timer (seconds and hours), programmable deceleration braking (0–10 levels), and 10 stored protocol slots for GLP-compliant workflow repeatability.
• Acoustic and ergonomic design: Sound-dampened housing (<60 dB[A] at 1 m), compact footprint (305 × 420 × 762 mm), and electrically actuated dual-latch lid mechanism ensure safe, quiet, and operator-friendly daily use.
• Robust construction: Cast aluminum rotor chamber, reinforced stainless-steel housing, and IP22-rated electrical protection meet IEC 61010-1 safety standards for laboratory equipment.

Sample Compatibility & Compliance

The CENTRIC MF48R accommodates a broad spectrum of sample formats—from 2 mL microcentrifuge tubes to 400 mL conical bottles—across validated rotor configurations. Angular rotors (e.g., RA 24/2, RA 6/100) are optimized for high-RCF pelleting of DNA, RNA, and membrane vesicles, while swing-out rotors (RS 4/400, RM 2/64) support gentle sedimentation of fragile cells, platelet-rich plasma (PRP), and microtiter plates. All rotors undergo ISO 21501-4-certified balancing validation and are traceable via unique part numbers (e.g., 424153, 424132). The instrument complies with EN 61326-1 (EMC), EN 61010-1 (safety), and supports audit-ready documentation for FDA 21 CFR Part 11–aligned environments when paired with optional data export modules.

Software & Data Management

While the MF48R operates as a standalone unit with embedded firmware, its parameter logging capability (speed, RCF, time, temperature, rotor ID) enables manual recordkeeping aligned with GLP/GMP documentation practices. Timestamped run logs can be exported via USB interface (optional accessory) for integration into LIMS or ELN platforms. Firmware updates maintain compatibility with evolving regulatory expectations—including electronic signature support and audit trail generation—when deployed within validated IT infrastructures. No proprietary cloud service is required; all configuration and calibration data remain locally stored and user-controllable.

Applications

• Purification of plasmid DNA, genomic DNA, and total RNA from bacterial, mammalian, and plant lysates.
• Isolation of exosomes, microvesicles, and extracellular nanoparticles using sequential ultracentrifugation protocols (in combination with compatible high-RCF rotors).
• Clinical sample preparation: serum/plasma separation, PBMC isolation, and urine sediment analysis per CLSI GP10-A4 guidelines.
• Biopharmaceutical QC: clarification of monoclonal antibody harvests, removal of host cell proteins, and virus-like particle (VLP) concentration.
• Academic research: subcellular fractionation (mitochondria, nuclei, lysosomes), protein complex co-sedimentation, and ribosome profiling workflows.

FAQ

What is the maximum RCF achievable with the standard angular rotor?
The RA 24/2 rotor achieves 21,030 × g at 14,000 rpm—the highest RCF available across the MF48R’s validated rotor set.
Does the centrifuge support automatic rotor recognition?
No; rotor identification is manual via selection in the menu, but each rotor is assigned a unique code (e.g., 233.310) for traceability in SOPs and batch records.
Can it operate continuously for >24 hours?
Yes—thermal management and motor duty cycle are rated for unattended operation up to 99 hours 59 minutes, provided ambient conditions remain within 2–35 °C and relative humidity ≤75% RH.
Is the unit suitable for BSL-2 environments?
Yes; sealed rotor chamber, HEPA-filtered exhaust (optional), and validated biocontainment rotors (e.g., sealed buckets for RS 4/400) support safe handling of moderate-risk agents per CDC/NIH BMBL 6th edition recommendations.
What maintenance intervals are recommended?
Brushless motor requires no scheduled commutator servicing; annual calibration of temperature and speed sensors—and biannual inspection of door latch actuators and refrigerant pressure—are advised per Domel Technical Bulletin TB-MF48R-02.