Thermo Scientific Multifuge X4 R Pro Centrifuge – CTS™ Series

Overview

The Thermo Scientific Multifuge X4 R Pro Centrifuge – CTS™ Series is a purpose-engineered benchtop refrigerated centrifuge designed explicitly for cell and gene therapy (CGT) manufacturing environments operating under current Good Manufacturing Practice (cGMP) and ISO 13485 quality management systems. Built on a robust mechanical architecture and validated thermal control system, it employs fixed-angle and swing-bucket rotor configurations—primarily the TX-1000 swing-bucket rotor—to deliver high-reproducibility sedimentation of sensitive biological suspensions, including viral vectors, primary cells, exosomes, and adherent or suspension-derived therapeutic cell populations. Its refrigerated operation (–9 °C to 40 °C), combined with precise RCF and speed regulation (up to 5,200 rpm / 4,900 × g), ensures thermal stability critical for preserving viability, transduction efficiency, and functional integrity during large-volume processing steps. Unlike general-purpose laboratory centrifuges, the CTS™ Series integrates design-for-compliance features—including material traceability, factory acceptance test (FAT) documentation, and cleanroom-compatible surface finishes—that align with regulatory expectations for equipment qualification in clinical-grade production settings.

Key Features

• CTS™-certified build: Constructed with electropolished stainless-steel chambers and non-porous polymer components validated for compatibility with vaporized hydrogen peroxide (VHP), dry heat, and STERIS™-type disinfection protocols.
• TX-1000 swing-bucket rotor: Supports up to 4 L total capacity per run—enabling scalable processing of up to 40 × 50 mL conical tubes, 96 × 15 mL conical tubes, or 4 × 500 mL bottles—without compromising rotor balance or thermal uniformity.
• ClickSeal™ biocontainment lid: Mechanically interlocked, autoclavable sealing system meeting ISO 14644-1 Class 5 (ISO Class 5) particulate requirements; prevents aerosol escape during deceleration and enables safe handling in biosafety cabinets or isolators.
• Intuitive 7-inch capacitive touchscreen interface: Offers guided method setup, user-level access control (admin/operator modes), and real-time display of RCF, speed, temperature, time remaining, and rotor status.
• Integrated scheduling & predictive maintenance queue: Automatically logs operational hours, rotor cycles, and temperature excursions; triggers service alerts based on predefined thresholds to minimize unplanned downtime and maintain process continuity.
• Mobile-ready footprint: Floor-standing configuration with locking casters allows repositioning within ISO-classified spaces without requiring permanent anchoring or structural modification.

Sample Compatibility & Compliance

The Multifuge X4 R Pro CTS™ Series accommodates standard CGT sample containers—including polypropylene and polycarbonate conical tubes (15–50 mL), PETG and borosilicate glass bottles (up to 500 mL), and custom-fit bioprocess bags (when used with appropriate adapter kits). All rotors undergo dynamic balancing certification per ISO 21501-4 and are supplied with individual calibration certificates. The system is prequalified for compliance with ICH Q5A(R2), USP , and ASTM E2500-13 guidance for equipment qualification in biopharmaceutical development. Documentation packages include FAT/SAT reports, material-of-construction declarations (per USP ), and cleaning validation support files—facilitating audit readiness for FDA, EMA, PMDA, and Health Canada inspections.

Software & Data Management

Data integrity is enforced through embedded firmware that records all run parameters—including start/stop timestamps, user ID, rotor serial number, setpoints, actual values, and alarm events—in an immutable, timestamped log. Export occurs exclusively via front-panel USB port as password-protected, digitally signed PDFs compliant with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). No editable file formats (e.g., CSV, Excel) are generated or stored internally. Audit trail functionality meets FDA 21 CFR Part 11 requirements for electronic records and signatures when deployed with enterprise-level identity management infrastructure.

Applications

• Harvesting and washing of lentiviral and AAV vector preparations prior to chromatographic purification
• Concentration and pelleting of CAR-T and NK cell populations during expansion and formulation
• Clarification of mammalian cell culture supernatants containing extracellular vesicles or soluble therapeutic proteins
• Buffer exchange and desalting steps in plasmid DNA and mRNA intermediate processing
• Final fill preparation of cryopreserved cell products under controlled temperature conditions

FAQ

Is the Multifuge X4 R Pro CTS™ Series suitable for use inside a Class A laminar flow hood?

Yes—the ClickSeal™ lid and low-vibration motor design enable safe, stable operation within ISO Class 5 environments when installed on vibration-dampened work surfaces.
Can rotor lifetime be extended beyond the manufacturer’s rated cycle count?

No—rotor service life is strictly defined by fatigue testing and must be tracked via the onboard maintenance scheduler; exceeding rated cycles invalidates compliance documentation and voids warranty coverage.
Does the system support remote monitoring or integration with MES/LIMS platforms?

Not natively—however, encrypted PDF exports can be ingested into validated document management systems; optional third-party middleware solutions may be deployed subject to IQ/OQ validation.
What documentation is provided at time of delivery?

Factory Acceptance Test (FAT) report, Certificate of Conformance, Material Traceability Dossier, Installation Qualification (IQ) protocol template, and Cleanroom Suitability Statement.