TD5GL Desktop Filtration Centrifuge

Overview

The TD5GL Desktop Filtration Centrifuge is an engineered solution for solid–liquid separation tasks requiring both high-throughput batch processing and integrated filtration capability. Unlike conventional benchtop centrifuges, the TD5GL incorporates a purpose-built filtration rotor interface that enables simultaneous sedimentation and membrane-assisted or screen-based filtration under controlled centrifugal force. Its operation relies on the principle of differential sedimentation velocity—where particles denser than the suspending medium migrate radially outward under acceleration—combined with mechanical retention via integrated filter media. Designed for laboratories engaged in bioprocessing, pharmaceutical downstream purification, petrochemical slurry analysis, and agricultural product extraction, the system supports scalable process development from lab-scale trials to pilot-line validation. The microprocessor-controlled architecture ensures precise regulation of rotational dynamics, while its compact footprint (460 × 550 × 370 mm) maintains compatibility with standard laboratory benchtop environments.

Key Features

• Brushless DC motor drive delivering stable speed control across the full 0–5000 rpm range, with minimal thermal drift and extended service life
• Microprocessor-based digital control panel with real-time display of speed (rpm), relative centrifugal force (×g), elapsed time, and remaining timer duration
• Automatic RCF calculation and direct g-force input mode—users may define target centrifugal force, and the system computes and sets the corresponding rotational speed
• Programmable operation: up to 99-minute timed runs with automatic deceleration and rotor stop; memory function retains last-used parameters
• Integrated electronic door lock with interlock verification—rotor cannot accelerate unless lid is fully closed and secured
• Comprehensive safety suite including lid-open detection, overspeed protection, imbalance sensing, and motor overtemperature cutoff
• Modular rotor configuration supporting three capacity tiers: 1000 mL, 2000 mL, and 3000 mL filtration vessels (compatible with standard polypropylene or stainless-steel filter housings)

Sample Compatibility & Compliance

The TD5GL accommodates a broad range of suspension types—including cell lysates, polymer emulsions, crude oil/water mixtures, plant extract slurries, and fermentation broths—provided sample viscosity remains within operational limits for effective cake formation and filtrate clarity. Filter media options include disposable polyethersulfone (PES) membranes (0.22–5.0 µm pore size), sintered stainless-steel screens, and custom-fitted depth filters. All configurations comply with Good Laboratory Practice (GLP) documentation requirements. Regulatory documentation includes ISO 9001:2000 Quality Management System certification (EWC61104Q), and medical device registration under China’s NMPA Class II classification framework (Registration Nos. 2003-1410036 through 2003-1410039). While not FDA 510(k)-cleared, the design adheres to fundamental IEC 61010-1 safety principles for electrical equipment used in laboratory settings.

Software & Data Management

The TD5GL operates as a standalone instrument without proprietary software dependency. All operational parameters are entered and monitored via the front-panel interface, with no external PC connection required. However, for laboratories implementing electronic record-keeping per 21 CFR Part 11, optional RS-232 or USB-to-serial adapters (sold separately) enable timestamped parameter logging to external systems. Audit trails—comprising start/stop times, setpoints, actual run profiles, and fault codes—are retained in non-volatile memory for up to 100 cycles and can be manually exported. Firmware updates are performed via secure USB key protocol under authorized service conditions.

Applications

• Clarification of microbial fermentation broths prior to chromatographic purification
• Separation of catalyst particles from refined hydrocarbon streams in petrochemical QA/QC
• Recovery of intracellular proteins or plasmid DNA from bacterial pellets using inline filtration
• Dehydration and dewatering of agricultural biomass extracts (e.g., starch, pectin, or essential oil suspensions)
• Preparative isolation of micronized active pharmaceutical ingredients (APIs) from crystallization slurries
• Field-deployable sediment analysis in environmental monitoring where portability and robustness are critical

FAQ

Is the TD5GL suitable for GMP-regulated pharmaceutical manufacturing?
It is validated for use in R&D and pilot-scale process development; final integration into GMP production lines requires site-specific IQ/OQ/PQ protocols and alignment with internal validation standards.
Can I use centrifuge tubes or microtubes with this unit?
No—the TD5GL is configured exclusively for filtration vessels (1000/2000/3000 mL); it does not accept swing-out or fixed-angle tube rotors.
What maintenance intervals are recommended?
Brushless motor inspection every 2,000 operating hours; rotor cavity cleaning after each use; annual calibration of speed and timer accuracy by certified service technician.
Does the system support continuous feed operation?
The base model operates in batch mode; continuous feed functionality requires integration with third-party peristaltic pumps and automated valve manifolds—not supplied with the standard unit.
Are replacement rotors and filter housings available internationally?
Yes—original-equipment manufacturer (OEM) parts are distributed globally through authorized partners, with lead times averaging 4–6 weeks ex-warehouse Shanghai.