Tianfeng TF-FD-1 Multi-Manifold Stoppering Freeze Dryer
| Brand | Tianfeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TF-FD-1 (Multi-Manifold Stoppering Type) |
| Freeze-Drying Area | 0.07 m² |
| Ultimate Vacuum | <15 Pa (at no load) |
| Condenser Temperature | <−50 °C |
| Ice Capacity | 3 kg/24 h |
| Power Consumption | 1100 W |
| Dimensions (W×D×H) | 370 × 650 × 360 mm |
| Sample Tray | Φ180 mm × 3 layers |
| Compatible Vials | 50–1000 mL (8 positions) |
| Refrigeration System | Air-Cooled Dual-Stage Condenser |
| Construction | 304 Stainless Steel Chamber & Condenser |
| Control Interface | Touchscreen LCD with Real-Time Drying Curve Display |
| Compliance | Designed for GLP-compliant laboratory environments |
Overview
The Tianfeng TF-FD-1 Multi-Manifold Stoppering Freeze Dryer is a compact, benchtop lyophilization system engineered for precise, reproducible freeze-drying of heat-sensitive biological and pharmaceutical samples in research laboratories. It operates on the fundamental principle of sublimation—removing water from frozen materials under deep vacuum while maintaining temperatures below the eutectic point—thereby preserving structural integrity, enzymatic activity, immunogenicity, and long-term stability of labile compounds. Unlike conventional thermal drying methods that induce denaturation, oxidation, or collapse, this system enables primary drying at ≤−50 °C and secondary drying at controlled, low-temperature conditions (<60 °C), ensuring minimal thermal stress and maximal recovery upon reconstitution. Its modular multi-manifold configuration allows simultaneous processing of up to eight individually sealed vials (50–1000 mL), while the integrated stoppering mechanism facilitates sterile, in-chamber closure post-drying—critical for aseptic handling of vaccines, monoclonal antibodies, diagnostic reagents, and cell therapy intermediates.
Key Features
- Multi-manifold architecture with eight independent valve-controlled ports for parallel sample processing and real-time pressure monitoring per vial
- Stoppering-compatible chamber design enabling automated or manual compression sealing under vacuum or inert gas (N₂/Ar) backfill
- Air-cooled dual-stage refrigeration system achieving stable condenser temperatures ≤−50 °C, optimized for aqueous and moderately volatile solvent systems
- 304 stainless steel condenser and chamber interior—corrosion-resistant, non-porous, and compliant with ISO 14644-1 Class 5 cleanroom maintenance protocols
- High-transparency acrylic viewing door with anti-fog coating, allowing continuous visual assessment of ice formation, sublimation front progression, and cake morphology
- Touchscreen HMI with embedded PID temperature/vacuum control, real-time drying curve plotting (time vs. shelf temp, condenser temp, chamber pressure), and user-configurable drying stage sequencing
- Integrated silicone oil-free cold trap with 3 kg/24 h ice capacity—designed for high capture efficiency of water vapor and trace organic volatiles (e.g., ethanol, acetone)
- Optional accessories include calibrated thermocouple probes (±0.5 °C), USB-based temperature data loggers with audit-trail functionality, and eutectic point determination kits
Sample Compatibility & Compliance
The TF-FD-1 accommodates diverse sample formats—including serum, plasma, bacterial lysates, viral vectors, lyophilized standards, and small-molecule APIs—in glass vials, scintillation vials, or custom ampoules. Its 0.07 m² effective drying area and uniform shelf temperature distribution (±1 °C) support consistent batch performance across heterogeneous sample loads. The system meets essential engineering benchmarks for laboratory-grade lyophilizers: compliance with IEC 61000-6-3 (EMC emissions), UL 61010-1 (electrical safety), and mechanical design aligned with ISO 22081 (freeze dryer terminology and performance testing). While not certified as GMP manufacturing equipment, its architecture—combined with optional 21 CFR Part 11-compliant data logging—supports validation-ready workflows for method development, stability studies, and preclinical formulation optimization under GLP conditions.
Software & Data Management
The embedded control software provides full-cycle parameter logging at 1-second intervals, storing time-stamped records of chamber pressure, condenser temperature, shelf temperature (if equipped), and valve status. Data export is supported via USB 2.0 to CSV or PDF formats, with metadata fields including operator ID, batch number, and process start/stop timestamps. Optional firmware upgrades enable alarm event tagging, deviation flagging (e.g., vacuum excursion >20 Pa), and integration with LIMS via Modbus TCP. All configuration changes are logged with user authentication, satisfying traceability requirements for internal QA audits and regulatory submissions.
Applications
- Stabilization of therapeutic proteins, peptides, and nucleic acid-based therapeutics during preformulation screening
- Preparation of reference standards and calibration materials for HPLC, ELISA, and mass spectrometry assays
- Routine lyophilization of microbial cultures, bacteriophages, and probiotic strains for long-term cryopreservation
- Drying of tissue homogenates, extracellular vesicles, and exosome preparations without detergent-induced aggregation
- Processing of botanical extracts and traditional medicine formulations requiring retention of thermolabile phytochemicals
- Method development for scale-up to pilot- or production-scale freeze dryers using identical critical process parameters (CPPs)
FAQ
What is the maximum sample volume per vial when using the multi-manifold configuration?
The system supports standard vials ranging from 50 mL to 1000 mL; total loading volume should not exceed 70% of vial capacity to prevent boil-over during primary drying.
Can the TF-FD-1 handle samples containing organic solvents such as acetonitrile or methanol?
It is rated for aqueous systems and low-concentration (<10% v/v) miscible organics; for higher volatility or concentration, consult technical specifications for condenser compatibility and consider supplemental cold trap protection.
Is in-chamber pressure control available?
Yes—chamber pressure is actively regulated via a proportional throttle valve linked to a Pirani + capacitance manometer hybrid sensor, enabling precise control between 1–50 Pa during primary drying.
Does the system support validation documentation packages (IQ/OQ/PQ)?
Factory-installed instruments include calibration certificates for all critical sensors; comprehensive validation templates and test protocols are provided upon request for qualified users.
What maintenance intervals are recommended for optimal performance?
Oil-free vacuum pump oil replacement every 6 months; condenser cleaning after every 10–15 cycles; full system leak check and sensor recalibration annually or per SOP-defined frequency.
