Tianfeng TF-SFD-3E Pharmaceutical-Grade In-Situ Freeze Dryer with Hydraulic Stoppering
| Brand | Tianfeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TF-SFD-3E (3 m² Shelf Area) |
| Instrument Type | Hydraulic Stoppering Freeze Dryer |
| Application Scope | Production-Scale |
| Shelf Area | 3 m² |
| Ultimate Vacuum | ≤10 Pa |
| Condenser Capacity (24 h) | 3–1000 kg/24 h |
| Condenser Temperature | ≤−60 °C |
| Main Unit Dimensions | 4250 × 1150 × 2760 mm |
| Shelf Temperature Range | −55 to +70 °C |
| Condenser Capture Capacity | 65 kg |
| System Leak Rate | ≤0.1 Pa·m³/s |
| Refrigeration Technology | Cascade Refrigeration |
| Heating Power | 6 kW |
| Total Installed Power | 30 kW |
| Shelf Configuration | 5+1 stainless steel shelves (615 mm × 915 mm, 100 mm spacing) |
| Shelf Medium | Silicone Oil (±1 °C uniformity) |
| Optional | Eutectic Point Tester, Data Logger, Inert Gas Purge Valve, Automatic Stoppering |
Overview
The Tianfeng TF-SFD-3E is a pharmaceutical-grade, in-situ freeze dryer engineered for GMP-compliant production-scale lyophilization of sterile drug products. It operates on the fundamental principle of sublimation under deep vacuum—where frozen water transitions directly from solid to vapor phase without passing through liquid, preserving structural integrity, bioactivity, and chemical stability of thermolabile compounds. Designed for integration into regulated manufacturing environments, this system features hydraulic stoppering capability, enabling full-cycle automation from pre-freezing through primary and secondary drying to final vial sealing—all within a single, ISO Class 5-compatible chamber. Its architecture conforms to key design considerations outlined in USP , ISO 13408-1, and EU Annex 1 requirements for aseptic processing equipment.
Key Features
- In-situ freezing and drying: Eliminates manual transfer between freezing and drying units, minimizing contamination risk and process variability.
- Hydraulic stoppering mechanism: Provides precise, repeatable closure of rubber stoppers under controlled pressure, ensuring consistent headspace integrity and container-closure integrity (CCI) validation readiness.
- Cascade refrigeration system: Achieves condenser temperatures ≤−60 °C (standard) or ≤−75 °C (optional), delivering high capture efficiency for volatile solvents and supporting extended batch cycles with up to 1000 kg/24 h ice load capacity.
- Silicone oil-heated shelves: Maintain ±1 °C temperature uniformity across all 6 shelves (5 active + 1 bottom shelf), critical for reproducible drying kinetics and residual moisture control per ICH Q5C guidelines.
- Full 304 stainless steel interior: Includes electropolished surfaces, zero dead-leg design, and sloped drainage—facilitating CIP/SIP compatibility and meeting ASME BPE surface finish standards.
- 10.4″ color touchscreen HMI: Displays real-time shelf temperature, chamber pressure, condenser temperature, and drying curves; supports PID-based process parameter tuning and alarm logging compliant with FDA 21 CFR Part 11 (when paired with audit-trail-enabled software).
- Integrated inert gas purge valve: Enables nitrogen or argon backfilling post-drying to mitigate oxidation of sensitive APIs and stabilize amorphous formulations.
Sample Compatibility & Compliance
The TF-SFD-3E accommodates standard pharmaceutical primary packaging formats—including 10–50 mL serum vials (Φ16 mm to Φ22 mm), dual-chamber bags, prefilled syringes, and lyophilized capsule matrices—with a maximum loading capacity of 13,300 vials (Φ16 mm) or 6,800 vials (Φ22 mm). Its validated shelf geometry (615 × 915 mm per shelf, 100 mm spacing) ensures uniform heat transfer and minimal edge effects during primary drying. The system meets mechanical and operational prerequisites for compliance with ISO 22000 (food-grade variants), ISO 13485 (medical device manufacturing), and EU GMP Annex 1 (sterile processing). Optional eutectic point detection and calibrated temperature mapping kits support IQ/OQ/PQ documentation packages aligned with WHO TRS 986 and PDA Technical Report No. 36.
Software & Data Management
The embedded control system records time-stamped process data at user-defined intervals (1–60 s), storing >1 million data points locally with automatic backup to external USB or network drives. All parameters—including shelf setpoints, chamber pressure ramps, condenser load profiles, and stopper compression force—are exportable in CSV or PDF format for regulatory submission. When configured with optional validation-grade software, the system provides electronic signatures, role-based access control, and full audit trail functionality satisfying 21 CFR Part 11 requirements. Integrated Ethernet and RS485 ports enable SCADA-level integration with MES or DCS platforms for centralized batch record management and real-time deviation alerting.
Applications
This freeze dryer serves critical unit operations across biopharmaceutical and small-molecule development and manufacturing: lyophilization of monoclonal antibodies, recombinant proteins, viral vectors, and mRNA-LNPs; terminal sterilization of heat-sensitive antibiotics and enzyme inhibitors; stabilization of diagnostic reagents and immunoassay standards; and formulation development of oral disintegrating tablets (ODTs) and nasal spray powders. It is routinely deployed in QC/QA labs for stability studies per ICH Q1A(R3), in pilot plants for scale-up correlation modeling, and in commercial facilities for cGMP production of injectables—including lyophilized vaccines, oncology biologics, and ophthalmic suspensions.
FAQ
What regulatory standards does the TF-SFD-3E support for GMP validation?
It supports IQ/OQ/PQ execution per ASTM E2500, ISPE Baseline Guide Vol. 4, and EU Annex 1; optional qualification packages include temperature mapping, leak testing, and stopper compression force verification.
Can the system be integrated into an existing cleanroom HVAC and utility infrastructure?
Yes—its modular utility interface accommodates standard compressed air (6–7 bar), chilled water (7–12 °C), and purified steam (≥121 °C) connections, with configurable exhaust routing for solvent recovery systems.
Is remote monitoring and alarm notification available?
With optional IoT gateway hardware and cloud-based dashboard subscription, users receive SMS/email alerts for critical deviations (e.g., vacuum loss >5 Pa, shelf temp drift >±2 °C) and access historical trend analysis via secure web portal.
What maintenance protocols are recommended for long-term reliability?
Quarterly oil analysis for cascade compressors, annual calibration of Pt100 shelf sensors per ISO/IEC 17025, and semi-annual inspection of hydraulic stoppering seals per manufacturer torque specifications.
Does Tianfeng provide FAT/SAT documentation and operator training?
Yes—factory acceptance testing includes full functional demonstration and raw data review; site acceptance testing includes installation verification, operational qualification, and on-site SOP development support with certified GMP trainers.
