Tianfeng TF-SFD-10m² Pharmaceutical Production-Scale Freeze Dryer

Overview

The Tianfeng TF-SFD-10m² Pharmaceutical Production-Scale Freeze Dryer is an engineered lyophilization system designed for GMP-compliant manufacturing of sterile injectables, biologics, and thermolabile pharmaceuticals. It operates on the principle of sublimation—removing water from frozen product under deep vacuum while maintaining temperature control below the eutectic point—thereby preserving structural integrity, biological activity, and chemical stability. Unlike conventional drying methods involving elevated temperatures, freeze drying minimizes thermal degradation, oxidation, and molecular aggregation. The system’s 10.33 m² shelf area supports batch processing of up to 46,400 vials (Φ16 mm) or 23,700 vials (Φ22 mm), with a maximum load capacity of 220 L of aqueous solution per cycle. Its −75 °C condenser ensures efficient vapor capture across extended cycles, while the 2.7 Pa ultimate vacuum enables rapid primary drying and reproducible secondary drying profiles.

Key Features

• Robust AISI 304 stainless steel chamber with fully polished, radius-rounded internal geometry to eliminate dead zones and facilitate CIP/SIP compatibility
• Stress-relieved, uniformly heat-treated shelves ensuring ±0.5 °C temperature uniformity across all 10 shelves (9 active + 1 reference), critical for consistent cake morphology and residual moisture distribution
• Low-viscosity silicone oil as thermal transfer medium, enabling stable and responsive shelf temperature control from −55 °C to +70 °C with minimal thermal lag
• Integrated PLC-based automation system compliant with IEC 61131-3 standards; supports recipe-driven operation, real-time parameter logging, and alarm management with configurable event history
• Full validation support package including IQ/OQ/PQ protocols aligned with FDA 21 CFR Part 11 requirements for electronic records and signatures
• Modular design with standardized interfaces for integration into existing cleanroom utilities (compressed air, nitrogen purge, purified water, steam)

Sample Compatibility & Compliance

The TF-SFD-10m² accommodates a broad range of pharmaceutical formulations—including monoclonal antibodies, vaccines, peptides, small-molecule APIs, and herbal extracts—in vial, tray, or bulk configurations. Its chamber geometry and shelf layout are optimized for both serum-filled and lyophilized powder applications requiring strict sterility assurance. The system conforms to current Good Manufacturing Practice (cGMP) guidelines outlined in EU Annex 1 and USP , and meets mechanical and safety requirements per ISO 13485 and PED 2014/68/EU. All wetted surfaces are electropolished to Ra ≤ 0.4 µm, and weld joints undergo 100% dye penetrant testing and passivation verification. Documentation includes material traceability certificates, pressure vessel certification (ASME Section VIII Div. 1), and full FAT/SAT reports.

Software & Data Management

Control is managed via a validated HMI-PLC architecture featuring password-protected user roles (Operator, Technician, Administrator), audit-trail-enabled data logging (≥30 days buffered storage), and encrypted export to CSV or PDF formats. The system supports 21 CFR Part 11 compliance through electronic signature workflows, automatic timestamping, and immutable record retention. Process data—including shelf temperature, chamber pressure, condenser temperature, and vacuum rate—is sampled at 1-second intervals and mapped to time-stamped trend curves. Optional SCADA integration enables centralized monitoring across multi-unit facilities and synchronization with MES platforms via OPC UA or Modbus TCP.

Applications

This freeze dryer is routinely deployed in Phase III clinical supply manufacturing, commercial-scale aseptic fill-finish operations, and analytical reference standard preparation. Typical use cases include lyophilization of protein-based therapeutics where conformational stability must be preserved; preparation of sterile ophthalmic suspensions requiring particle size retention post-reconstitution; stabilization of live attenuated viral vectors; and production of combination products containing both hydrophilic and lipophilic excipients. Its scalability allows direct process transfer from laboratory-scale (e.g., TF-SFD-0.1) to commercial batches without re-optimization of critical quality attributes (CQAs) such as reconstitution time, moisture content (<1.0% w/w), and cake structure homogeneity.

FAQ

Is this system suitable for sterile manufacturing in Grade A environments?
Yes—the chamber and door sealing system meet ISO Class 5 (Class 100) airborne particulate limits when integrated with appropriate HVAC and isolator interfaces.
Can the system be qualified for regulatory submission (e.g., FDA BLA or EMA MAA)?
Yes—Tianfeng provides full 3Q documentation packages, including risk assessments (FMEA), sensor calibration records, and protocol-executed reports traceable to ASTM E2500 and ICH Q5C.
What level of after-sales technical support is available internationally?
Tianfeng offers remote diagnostics, on-site commissioning, operator training, and spare parts logistics with regional service hubs in Singapore, Germany, and the United States.
Does the system support nitrogen backfill and stoppering under vacuum?
Yes—optional integrated stoppering module with programmable force control and inert gas (N₂ or argon) purging capability is available as a factory-installed option.
How is thermal mapping performed during qualification?
Shelf temperature uniformity is verified using calibrated PT100 sensors per ISO 13408-1, with ≥36 measurement points per shelf across three representative cycles under loaded and unloaded conditions.