Tianfeng SFD-15E Pharmaceutical-Grade Production Freeze Dryer
| Brand | Tianfeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | SFD-15E Traditional Chinese Medicine (TCM) Freeze Dryer |
| Instrument Type | Standard Shelf-Type |
| Application Scope | Production-Scale |
| Freeze-Drying Area | 15.84 m² |
| Ultimate Vacuum | ≤1 × 10⁻² mbar (≈0.001 mbar) |
| Condenser Temperature | –75 °C |
| Ice Capacity | 300 kg/batch |
| Refrigerant Condensate Removal Rate | 105 kg/24 h |
| Chamber Material | AISI 304 Stainless Steel |
| Shelf Temperature Range | –55 °C to +70 °C |
| Shelf Temperature Uniformity | ±1 °C (at soak stage, empty load) |
| Shelf Dimensions | 1200 × 1200 × 20 mm |
| Number of Shelves | 11 + 1 (active + spare) |
| Shelf Spacing | 100 mm |
| Total Electrical Load | 75 kW (380 V, 50 Hz, 3-phase, 5-wire) |
| Cooling Water Requirement | 30 m³/hr (pressure 1.5–2 bar, inlet temperature ≤25 °C) |
| Overall Dimensions | 5500 × 1950 × 2370 mm |
| Approximate Weight | 8.5 metric tons |
Overview
The Tianfeng SFD-15E Pharmaceutical-Grade Production Freeze Dryer is a cGMP-compliant, large-scale vacuum freeze-drying system engineered for reproducible, scalable lyophilization of thermolabile biopharmaceuticals, traditional Chinese medicine (TCM) formulations, nutraceuticals (e.g., chitosan oligosaccharide powders), and cosmetic actives (e.g., astaxanthin brightening powders). Operating on the fundamental principle of sublimation—where ice is removed directly from frozen product under deep vacuum without passing through the liquid phase—the SFD-15E ensures minimal molecular degradation, high structural integrity retention, and superior long-term stability of dried biomolecules and sensitive phytochemicals. Designed specifically for production environments rather than pilot or R&D use, it delivers a validated 15.84 m² shelf area, enabling batch processing of up to 300 kg of raw material per cycle. Its architecture integrates a dual-stage refrigeration system with a –75 °C condenser and low-viscosity silicone oil as heat-transfer medium, ensuring precise, uniform shelf temperature control across all 12 stainless steel shelves (11 operational + 1 spare), critical for consistent drying kinetics and residual moisture profiles in GMP-regulated manufacturing.
Key Features
- Full cGMP compliance: Designed, fabricated, and documented in accordance with current Good Manufacturing Practice requirements for pharmaceutical and biologics manufacturing.
- AISI 304 stainless steel chamber and shelves: Electropolished interior surfaces with fully radiused corners and stress-relieved welds to eliminate dead zones and support cleanability (CIP/SIP readiness).
- High-precision thermal management: Shelf temperature range from –55 °C to +70 °C with uniformity of ±1 °C (measured at equilibrium during soak phase), verified via calibrated PT100 sensors embedded in each shelf.
- Robust vacuum performance: Ultimate vacuum ≤1 × 10⁻² mbar achieved via dual-stage oil-sealed rotary vane pumps and integrated vacuum measurement with Pirani/capacitance manometers.
- Scalable condensation capacity: 300 kg/batch ice-trapping capability with condenser operating at –75 °C, supporting high-moisture-load TCM extracts and viscous biopolymer solutions.
- Industrial-grade automation: OMRON PLC-based control system with HMI interface, pre-programmable multi-step drying cycles, real-time data logging, and full audit trail functionality compliant with FDA 21 CFR Part 11 requirements.
- Modular utility integration: Dedicated cooling water circuit (30 m³/hr @ ≤25 °C inlet) and 75 kW total electrical load optimized for stable operation in continuous production settings.
Sample Compatibility & Compliance
The SFD-15E accommodates diverse sample formats including bulk liquid fills in stainless steel trays (standard 1200 × 1200 mm), stoppered vials (via optional tray adapters), and custom containers for herbal decoctions or marine-derived actives such as astaxanthin emulsions and chitosan oligosaccharide solutions. Its chamber geometry and shelf layout are compatible with ISO Class 5–8 cleanroom integration. All wetted parts meet USP Class VI and EP 3.1.5 extractables/leachables criteria. The system supports full qualification documentation: IQ/OQ/PQ protocols, 3Q certification packages, and traceable calibration records aligned with ISO/IEC 17025 and ASTM F2476-22 (Standard Guide for Lyophilization Process Development). It satisfies regulatory expectations for sterile product manufacturing under Annex 1 (EU GMP), WHO TRS 986, and NMPA Technical Guidelines for TCM Injectable Preparations.
Software & Data Management
Control and monitoring are executed via an integrated OMRON NJ-series PLC paired with a Lenovo industrial PC running proprietary freeze-drying software. The platform enables full-cycle programming—including freezing ramp rates, primary drying hold times, pressure-controlled secondary drying, and shelf temperature profiling—with ≥1000 user-defined recipe storage capacity. All process parameters (shelf temp, chamber pressure, condenser temp, vacuum level, time stamps) are recorded at ≤1-second intervals and stored in encrypted binary format with SHA-256 checksum verification. Audit trails are immutable, timestamped, and user-role authenticated; electronic signatures comply with 21 CFR Part 11 Subpart B. Raw data exports support CSV, PDF, and XML formats for integration into LIMS or MES systems. Remote diagnostics and secure VPN access are available via optional Ethernet/IP or OPC UA interfaces.
Applications
This system is routinely deployed in commercial-scale lyophilization of: (1) TCM injectables and oral disintegrating tablets (e.g., ginseng saponins, cordycepin-rich Ophiocordyceps sinensis extracts); (2) marine bioactives including astaxanthin-loaded liposomes and enzymatically depolymerized chitosan oligosaccharides (COS) for dermal delivery; (3) monoclonal antibody formulations, viral vector suspensions, and plasmid DNA products; (4) diagnostic reagents (e.g., ELISA kits, PCR master mixes); and (5) functional food ingredients requiring extended shelf life without preservatives. Its validated performance supports both terminal sterilization-compatible cycles and aseptic processing environments when coupled with isolator or RABS integration.
FAQ
Is the SFD-15E suitable for sterile pharmaceutical manufacturing?
Yes—it is designed to interface with Grade A/B cleanrooms and supports SIP (steam-in-place) validation of the chamber and condenser, provided auxiliary utilities meet EN 285 steam quality standards.
Can the system be customized for non-standard tray dimensions or special containment requirements?
Yes—Tianfeng offers engineering-led customization including modified shelf spacing, explosion-proof configurations (ATEX Zone 2), and nitrogen-purge integration for oxygen-sensitive compounds.
What validation support is included with purchase?
Standard delivery includes FAT (Factory Acceptance Test) documentation, IQ/OQ templates, and assistance with PQ execution. Full 3Q validation packages and independent third-party certification are available as optional services.
Does the system meet international regulatory requirements beyond China’s NMPA?
Yes—its design basis, material certifications, documentation structure, and control architecture align with FDA, EMA, PMDA, and Health Canada expectations for production-scale lyophilizers used in human biologics and botanical drug manufacturing.
What maintenance intervals and spare parts availability does Tianfeng guarantee?
Preventive maintenance is scheduled every 1,000 operational hours or annually (whichever occurs first); critical spares—including vacuum pump oil, silicone oil, O-rings, and PLC modules—are stocked globally with ≤72-hour air freight lead time from Shanghai headquarters.
