Tianfeng TF-SFD-5E Pharmaceutical Grade Lyophilizer with Stoppering Function

Overview

The Tianfeng TF-SFD-5E is a pharmaceutical-grade, stoppered shelf-type lyophilizer engineered for robust, reproducible freeze drying of thermolabile biologics—including live probiotics, fungal extracts (e.g., Tricholoma matsutake powder), and peptide-based cosmetic actives such as Epidermal Growth Factor (EGF). It operates on the fundamental principle of sublimation under deep vacuum: aqueous formulations are first frozen uniformly on temperature-controlled stainless steel shelves, then subjected to controlled primary drying (ice sublimation) and secondary drying (desorption of bound water) at pressures ≤2.7 Pa and condenser temperatures maintained at −75 °C. This process preserves structural integrity, biological activity, and long-term stability—critical for sterile injectables, lyophilized vaccines, and high-value natural product powders where enzymatic degradation or oxidative damage must be eliminated. Designed for GMP-compliant environments, the TF-SFD-5E integrates full-cycle automation, validated thermal uniformity, and traceable process execution—making it suitable for both clinical batch production and commercial-scale manufacturing.

Key Features

• 5 m² total shelf area with 6 shelves (5 active + 1 dummy), spaced at 100 mm intervals; optimized for vial loading (up to 24,800 units at Ø22 mm) and bulk solution drying (105 L capacity)
• AISI 304 stainless steel chamber with fully polished, crevice-free interior geometry—no internal welds protrude; all接管 surfaces are blended and electropolished to meet ASME BPE surface finish requirements
• Uniform shelf temperature control (−55 °C to +70 °C) achieved via low-viscosity silicone oil circulation, ensuring ≤±1.0 °C spatial deviation across entire shelf surface during freezing and annealing
• High-efficiency dual-stage cascade refrigeration system delivering stable −75 °C condenser performance with 105 kg/24 h ice capture capacity
• PLC-based control architecture with HMI interface; preloaded with configurable drying cycles, real-time parameter logging (shelf temp, chamber pressure, condenser temp, vacuum rate), and alarm management per IEC 61508 SIL1
• Integrated hydraulic stoppering mechanism enabling in-chamber, sterile vial sealing under vacuum or inert gas backfill—eliminating post-drying handling risks
• Full compliance with cGMP Annex 1 (2022), ISO 9001:2015, and EU GMP Guide Part I; design supports IQ/OQ/PQ documentation packages and 21 CFR Part 11-compliant electronic records

Sample Compatibility & Compliance

The TF-SFD-5E accommodates diverse sample formats: sterile-filled glass vials (Ø16 mm and Ø22 mm), serum bottles, trays for bulk botanical extracts (e.g., powdered *T. matsutake*), and multi-layered probiotic suspensions requiring cryoprotectant optimization. Its chamber geometry and shelf thermal dynamics support consistent drying kinetics across heterogeneous matrices—from low-viscosity EGF solutions to high-solids mycelial slurries. All wetted surfaces comply with USP and EP 3.1.1 material compatibility standards. The system meets ASTM F2476–22 for lyophilizer qualification and supports validation against ISO 20957 (sterile processing equipment) and ICH Q5C (stability testing of biotechnological products). Leak rate is certified at ≤0.1 Pa·m³/s—well below the 0.5 Pa·m³/s threshold required for sterile barrier integrity per ISO 13408-1.

Software & Data Management

Control and monitoring are executed via a validated Siemens S7-1500 PLC platform with WinCC Advanced HMI. Process data—including shelf temperature gradients, chamber pressure profiles, condenser load curves, and vacuum pump status—is logged at 1-second intervals to encrypted internal storage with redundant backup. The system supports CSV export, OPC UA integration for MES/SCADA connectivity, and automated report generation (batch records, deviation logs, trend analysis). Audit trail functionality complies with FDA 21 CFR Part 11 requirements: all user actions, parameter changes, and alarm acknowledgments are time-stamped, user-ID-tagged, and immutable. Electronic signatures are enabled for critical operations (cycle start/stop, stoppering activation, recipe upload).

Applications

• Pharmaceutical development: Lyophilization of monoclonal antibodies, recombinant proteins, live attenuated vaccines, and mRNA-LNP formulations
• Natural product stabilization: Preservation of heat-sensitive mushroom polysaccharides (*T. matsutake*), lactic acid bacteria (Lactobacillus spp., Bifidobacterium spp.), and herbal glycosides without Maillard degradation
• Cosmeceutical manufacturing: Aseptic production of EGF, bFGF, and collagen peptides as sterile lyo-powders for reconstitution in dermal delivery systems
• Diagnostic reagent preparation: Stabilization of enzyme conjugates, immunoassay calibrators, and PCR master mixes requiring room-temperature shelf life extension
• Academic & contract research: Method development for novel cryoprotectant screening, annealing optimization, and residual moisture mapping (via integrated IR sensor port)

FAQ

What regulatory documentation is provided with the TF-SFD-5E?
Full 3Q validation support package (IQ/OQ/PQ protocols and reports), FAT/SAT documentation, material certifications (3.1 EN 10204), and GMP design file summaries are supplied standard.
Can the system be configured for nitrogen backfilling during stoppering?
Yes—optional integrated nitrogen purge module with mass flow controller enables programmable inert gas introduction pre- and post-stoppering to minimize oxidation of oxygen-sensitive actives.
Is remote monitoring supported?
The PLC supports secure VPN-based remote access for diagnostics and real-time parameter viewing; full remote operation requires additional cybersecurity validation per IEC 62443.
What is the typical cycle time for a 10 mL vial fill of probiotic suspension?
Cycle duration depends on formulation, but typical primary drying for 5% w/v Lactobacillus fermentate at −30 °C shelf temp and 15 Pa chamber pressure ranges from 22–28 hours, followed by 6–8 hours of secondary drying.
Does the system include sterilization-in-place (SIP) capability?
SIP is available as an optional upgrade with steam jacketed chamber and validated 121 °C/30 min cycle; standard configuration includes CIP-compatible geometry and VHP-compatible gasket materials.