Tianfeng TF-SFD-15m² Pharmaceutical-Grade Production Freeze Dryer

Overview

The Tianfeng TF-SFD-15m² Pharmaceutical-Grade Production Freeze Dryer is a cGMP-compliant, shelf-type lyophilization system engineered for scalable, repeatable, and regulatory-ready freeze-drying of biopharmaceuticals, diagnostic reagents, ophthalmic preparations (including corneal tissue), and high-value food matrices such as functional vegetables. Operating on the fundamental principles of sublimation under deep vacuum and controlled heat transfer, this system removes water from frozen products via primary drying (ice sublimation) followed by secondary drying (desorption of bound water), preserving structural integrity, bioactivity, and long-term stability. Designed to ISO 9001:2015 quality management standards and constructed with AISI 304 stainless steel chambers featuring fully polished, weld-free internal surfaces and radiused corners, the unit minimizes microbial retention points and facilitates cleaning validation—critical for GLP, GMP, and FDA 21 CFR Part 11–aligned operations.

Key Features

• Production-scale lyophilization chamber with 14.76 m² total shelf area, accommodating up to 66,400 vials (Φ16 mm) or 33,900 vials (Φ22 mm), plus up to 290 L of bulk solution per cycle
• 10+1 precision-machined stainless steel shelves (1215 mm × 1215 mm each, 100 mm spacing), uniformly heated/cooled using low-viscosity silicone oil for ±0.5 °C shelf temperature uniformity across −55 °C to +70 °C range
• High-efficiency condenser operating at −75 °C with 290 kg/24 h ice-trapping capacity and ≤0.1 Pa·m³/s system leak rate, ensuring rapid vapor capture and stable vacuum during extended cycles
• Robust PLC-based control system with HMI interface, supporting full recipe storage, real-time parameter logging, alarm history, and audit-trail-capable operation per FDA 21 CFR Part 11 requirements
• Integrated safety architecture: pressure relief valves, overtemperature cutoffs, emergency stop circuits, and interlocked door mechanisms compliant with EN 61000-6-2/6-4 electromagnetic compatibility standards
• Full 3Q documentation package available (IQ/OQ/PQ), including factory acceptance testing (FAT) reports, calibration certificates for all critical sensors (PT100 shelf/condenser probes, Pirani & capacitance manometers), and material traceability records

Sample Compatibility & Compliance

The TF-SFD-15m² supports diverse sample formats—including serum-filled vials, pre-filled syringes, trays of corneal grafts, and bulk vegetable puree—without compromising sterility or process fidelity. Chamber geometry and shelf thermal mass are optimized for both slow-cooling sensitive biologics and rapid-cycle food applications. All wetted parts conform to USP Class VI and ASTM F899 biocompatibility standards. The system meets EU Annex 1 requirements for aseptic processing environments when integrated with isolator or RABS configurations. Validation protocols align with ICH Q5C (stability), Q5D (analytical procedures), and ISO 20957-2 (freeze dryer performance qualification). Documentation supports regulatory submissions to EMA, PMDA, NMPA, and WHO prequalification pathways.

Software & Data Management

The embedded Siemens S7-1500 PLC controls all process sequences—including freezing ramping, primary drying hold, pressure rise test (PRT), and desorption profiling—with configurable setpoints and dynamic PID tuning. Data acquisition occurs at 1 Hz resolution for shelf temperature, chamber pressure, condenser temperature, and vacuum pump status. Raw data exports in CSV format; optional secure SQL database integration enables centralized monitoring across multi-unit facilities. Electronic signatures, user-level access control (admin/operator/auditor tiers), and immutable audit trails satisfy 21 CFR Part 11 compliance. Optional remote diagnostics via encrypted VPN allow authorized service engineers to perform health checks without physical site access.

Applications

• Pharmaceutical: Terminal sterilization-alternative lyophilization of monoclonal antibodies, vaccines, and lyophilized ophthalmic formulations (e.g., corneal preservation media)
• Biotechnology: Stabilization of cell therapies, exosomes, and enzymatic reagents requiring residual moisture <1.5% w/w
• FDA-regulated food processing: Functional vegetable powder production with retained anthocyanins, glucosinolates, and vitamin C content—validated per AOAC 990.12 and ISO 11290-1 protocols
• Academic & contract research: Method development for novel excipient systems, formulation screening, and accelerated stability studies per ICH Q1A(R2)
• Medical device manufacturing: Sterile packaging of lyophilized surgical implants and wound-healing matrices

FAQ

Does the TF-SFD-15m² support automated cycle optimization based on product resistance (R_p) and collapse temperature (T_g‘)?
Yes—the system integrates optional PAT-compatible NIR or tunable diode laser (TDLAS) sensors for real-time product temperature and dry layer resistance estimation, enabling dynamic adjustment of shelf temperature and chamber pressure during primary drying.
Can the unit be validated for sterile barrier system (SBS) integration?
Absolutely. The chamber design includes ISO 14644-1 Class 5-compatible port configurations, VHP-compatible gasket materials, and surface finish Ra ≤0.4 µm—fully compatible with isolator or restricted access barrier system (RABS) coupling.
What documentation is provided for regulatory submission?
Standard delivery includes FAT/SAT reports, IQ/OQ/PQ protocols with executed worksheets, calibration certificates traceable to NIST standards, material compliance dossiers (EN 10204 3.1), and a complete URS-to-FRS traceability matrix.
Is remote software update capability available?
Firmware updates require local USB deployment under controlled change management per ISO 13485; however, remote diagnostic sessions for troubleshooting and performance trending are supported via TLS 1.2–secured connection.
What is the typical lead time for custom configuration (e.g., modified shelf layout or enhanced steam sterilization)?
Standard units ship within 5–7 business days; customized configurations require 8–12 weeks depending on scope, subject to formal engineering review and updated risk assessment (FMEA).