Tianfeng TF-SFD-20m²E Pharmaceutical Freeze Dryer (Production-Scale, Shelf-Type)

Overview

The Tianfeng TF-SFD-20m²E is a production-scale, shelf-type pharmaceutical freeze dryer engineered for robust, repeatable lyophilization of thermolabile biologics—including monoclonal antibodies, recombinant proteins, peptides, and small-molecule APIs—under cGMP-compliant manufacturing conditions. Based on the fundamental principles of sublimation under deep vacuum, the system removes water from frozen product via primary drying (ice sublimation) followed by secondary drying (desorption of bound water), preserving structural integrity, bioactivity, and long-term stability. With a validated lyophilization area of 20.31 m² and a condenser capacity of 400 kg/24 h at −75 °C, the unit supports high-throughput batch processing in pilot and commercial manufacturing environments. Its chamber is constructed from electropolished AISI 304 stainless steel with fully radiused internal corners and stress-relieved, uniformly heated shelves—minimizing dead zones, facilitating cleaning-in-place (CIP), and ensuring compliance with FDA guidance for sterile process equipment design.

Key Features

• Shelf system comprising 11 active + 1 spare shelves (1215 × 1520 mm each), spaced at precise 100 mm intervals for optimal heat transfer uniformity and tray loading flexibility
• Low-viscosity silicone oil as thermal transfer medium—enabling stable, ±0.5 °C shelf temperature uniformity across the full operating range (−55 to +70 °C), even at cryogenic setpoints
• PLC-based control architecture with integrated HMI interface, supporting recipe-driven operation, real-time parameter logging, alarm management, and full audit trail generation per 21 CFR Part 11 requirements
• Deep-vacuum capability down to 2.7 Pa, achieved via dual-stage oil-lubricated rotary vane pump and optimized chamber sealing—validated against ISO 20517 leak rate specification (≤ 0.1 Pa·m³/s)
• cGMP-aligned mechanical design: fully welded, passivated chamber interior; smooth, polished welds on all internal piping and shelf supports; zero crevices or uncleanable geometries
• Comprehensive validation package available—including IQ/OQ/PQ protocols, sensor calibration certificates, and traceable documentation aligned with EU Annex 15 and WHO TRS 986 guidelines

Sample Compatibility & Compliance

The TF-SFD-20m²E accommodates diverse dosage forms: bulk solutions (up to 400 L per cycle), serum vials (Φ16 mm: 92,800 units; Φ22 mm: 47,400 units), trays, and stoppered containers. It meets critical regulatory expectations for pharmaceutical manufacturing infrastructure, including adherence to ISO 9001:2015 quality management systems and design conformity with cGMP Annex 1 (EU), USP , and ICH Q5C stability requirements. All wetted surfaces are fabricated from AISI 304 stainless steel with Ra ≤ 0.8 µm surface finish, certified for compatibility with WFI rinse cycles and compatible with VHP (vaporized hydrogen peroxide) decontamination protocols. The system supports full lifecycle compliance—from design qualification through routine operational monitoring and periodic requalification.

Software & Data Management

The embedded PLC controller runs proprietary lyoControl™ firmware, offering deterministic real-time control of shelf temperature, chamber pressure, condenser temperature, and vacuum ramp profiles. Data acquisition occurs at ≥1 Hz resolution for all critical parameters, stored locally in non-volatile memory with SHA-256 hashing for integrity verification. Export formats include CSV and PDF reports compliant with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Electronic signatures, role-based access control (RBAC), and 21 CFR Part 11–compliant audit trails are enabled by default. Optional integration with MES/SCADA platforms is supported via OPC UA and Modbus TCP protocols.

Applications

This freeze dryer serves primary applications in biopharmaceutical process development and commercial manufacturing: terminal sterilization–sensitive protein therapeutics; peptide-based vaccines; enzyme formulations; diagnostic reagents; and sterile ophthalmic and injectable products. Its thermal stability and vacuum fidelity make it suitable for optimizing lyophilization cycles using Design of Experiments (DoE) methodologies, supporting Quality by Design (QbD) initiatives. Secondary applications include R&D-scale process transfer studies, stability batch production per ICH Q1 guidelines, and contract manufacturing organization (CMO) support for Phase III and commercial supply.

FAQ

Is the TF-SFD-20m²E suitable for sterile manufacturing environments?

Yes—it is designed and qualified for Grade A/B cleanroom integration, with chamber pressure differentials, HEPA-filtered nitrogen purge capability, and full compliance with ISO 14644-1 Class 5 requirements when installed with appropriate HVAC interfaces.
Can the system be validated for regulatory submission?

Yes—Tianfeng provides complete 3Q documentation packages (IQ/OQ/PQ), including calibrated sensor traceability to NIST standards, cycle mapping reports, and deviation handling records aligned with FDA and EMA expectations.
What level of after-sales technical support is provided?

Tianfeng offers global service coverage: on-site commissioning, operator and maintenance training, annual preventive maintenance contracts, and 24/7 remote diagnostics. All field service engineers hold ASME BPE and ISO 13485-certified qualifications.
Does the system support custom cycle development?

Yes—the PLC platform allows full programmability of ramp rates, hold durations, pressure modulation, and shelf temperature gradients—enabling empirical and model-based cycle optimization for novel formulations.
Are spare parts and consumables readily available?

All critical components—including silicone oil, vacuum pump oil, O-rings, shelf sensors, and filter elements—are stocked globally and supplied with documented shelf-life and CoA certification.