Tianfeng TF-LYO-7.5 Pharmaceutical-Grade Vacuum Freeze Dryer

Overview

The Tianfeng TF-LYO-7.5 is a pharmaceutical-grade, shelf-type vacuum freeze dryer engineered for pilot-scale and early-stage production applications in regulated biopharmaceutical and traditional Chinese medicine (TCM) manufacturing environments. It operates on the principle of sublimation-based lyophilization: frozen product is subjected to deep vacuum while controlled heat is applied via conductive stainless steel shelves, enabling water removal in its solid phase without passing through liquid state—thereby preserving thermolabile active pharmaceutical ingredients (APIs), proteins, enzymes, and herbal extracts with minimal structural or functional degradation. Designed and manufactured in Shanghai under ISO 9001:2015 quality management protocols, the system integrates cGMP-aligned mechanical architecture—including full AISI 304 stainless steel construction, electropolished internal surfaces, zero dead-leg geometry, and validated thermal uniformity—ensuring compliance readiness for regulatory submissions and audit trails.

Key Features

• Monolithic structural design with integrated drying chamber and condenser, minimizing footprint and interconnection leak points.
• 7.56 m² total shelf area across eight (7+1) AISI 304 stainless steel shelves (1200 × 900 × 20 mm), each precision-machined and stress-relieved to maintain flatness within ≤0.1 mm/m over full temperature range.
• Shelf temperature control via low-viscosity silicone oil circulation, achieving stable operation from −55 °C to +70 °C at inlet; uniformity verified at ±1 °C under empty-chamber equilibrium conditions per ICH Q5C Annex 2 methodology.
• Cryogenic cold trap rated at −75 °C with 140 kg/24 h condensation capacity and 100 kg/batch ice-holding capability, utilizing dual-stage cascade refrigeration with HFC-free refrigerants.
• Ultimate vacuum performance of ≤1.0 Pa (measured via capacitance manometer), supported by oil-lubricated dual-stage rotary vane vacuum pump and inline particulate/moisture filtration.
• OMRON CP1E-N60DR-A PLC controller with redundant Ethernet/IP interface, supporting deterministic real-time sequencing, alarm logging, and hardware-level interlocks for door seal integrity, pressure differential, and shelf temperature deviation.
• Full insulation package combining high-density silica-alumina ceramic fiber (inner layer) and closed-cell polyurethane foam (outer layer), limiting surface temperature rise to <40 °C under continuous operation.

Sample Compatibility & Compliance

The TF-LYO-7.5 accommodates vial, tray, and bulk-loaded configurations for diverse material classes including sterile APIs, lyophilized monoclonal antibody intermediates, TCM decoction concentrates, vaccine candidates, and fine chemical intermediates. Chamber geometry supports standard ISO 8573-1 Class 3 compressed air interfaces and optional SIP (steam-in-place) integration for terminal sterilization validation. All wetted surfaces meet ASME BPE 2021 surface finish requirements (Ra ≤ 0.4 µm post-electropolish), and weld joints are fully radiographed and passivated per ASTM A967. The system conforms to EU Annex 1 (2022), USP , and WHO TRS 986 Annex 5 for aseptic processing equipment qualification. Full 3Q documentation (IQ/OQ/PQ) is available upon request, including temperature mapping reports, vacuum decay tests, and shelf heat transfer coefficient (U-value) validation per ISO 13408-3.

Software & Data Management

The embedded HMI provides intuitive recipe-driven operation with up to 99 programmable cycles, each containing multiple ramp/hold steps with independent shelf temperature, chamber pressure, and condenser temperature setpoints. All process data—including real-time shelf thermocouple readings (Class A Pt100), absolute pressure (capacitance gauge), condenser temperature, vacuum pump current, and cooling water flow—are timestamped and logged at 1-second intervals to internal SSD storage (≥2 years retention). Data export complies with FDA 21 CFR Part 11 requirements: electronic signatures, audit trail with immutable records, role-based access control (admin/operator/auditor), and encrypted CSV/PDF report generation. Optional OPC UA server enables seamless integration into MES/SCADA platforms (e.g., Siemens SIMATIC IT, Rockwell FactoryTalk).

Applications

• Stabilization of heat-sensitive biologics: monoclonal antibodies, recombinant enzymes, viral vectors, and mRNA-LNPs.
• Lyophilization of traditional Chinese medicine extracts requiring preservation of glycosidic bonds and volatile terpenoids.
• Processing of sterile small-molecule APIs where residual solvent limits must meet ICH Q3C thresholds.
• Development of clinical trial supply batches (Phase I–III) under GMP-compliant conditions.
• Scale-down modeling for commercial freeze-drying cycle development and optimization.
• Contract manufacturing of lyophilized diagnostics reagents and reference standards.

FAQ

Does the TF-LYO-7.5 support steam-in-place (SIP) sterilization?
Yes—optional SIP configuration includes jacketed chamber design, sanitary steam distribution manifolds, and integrated temperature validation ports compliant with HTM 2030 and EN 285.
What is the validation support package included with delivery?
Standard delivery includes FAT protocol and report, IQ/OQ templates aligned with ASTM E2500, and calibration certificates for all critical sensors traceable to NIST.
Can shelf temperature be controlled independently per layer?
No—shelves operate in parallel mode via common oil circuit; however, temperature uniformity across all layers is guaranteed at ±1 °C under load per validated mapping study.
Is remote monitoring and troubleshooting supported?
Yes—via secure TLS-encrypted web interface with configurable email/SMS alerts for critical alarms, accessible through authorized IP whitelisting.
What cooling utility requirements apply beyond chilled water?
The system requires only industrial-grade chilled water (15 m³/hr, ≤25 °C, 1.5–2 bar); no additional glycol loop, nitrogen purge, or compressed air is mandatory for basic operation.