Tianfeng TF-FZG-300 Industrial-Scale Freeze Dryer with 296 m² Shelf Area

Overview

The Tianfeng TF-FZG-300 is an industrial-scale, shelf-type freeze dryer engineered for high-throughput, continuous batch processing of heat-sensitive biological and food-grade materials. Operating on the fundamental principle of sublimation—where ice transitions directly from solid to vapor under controlled low-pressure and low-temperature conditions—the system enables preservation of structural integrity, enzymatic activity, volatile compounds, and nutritional profiles in products such as fruit and vegetable crisps, functional enzyme powders, traditional Chinese medicinal herbs (e.g., Ophiocordyceps sinensis), pet nutrition snacks, and marine-derived ingredients. With a validated shelf area of 296 m² and a maximum batch capacity of 3 metric tons per cycle, the TF-FZG-300 bridges laboratory process development and commercial-scale manufacturing, supporting cGMP-aligned production environments in food, nutraceutical, and herbal supplement industries.

Key Features

• GMP-compliant chamber and shelf construction using mirror-finished AISI 304 stainless steel, minimizing microbial retention and enabling clean-in-place (CIP) compatibility.
• Integrated condenser–chamber architecture (front-chamber/rear-condenser layout) with ergonomic observation windows equipped with LED illumination for real-time visual monitoring without vacuum break.
• Dual-material shelf options: extruded aluminum (enhanced thermal conductivity, uniform surface finish) or custom-fabricated 304 stainless steel shelves (electropolished edges, seamless welds, optimized for hygiene-critical applications).
• Cold trap fabricated from pharmaceutical-grade stainless steel tubing, configurable as monolithic or modular coil assemblies to match specific moisture load profiles and maintenance protocols.
• High-efficiency refrigeration system incorporating premium imported compressors and cascade cooling stages, achieving stable cold trap temperatures ≤ −65 °C within ≤ 120 minutes from ambient start-up.
• Modular vacuum train design, compatible with ULVAC (formerly Anelva) high-vacuum pump systems, delivering ≤ 2.7 Pa ultimate pressure with low oil carryover and extended service intervals.
• Omron CJ2M-series PLC integrated with industrial touchscreen HMI and embedded IPC, supporting full recipe management, multi-step drying profiles, real-time parameter logging, and remote diagnostics via secure Wi-Fi or Ethernet.

Sample Compatibility & Compliance

The TF-FZG-300 accommodates heterogeneous sample formats—including trays, stainless steel trolleys (12 units, SUS304), and custom carriers—suitable for raw fruits (e.g., blueberries), leafy vegetables, fermented enzyme slurries, powdered botanical extracts, and whole-dried entomological biomass. Its mechanical and material specifications align with core hygienic design standards referenced in ISO 22000, FDA 21 CFR Part 11 (when paired with audit-trail-enabled software configuration), and EU GMP Annex 15 for validation of lyophilization processes. All wetted surfaces meet ASME BPE 2021 surface roughness requirements (Ra ≤ 0.8 µm), and the unit supports IQ/OQ/PQ documentation packages for regulatory submissions in North America, EEA, and APAC markets.

Software & Data Management

The embedded control platform records time-stamped data for shelf temperature, chamber pressure, condenser temperature, vacuum pump status, and power consumption at user-defined intervals (1–60 sec). Data export is supported in CSV and PDF formats; optional SQL database integration enables long-term trending and statistical process control (SPC) analysis. The system complies with ALCOA+ data integrity principles when configured with electronic signatures, role-based access control, and automated backup to network-attached storage (NAS). Audit trails are retained for ≥ 36 months and include operator logins, parameter modifications, step jumps, and alarm acknowledgments—fully traceable for FDA 21 CFR Part 11 and EU Annex 11 compliance.

Applications

• Production-scale freeze drying of anthocyanin-rich berries (e.g., blueberry powder) while retaining >92% polyphenol content and color stability over 24-month shelf life.
• Stabilization of thermo-labile digestive enzymes (protease, amylase, lipase) in yeast-fermented果蔬 (fruit-vegetable) matrices for functional food supplements.
• GMP-compliant dehydration of Ophiocordyceps sinensis mycelia and fruiting bodies, preserving cordycepin and adenosine concentrations per USP-NF monographs.
• Bulk processing of seafood hydrolysates and collagen peptides without Maillard browning or molecular weight degradation.
• Continuous pilot-to-production transition for novel pet treat formulations requiring pathogen reduction (e.g., Salmonella, Listeria) via validated primary drying endpoints.

FAQ

Is the TF-FZG-300 suitable for sterile pharmaceutical manufacturing?
It is designed for food, nutraceutical, and herbal applications meeting GMP hygiene standards—not aseptic Grade A/B classification. Sterile processing requires additional isolator integration and HEPA filtration upgrades.
Can shelf temperature be independently controlled per layer?
No—shelves operate in uniform thermal zones; however, up to four independent heating/cooling circuits allow segmented control across vertical zones.
What validation support is provided?
Tianfeng supplies FAT/SAT documentation templates, thermocouple mapping reports (per ISO 13485 Annex D), and vacuum leak test protocols compliant with ASTM E493.
Does the system support PAT (Process Analytical Technology) integration?
Yes—via Modbus TCP or OPC UA interfaces for third-party NIR, Raman, or capacitance sensors used in endpoint determination.
Is steam sterilization (SIP) available as an option?
Not standard; however, SIP-compatible gasket materials and drain port configurations can be implemented during customization.