English Product Name

Overview

The Tianfeng TF-FZG-300 is an industrial-scale, GMP-compliant freeze dryer engineered for continuous high-volume lyophilization of heat-sensitive food matrices—including lactic acid bacteria cultures, blueberries, seafood, pet nutrition products, botanical extracts, and functional health ingredients. Operating on the fundamental principles of sublimation under deep vacuum and controlled thermal input, this system integrates a unified chamber–condenser architecture with front-chamber/rear-trap layout to maximize spatial efficiency and process reproducibility. With a validated shelf area of 296 m² and a 3-ton batch capacity per cycle, the TF-FZG-300 bridges laboratory process development and commercial-scale manufacturing—enabling consistent retention of microbial viability, enzymatic activity, volatile aroma compounds, and structural integrity in delicate biological and food-grade materials. Its design adheres to ISO 9001:2015 quality management standards and incorporates engineering features aligned with FDA-recommended practices for food processing equipment (21 CFR Part 110), including hygienic surface finishes and traceable operational parameters.

Key Features

• GMP-aligned construction: cylindrical chamber and shelves fabricated from electropolished AISI 304 stainless steel with Ra ≤ 0.4 µm surface finish; zero-stagnation geometry and fully weld-sealed joints to eliminate microbiological harborage zones.
• Integrated cold trap and drying chamber: compact rear-mounted condenser with high-efficiency stainless steel coil assembly; optional monolithic or modular configuration to support cleaning-in-place (CIP) validation requirements.
• Thermally optimized shelf system: dual-zone (15+1) × 2 × 2 configuration with customizable shelf material—either extruded aluminum (enhanced thermal conductivity, ±0.5 °C uniformity) or mirror-finished 304 stainless steel (superior cleanability, compliant with EU GMP Annex 1).
• High-capacity refrigeration: multi-stage cascade system using premium imported compressors (e.g., Bitzer, Danfoss), achieving ≤ −65 °C cold trap temperature within ≤ 120 minutes from ambient.
• Vacuum performance: primary vacuum train built around ULVAC (formerly Anelva) high-vacuum pumps, delivering ≤ 2.7 Pa ultimate pressure with integrated oil mist filtration and real-time pressure profiling.
• Intelligent control architecture: Omron CJ2M PLC platform with redundant data logging, recipe-based cycle sequencing, step-jump functionality during active drying, and audit-trail-enabled parameter modification—all accessible via touchscreen HMI or remote IPC interface with encrypted Wi-Fi connectivity.

Sample Compatibility & Compliance

The TF-FZG-300 accommodates heterogeneous load geometries—from bulk trays of frozen blueberry puree and probiotic suspension vials to stacked stainless-steel trolleys carrying pre-frozen pet treats or dried seaweed sheets. Its wide shelf temperature range (−45 °C to +80 °C) supports both primary drying (ice sublimation) and secondary drying (adsorbed water desorption) across diverse formulations. All wetted surfaces meet EC 1935/2004 food contact material regulations. The system’s mechanical and software architecture supports qualification documentation (IQ/OQ/PQ), including validation of shelf temperature uniformity (ASTM E2297), vacuum leak rate (ISO 20484), and condensate capture efficiency (USP ). It is routinely deployed in facilities operating under HACCP, BRCGS Food Safety, and IFS standards.

Software & Data Management

The embedded control software provides full-cycle automation with ≥100 configurable recipes, each supporting up to 20 drying stages with independent setpoints for shelf temperature, chamber pressure, and condenser temperature. All operational events—including manual interventions, alarm triggers, and parameter changes—are time-stamped and stored with user ID attribution, satisfying FDA 21 CFR Part 11 electronic record/electronic signature (ER/ES) requirements when paired with appropriate access controls and backup protocols. Data export is supported in CSV and PDF formats; optional integration with MES/SCADA systems via OPC UA or Modbus TCP enables centralized production monitoring and statistical process control (SPC) analysis.

Applications

• Stabilization of live probiotic cultures (e.g., Lactobacillus spp., Bifidobacterium spp.) without cryoprotectant overload or thermal denaturation.
• Bulk freeze-drying of anthocyanin-rich fruits (blueberries, blackcurrants) preserving color stability, antioxidant capacity (ORAC), and rehydration kinetics.
• Production of shelf-stable pet nutrition snacks with retained digestibility and palatability markers.
• Processing of marine collagen peptides, chitosan, and algal biomass under low-oxygen, low-temperature conditions to prevent Maillard browning and lipid oxidation.
• Lyophilization of herbal decoctions and standardized botanical extracts (e.g., ginseng, goji berry) for nutraceutical capsule fill.

FAQ

Is the TF-FZG-300 suitable for aseptic processing?

No—this model is designed for non-sterile food and supplement manufacturing. For sterile pharmaceutical applications, additional isolator integration and HEPA-filtered air handling would be required.

Can shelf temperature profiles be ramped dynamically during primary drying?

Yes—programmable ramp rates (°C/min) and hold durations are fully adjustable per stage, enabling optimization for fragile biologics or high-sugar matrices.

What maintenance intervals are recommended for the vacuum system?

Oil-lubricated pumps require oil replacement every 2000 operating hours; dry scroll pumps (optional upgrade) extend service life to ≥8000 hours with periodic filter inspection.

Does the system support automated defrosting?

Yes—steam-assisted or hot-gas defrost cycles are programmable, with integrated condensate drainage and post-defrost chamber purge sequences.

Are validation documents provided with delivery?

Standard delivery includes FAT (Factory Acceptance Test) report and mechanical completion dossier. IQ/OQ protocol templates and on-site PQ execution services are available as optional engineering packages.