Tianfeng TF-FZG-100 Industrial-Scale Food Freeze Dryer

Overview

The Tianfeng TF-FZG-100 is an industrial-scale vacuum freeze dryer engineered for continuous, high-throughput lyophilization of food products under strict hygienic and regulatory conditions. Based on the fundamental principle of sublimation—where ice transitions directly from solid to vapor under low-pressure, low-temperature conditions—the system removes water from heat-sensitive materials while preserving structural integrity, enzymatic activity, flavor volatiles, and nutritional composition. Unlike conventional thermal drying methods, freeze drying minimizes Maillard reactions, oxidation, and protein denaturation, making it indispensable for premium-value food categories including fruit powders, vegetable crisps, functional herbal extracts (e.g., goji berry), pet nutrition, ready-to-eat meals, instant coffee granules, and marine-derived ingredients. Designed for GMP-aligned production environments, the TF-FZG-100 integrates a monolithic chamber–cold trap architecture with front-loading shelf configuration, enabling batch processing of up to 98.68 m² of product surface area per cycle.

Key Features

• Monoblock construction with integrated drying chamber and rear-mounted cold trap—optimized for spatial efficiency, reduced piping losses, and simplified validation.
• GMP-compliant chamber fabricated from electropolished AISI 304 stainless steel (Ra ≤ 0.4 µm), fully welded with zero dead-leg design and CIP-compatible internal geometry.
• Dual-zone temperature-controlled shelves (−45 °C to +80 °C) with optional electric heating (24 kW × 4 zones) for precise primary and secondary drying control.
• High-capacity refrigeration system utilizing premium imported compressors and cascade cooling circuits, achieving ≤ −65 °C cold trap temperature within ≤ 90 minutes from ambient.
• Ultra-high vacuum performance supported by ULVAC (Edwards/AiFangke) high-efficiency vacuum pump assemblies, maintaining ≤ 2.7 Pa ultimate pressure across full load conditions.
• Modular shelf configuration: (15 + 1) × 2 shelves (SUS304 or anodized aluminum), 77 mm inter-shelf spacing, 608 × 54 × 1.8 cm per shelf—customizable for tray, vial, or bulk loading.
• Automated defrost system with steam or immersion-based cycles, validated for residue-free operation and rapid turnaround between batches.

Sample Compatibility & Compliance

The TF-FZG-100 accommodates heterogeneous food matrices—including whole berries, sliced vegetables, minced meat, fish fillets, paste-like herbal concentrates, and extruded pet kibble—without requiring pre-formulation or excipient addition. Its large-format chamber supports standard ISO 8573-1 Class 3 compressed air interfaces and optional nitrogen backfilling for oxygen-sensitive products. All wetted surfaces comply with FDA 21 CFR Part 110 (Current Good Manufacturing Practice in Manufacturing, Packing, or Holding Human Food) and EC No. 1935/2004 for food contact materials. The system’s mechanical and electrical architecture conforms to IEC 61000-6-2 (EMC immunity) and IEC 60204-1 (safety of machinery). Documentation packages include FAT/SAT protocols, IQ/OQ templates, and material traceability records aligned with ISO 9001:2015 and WHO TRS 986 Annex 6 requirements.

Software & Data Management

Control is managed via an Omron CP1E-N60DR-A PLC interfaced with a Windows-based IPC running proprietary lyoLOGIC™ SCADA software. The system provides dual-mode operation (automatic sequence-driven or manual step-by-step), multi-recipe storage (≥ 200 profiles), real-time parameter logging (shelf temp, chamber pressure, condenser temp, vacuum rate), and audit-trail-enabled user access control. Data export complies with ASTM E2500-13 (Guide for Specification, Design, and Verification of Pharmaceutical and Biopharmaceutical Manufacturing Systems) and supports CSV, PDF, and XML formats. Remote monitoring and diagnostics are enabled via encrypted Wi-Fi and optional LTE gateway, facilitating 21 CFR Part 11-compliant electronic signatures, role-based permissions, and time-stamped event logs.

Applications

• Commercial-scale dehydration of goji berries, blueberries, strawberries, and mango slices—retaining anthocyanins, vitamin C, and rehydration ratios > 95%.
• Stabilization of probiotic cultures and enzyme-rich botanical extracts (e.g., gingerol, curcuminoids) without thermal degradation.
• Production of lightweight, shelf-stable pet food formulations with preserved amino acid profiles and palatability.
• Lyophilization of sous-vide seafood portions, bone broth concentrates, and hydrolyzed collagen peptides for nutraceutical use.
• Processing of instant coffee agglomerates and matcha powder with minimized volatile loss and uniform particle morphology.

FAQ

Is the TF-FZG-100 suitable for pharmaceutical-grade manufacturing?
While designed primarily for food-grade production, the system meets foundational GMP infrastructure requirements; however, full compliance with EU Annex 1 or FDA Aseptic Guidance necessitates additional containment, HEPA filtration, and sterilization-in-place (SIP) integration—available as factory-installed options.
Can shelf temperature be independently controlled per zone?
Yes—each of the four shelf heating/cooling zones operates under independent PID regulation with ±0.5 °C accuracy and real-time deviation alarms.
What validation documentation is provided?
Standard delivery includes Factory Acceptance Test (FAT) report, material certification (EN 10204 3.1), electrical safety test record, and calibration certificates for all critical sensors (PT100, capacitance manometer, thermocouples).
Is remote troubleshooting supported?
Yes—via secure VNC-enabled IPC interface with prior customer authorization; all remote sessions are logged with user ID, timestamp, and action summary.
Does the system support clean-in-place (CIP) cycles?
The chamber and condenser are fully CIP-capable using programmable spray ball sequences, conductivity-based rinse endpoint detection, and temperature-controlled detergent circulation.