Tianfeng TF-FZG-30 Industrial-Scale Freeze Dryer

Overview

The Tianfeng TF-FZG-30 is an industrial-scale, shelf-type freeze dryer engineered for continuous batch processing of heat-sensitive food and botanical materials—including durian, strawberries, vegetables, meat, seafood, herbal extracts, and instant beverages. It operates on the fundamental principle of lyophilization: sublimation of ice under deep vacuum and low-temperature conditions, preserving structural integrity, enzymatic activity, volatile compounds, and nutritional profiles without thermal degradation. Unlike laboratory-scale units, the TF-FZG-30 integrates a unified chamber–condenser architecture (front chamber / rear condenser), enabling efficient vapor migration and high-capacity ice trapping. Its 30 m² drying area supports approximate throughput of 300 kg per batch, making it suitable for pilot-line validation and commercial-scale production in GMP-aligned food manufacturing environments.

Key Features

• Integrated chamber–condenser design with cylindrical 304 stainless steel chamber body, mirror-finished interior (Ra ≤ 0.4 µm), and sanitary welds compliant with ASME BPE surface finish standards.
• Double-sided shelf configuration: (13+1) × 2 shelves with independent temperature compensation plates—enabling precise thermal uniformity across ±1.5 °C at −45 °C to +80 °C operating range.
• High-efficiency condenser using clean-grade stainless steel coil tubing, rated for 600 kg/24 h ice capture capacity and sustained operation at ≤−45 °C (with optional −65 °C to −70 °C deep-cooling mode).
• Robust refrigeration system built with premium imported compressors, high-efficiency heat exchangers, and optimized cascade circuitry—achieving rapid cooldown (<120 min from ambient to −45 °C) and stable long-term performance.
• Omron CJ2M-series PLC control platform with integrated HMI touchscreen interface, supporting dual-mode operation (automatic recipe-driven or manual step-by-step), real-time parameter logging, and multi-user access control.
• TFD-5000 process management software with audit-trail functionality, electronic signature support, and exportable CSV/Excel data files—designed to meet basic requirements for FDA 21 CFR Part 11 compliance in non-pharmaceutical food applications.
• Hygienic defrost system offering both steam-assisted and immersion-based cycles, ensuring complete ice removal and residue-free condenser surfaces between batches.

Sample Compatibility & Compliance

The TF-FZG-30 accommodates diverse sample formats including bulk trays (standard 2140 × 541 mm), stacked pans, and custom-fit containers up to 180 mm height per shelf. Its shelf spacing of 77 mm allows flexibility for irregularly shaped produce (e.g., whole durian segments or sliced strawberries). All wetted surfaces are constructed from AISI 304 stainless steel, passivated per ASTM A967 and electropolished where applicable. The unit complies with ISO 22000 food safety management principles and incorporates design elements aligned with EU Machinery Directive 2006/42/EC and CE-marking prerequisites. While not certified for pharmaceutical use out-of-the-box, its construction and documentation framework supports qualification (IQ/OQ/PQ) for food-grade GMP environments per China’s GB 14881 and international Codex Alimentarius guidelines.

Software & Data Management

The embedded TFD-5000 software provides full lifecycle process control—from pre-freezing ramp rates and primary drying slope monitoring to secondary drying endpoint detection via pressure rise test (PRT) or product temperature stabilization logic. Users may store unlimited drying protocols, assign version-controlled revisions, and enable time-stamped event logging for all operator actions, alarm triggers, and setpoint changes. Data export supports timestamped .csv files compatible with LIMS integration and internal QA review workflows. Optional Ethernet/IP or Modbus TCP interfaces allow remote monitoring via SCADA systems. Firmware updates are delivered free-of-charge via secure USB transfer; no cloud dependency or subscription model applies.

Applications

This system is routinely deployed for: stabilization of tropical fruit powders (e.g., durian puree, strawberry pulp); preservation of functional ingredients (goji berries, ginseng slices, chlorella); production of rehydratable ready-to-eat meals; dehydration of marine collagen peptides; and preparation of shelf-stable nutraceutical intermediates. Its thermal stability and vacuum repeatability make it appropriate for comparative studies evaluating moisture content (per AOAC 950.46), residual solvent levels (via headspace GC), and glass transition temperature (Tg’) determination using inline thermocouples.

FAQ

Is the TF-FZG-30 suitable for pharmaceutical-grade lyophilization?
No—it is designed and validated for food, nutraceutical, and botanical applications. For sterile drug product manufacturing, additional containment, HEPA filtration, and full 21 CFR Part 11 validation packages would be required.
Can shelf temperature be controlled independently per layer?
No—shelves operate in grouped zones (front/rear banks), but each zone maintains ±1.5 °C uniformity via PID-controlled silicone oil circulation.
What utilities are mandatory for installation?
Three-phase 380 V / 50 Hz power (125 kW), chilled water supply (40 m³/hr @ ≤25 °C), compressed air (60 L/min @ 4–8 bar), and dedicated floor drainage for defrost water discharge.
Does the system include validation documentation?
Yes—Factory Acceptance Test (FAT) reports, material certifications (3.1 EN 10204), and electrical schematics are provided. Site-specific IQ/OQ protocol templates are available upon request.
Is remote service support available?
Yes—via secure TeamViewer-enabled diagnostics, with optional annual maintenance contracts covering preventive servicing, calibration verification, and spare parts inventory management.