Tianfeng TF-FZG-15 Square Meter Industrial Freeze Dryer

Overview

The Tianfeng TF-FZG-15 is a production-grade, shelf-type industrial freeze dryer engineered for high-throughput, GMP-aligned lyophilization of heat-sensitive food matrices—including goji berries, hawthorn fruit, vegetables, seafood, pet food, herbal extracts, and functional food powders. It operates on the fundamental principle of sublimation: frozen water is removed directly from the solid phase to vapor under controlled low-pressure (≤10 Pa) and low-temperature (condenser ≤−35 °C) conditions, preserving structural integrity, enzymatic activity, volatile compounds, and nutritional profiles far more effectively than conventional thermal drying methods. With a validated shelf area of 15 m² and a condenser capacity of 200 kg/24h, the system supports batch processing of up to ~1,200–1,800 kg of pre-frozen product per cycle—depending on initial moisture content and product geometry—making it suitable for pilot-to-production scale operations in food manufacturing, nutraceutical R&D, and contract processing facilities.

Key Features

• GMP-compliant chamber and shelf construction: All wetted surfaces fabricated from mirror-polished AISI 304 stainless steel, meeting surface roughness (Ra ≤ 0.8 µm) and weld quality standards per ASME BPE-2022 for food-grade equipment.
• Integrated chamber–cold trap design with front-loading configuration and dual observation windows equipped with LED illumination—enabling real-time visual monitoring without vacuum break.
• Modular shelf system: Configurable with either extruded aluminum shelves (optimized for rapid, uniform heat transfer) or fully welded 304 stainless steel shelves (designed for maximum cleanability and corrosion resistance).
• Cold trap constructed from electropolished stainless steel coil tubing; available in monolithic or segmented configurations to accommodate maintenance access or cleaning-in-place (CIP) requirements.
• High-efficiency refrigeration circuit utilizing premium imported compressors, oil separators, and microchannel condensers—achieving shelf cooling to −30 °C within ≤90 minutes and stable temperature control (±1 °C shelf-to-shelf uniformity).
• Vacuum system built around ULVAC (Japan) dry scroll or hybrid turbomolecular pump assemblies, delivering repeatable ultimate vacuum ≤10 Pa with integrated vacuum gauging and leak-rate diagnostics.
• Omron CJ2M-series PLC controller with HMI touchscreen interface, supporting ≥100 user-defined drying protocols, real-time parameter logging (shelf temp, chamber pressure, condenser temp, vacuum rate), and audit-trail-capable data export (CSV/USB).

Sample Compatibility & Compliance

The TF-FZG-15 accommodates diverse sample formats including bulk trays (standard 600 × 400 mm), stacked stainless steel pans, and custom rack-mounted containers. Its wide shelf temperature range (−30 °C to +80 °C) enables primary drying of frozen fruits (e.g., goji, hawthorn) at −20 °C to −10 °C and secondary drying at 25–40 °C under dynamic vacuum ramping. The system complies with ISO 22000:2018 (Food Safety Management), meets mechanical safety requirements per EN 61000-6-2/6-4 (EMC), and conforms to pressure equipment directives (PED 2014/68/EU) for vacuum vessels. Optional IQ/OQ documentation packages are available to support FDA-regulated facilities operating under 21 CFR Part 11-compliant data integrity frameworks.

Software & Data Management

The embedded Omron Sysmac platform provides full-cycle automation with recipe-based control logic, including automatic pressure rise tests (PRT), vacuum-controlled ramping, and adaptive shelf temperature modulation based on product thermocouple feedback (optional). All process parameters—including time-stamped shelf temperatures, chamber pressure traces, condenser load curves, and alarm history—are logged at 1-second intervals and exportable via USB or Ethernet to secure network storage. The system supports electronic signature functionality, user-level access control (admin/operator/viewer), and configurable audit trails compliant with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

This freeze dryer is routinely deployed for: stabilization of anthocyanin-rich hawthorn (Crataegus spp.) extracts; retention of polysaccharide bioactivity in Lycium barbarum (goji) pulp; production of instant vegetable and fruit powder blends with >95% rehydration efficiency; low-temperature dehydration of enzymatically active fish hydrolysates; and shelf-stable pet treat formulations meeting AAFCO nutritional guidelines. It also serves as a scalable validation platform for lyophilization process development aligned with ICH Q5C and USP guidance on sterile and non-sterile freeze-drying.

FAQ

Is the TF-FZG-15 suitable for continuous production or only batch operation?
It is a batch-mode system designed for repeated, reproducible cycles—not continuous feed—but its 15 m² shelf area and rapid cooldown enable up to three full cycles per 24-hour period under optimized loading conditions.
Can the system be validated for pharmaceutical use?
While primarily engineered for food and nutraceutical applications, the GMP-aligned construction, data integrity features, and optional IQ/OQ documentation allow adaptation to early-phase clinical trial material production under appropriate risk assessment and qualification protocols.
What utilities are required for installation?
The unit requires chilled water supply (≤25 °C, 10 T/h), three-phase 380 V / 50 Hz power (50 kW), compressed air (0.6 MPa, oil-free), and a dedicated exhaust duct for defrost water vapor removal.
Does Tianfeng provide remote support and firmware updates?
Yes—via secure VPN-enabled remote diagnostics, with biannual firmware releases incorporating enhanced PID tuning algorithms, expanded alarm logic, and improved CSV metadata tagging for LIMS integration.
Are spare parts and service contracts available internationally?
Tianfeng maintains regional service hubs in Germany, Singapore, and Mexico; all critical components—including PLC modules, vacuum sensors, and refrigeration valves—are stocked globally with ≤72-hour dispatch lead time under Gold-tier support agreements.