Tianfeng TF-FZG-60 Industrial-Scale Freeze Dryer

Overview

The Tianfeng TF-FZG-60 is an industrial-scale shelf-type freeze dryer engineered for continuous, high-throughput lyophilization of heat-sensitive biological and food-grade materials—including algal biomass, instant soup concentrates, rose petal extracts, bird’s nest (edible swiftlet saliva), and other delicate natural products requiring structural integrity and bioactivity preservation. Operating on the principle of sublimation under deep vacuum, the system freezes material to −45 °C or lower, then applies controlled radiant heating to shelves while maintaining chamber pressure at ≤2.7 Pa. This enables direct phase transition of ice to vapor without passing through liquid phase—preserving cellular architecture, volatile compounds, enzymatic activity, and solute distribution. Unlike conventional hot-air or spray drying, freeze drying avoids thermal degradation, surface hardening, oxidation, and shrinkage. The TF-FZG-60 supports full-cycle automation from pre-freezing through primary and secondary drying, with precise shelf temperature control (−45 °C to +70 °C) and real-time vacuum monitoring.

Key Features

• 60 m² total shelf area across 16+1 stainless steel AISI 304 shelves (1300 mm wide × 2900 mm deep), optimized for uniform heat transfer and batch scalability
• High-capacity dual-stage refrigeration system achieving ≤−65 °C condenser temperature, enabling efficient water vapor capture at rates up to 1000 kg/24 h
• Robust vacuum architecture featuring customizable vacuum pump configurations (rotary vane, dry scroll, or oil-free screw options) and leak-tight chamber design rated to 2.7 Pa ultimate vacuum
• Modular electrical system integrating Omron programmable logic controller (PLC), Schneider contactors and circuit breakers, and a 15-inch industrial touchscreen HMI with recipe-based cycle management
• Comprehensive safety and redundancy: overtemperature protection, vacuum interlock, condenser overload alarm, emergency stop circuitry, and uninterruptible power backup for critical control functions
• Optional integration of pharmaceutical-grade silicone oil circulation system for enhanced shelf temperature uniformity and GMP-compliant thermal stability

Sample Compatibility & Compliance

The TF-FZG-60 accommodates diverse sample formats: bulk liquid solutions (up to 1000 L per cycle), tray-packed botanicals (e.g., rose petals, seaweed flakes), pre-filled vials or bottles (with optional stoppering module), and irregularly shaped food matrices. It meets fundamental requirements for Good Manufacturing Practice (GMP) environments when configured with audit-trail-capable software, validated temperature mapping, and calibrated pressure/temperature sensors traceable to NIST standards. While not inherently 21 CFR Part 11 compliant out-of-the-box, the control architecture supports validation-ready firmware upgrades and electronic signature modules upon customer specification. All mechanical components comply with ISO 8573-1 (compressed air purity) and EN 61000-6-2/6-4 (EMC immunity/emission). The system is certified to ISO 9001:2000 for design, manufacturing, and service processes.

Software & Data Management

The embedded HMI runs proprietary Tianfeng LyoControl™ software, supporting multi-step drying protocols with adjustable ramp rates, hold times, shelf setpoints, and vacuum modulation. Cycle data—including shelf temperature (±0.3 °C accuracy), chamber pressure (capacitance manometer, ±0.1 Pa resolution), condenser temperature, and elapsed time—is logged at user-defined intervals (1–60 s) and exportable via USB or Ethernet to CSV or XML. Optional cloud-enabled SCADA integration allows remote monitoring, alarm notification via email/SMS, and centralized fleet management. For regulated applications, optional 21 CFR Part 11 add-ons provide role-based access control, electronic signatures, and immutable audit trails meeting GLP/GMP documentation standards.

Applications

This system serves production-scale lyophilization in nutraceutical, functional food, herbal medicine, and cosmetic ingredient manufacturing. Typical use cases include: stabilization of marine-derived polysaccharides (e.g., alginate, carrageenan); production of instant rehydratable soup bases with preserved aroma volatiles; long-term storage of rose water distillates and anthocyanin-rich petal powders; processing of edible bird’s nest into shelf-stable, ready-to-reconstitute formats without protein denaturation; and pilot-to-production scale-up of probiotic cultures, enzyme preparations, and plant cell suspensions. Its large footprint and high condensation capacity make it suitable for contract manufacturing organizations (CMOs) serving FDA-registered dietary supplement facilities and EU-based food business operators complying with Regulation (EC) No 178/2002.

FAQ

What is the maximum batch volume supported by the TF-FZG-60?

The unit accommodates up to 1000 L of aqueous solution per cycle, assuming standard loading density and freeze consistency.
Can the system be validated for pharmaceutical use?

Yes—when equipped with IQ/OQ documentation packages, calibrated sensors, and optional 21 CFR Part 11 software, it supports GMP validation per ASTM E2500 and ISO 13485 frameworks.
Is custom engineering available for cleanroom integration?

Absolutely—Tianfeng provides site-specific layout planning, HEPA-filtered air handling interfaces, pass-through ports, and stainless steel cladding per ISO Class 5–8 cleanroom specifications.
What refrigeration technology does the condenser employ?

A dual-stage cascade refrigeration system using environmentally compliant refrigerants (R23/R404A or R507 alternatives), designed for continuous operation at ≤−65 °C under full ice load.
Does the system support automatic defrosting of the condenser?

Yes—programmable auto-defrost cycles are integrated, with condensate drainage management and temperature-controlled drain line tracing to prevent freezing.