Tianfeng LYO-20 Industrial Freeze Dryer for Pharmaceutical and Herbal Extract Processing

Overview

The Tianfeng LYO-20 is an industrial-scale, shelf-type freeze dryer engineered for reproducible, cGMP-compliant lyophilization of heat-sensitive pharmaceuticals, herbal extracts (e.g., traditional Chinese medicine decoctions, bird’s nest hydrolysates), biologics, and functional food ingredients. It operates on the fundamental principle of sublimation: aqueous samples are first frozen solid at controlled low temperatures (≤ −55 °C), then subjected to high vacuum (≤ 2.7 Pa) while applying precise, gradient-controlled shelf heating. Under these conditions, ice transitions directly from solid to vapor without passing through the liquid phase—preserving native protein conformation, enzymatic activity, volatile terpenoids, polysaccharide integrity, and microbiological stability. Unlike conventional thermal drying methods (e.g., spray drying or hot-air drying), which induce denaturation, oxidation, and structural collapse above 0 °C, the LYO-20 maintains product morphology in a highly porous, sponge-like matrix—enabling rapid reconstitution with sterile water and full retention of pre-lyophilization bioactivity.

Key Features

• Stainless steel chamber constructed from AISI 304 with fully polished internal surfaces, radius-rounded corners, and stress-relieved welded joints to eliminate dead zones and ensure cleanability per ISO 14644-1 Class 8 requirements.
• 11+1 stainless steel shelves (1215 mm × 1520 mm each) with uniform temperature distribution across ±0.5 °C at −55 °C, enabled by low-viscosity silicone oil circulation and precision-engineered thermal mass.
• −75 °C dual-stage cascade condenser with 400 kg/24 h ice-trapping capacity and ≤0.1 Pa·m³/s system leak rate—validated per ASTM F2694 for long-term vacuum integrity.
• PLC-based control system with HMI touchscreen interface, supporting up to 99 programmable cycles, real-time data logging (timestamped, with audit trail), and compliance-ready electronic signatures per FDA 21 CFR Part 11.
• Integrated validation support: Full 3Q documentation package (IQ/OQ/PQ protocols and reports) available upon request; design conforms to EU Annex 1, USP , and ICH Q5C guidelines for biopharmaceutical lyophilization.
• Modular architecture allows optional CIP (Clean-in-Place) and SIP (Steam-in-Place) configurations for aseptic manufacturing environments.

Sample Compatibility & Compliance

The LYO-20 accommodates diverse sample formats including vials (Φ16 mm: up to 92,800 units; Φ22 mm: up to 47,400 units), trays, and bulk solutions (up to 400 L). It is routinely deployed for lyophilizing monoclonal antibodies, recombinant enzymes, probiotic suspensions, TCM concentrates (e.g., Panax ginseng saponins, Cordyceps sinensis polysaccharides), edible bird’s nest glycoproteins, and vaccine intermediates. All wetted parts meet USP Class VI biocompatibility standards. Manufacturing adheres strictly to ISO 9001:2015 quality management systems, and equipment design satisfies cGMP Annex 1 (2022) requirements for sterile process simulation and environmental monitoring integration.

Software & Data Management

The embedded PLC controller records all critical process parameters—including shelf temperature, chamber pressure, condenser temperature, and elapsed time—at user-defined intervals (minimum 1 s resolution). Data is stored locally on encrypted SD card and exportable via USB or Ethernet to LIMS or MES platforms in CSV or PDF format. Audit trails are immutable and include operator ID, timestamp, parameter modifications, and alarm events—fully compliant with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Optional GAMP 5-compliant software packages support automated report generation and electronic batch record (EBR) linkage.

Applications

• Pharmaceutical: Terminal sterilization-free stabilization of injectables (lyophilized powders for reconstitution), mRNA-LNP formulations, and peptide APIs.
• Traditional Medicine: Preservation of thermolabile markers (e.g., notoginsenosides, schisandrin B) in herbal extracts without solvent residue or Maillard degradation.
• Functional Foods: High-value nutraceuticals such as collagen peptides, lactoferrin, and fermented soybean isolates requiring ≥95% activity retention.
• Biobanking: Long-term cryo-storage of primary cell lines, stem cells, and tissue grafts with minimal osmotic shock.
• R&D Scale-Up: Seamless transition from lab-scale (e.g., LYO-5) to production batches—same thermal profiles, same vacuum dynamics, same validation logic.

FAQ

What regulatory standards does the LYO-20 comply with?

It is designed and documented to meet cGMP (21 CFR Parts 210/211), EU GMP Annex 1, ISO 9001:2015, and supports IQ/OQ/PQ execution per ASTM E2500 and ISPE Baseline Guide Volume 5.
Can the system be validated for aseptic processing?

Yes—optional SIP (121 °C saturated steam, 30 min dwell) and HEPA-filtered chamber air supply modules enable Grade A/B environment compatibility.
Is remote monitoring supported?

Standard Ethernet port enables SCADA integration; optional cloud-based telemetry (with TLS 1.2 encryption) allows real-time status alerts and historical trend review via secure web portal.
What maintenance intervals are recommended?

Vacuum pump oil change every 2,000 operating hours; condenser coil inspection quarterly; shelf temperature calibration annually using NIST-traceable PT100 probes.
Does Tianfeng provide installation qualification support?

Yes—factory acceptance testing (FAT) and site acceptance testing (SAT) services are included, with certified engineers performing mechanical completion checks, utility verification, and initial cycle runs under witness.