Tianfeng TF-SFD-2E Industrial-Scale Freeze Dryer

Overview

The Tianfeng TF-SFD-2E is an industrial-scale, shelf-type freeze dryer engineered for reproducible, GMP-compliant lyophilization of heat-sensitive biopharmaceuticals, diagnostic reagents, and high-value natural products—including bone tissue, raspberry puree, and other biological matrices requiring structural integrity preservation. Operating on the fundamental principles of sublimation under deep vacuum and controlled thermal input, the system removes water from frozen samples via primary drying (ice sublimation) followed by secondary drying (desorption of bound moisture), all while maintaining product stability, morphology, and bioactivity. Its 2 m² shelf area supports batch processing of up to 10,000 vials (Φ16 mm) or 5,000 vials (Φ22 mm), with a maximum load capacity of 40 L of aqueous solution—making it suitable for pilot-scale manufacturing and early-phase commercial production in regulated environments.

Key Features

• Robust AISI 304 stainless steel chamber with fully polished, radius-rounded internal geometry to eliminate dead zones and ensure cleanability per cGMP requirements.
• Five temperature-controlled shelves (4 active + 1 bottom shelf) fabricated via uniform heating and stress-relieved welding, delivering exceptional flatness (<±0.1 mm/m) and thermal uniformity across the entire surface.
• Low-viscosity silicone oil as heat transfer medium enables stable, responsive temperature control from −55 °C to +80 °C—critical for precise annealing, primary drying ramping, and desorption profiling.
• High-efficiency condenser operating at −75 °C with 40 kg/24 h ice-trapping capacity, coupled with a leak-tight vacuum system achieving ≤1 Pa ultimate pressure and verified system integrity (leak rate ≤0.025 Pa·m³/s).
• Omron PLC-based automation platform with intuitive HMI interface; stores and executes multi-step lyophilization protocols with real-time logging of shelf temperature, chamber pressure, condenser temperature, and time-stamped process events.
• Full compliance with ISO 9001:2015 quality management systems and design alignment with EU Annex 1, FDA 21 CFR Part 211, and ICH Q5C guidelines for sterile biologics processing.

Sample Compatibility & Compliance

The TF-SFD-2E accommodates diverse sample formats: bulk solutions (up to 40 L), stoppered vials (Φ16 mm and Φ22 mm), serum bottles, and irregular biological specimens such as decalcified bone segments or whole-fruit tissue slices. Its chamber geometry and shelf spacing (100 mm) allow flexible loading configurations without compromising airflow or heat transfer efficiency. All wetted surfaces meet USP Class VI and ASTM F899 standards for biomedical-grade stainless steel. The system supports full validation documentation packages—including Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ)—and is pre-configured for electronic audit trails compliant with FDA 21 CFR Part 11 requirements.

Software & Data Management

The integrated Omron CJ2M PLC controller records all critical process parameters at user-defined intervals (minimum 1-second resolution) and archives data in encrypted CSV and PDF formats. Trend graphs for shelf temperature, chamber pressure, and condenser load are auto-generated per batch. Data export supports LIMS integration via Ethernet/IP or Modbus TCP. Optional SCADA-level supervision allows remote monitoring and alarm notification via email/SMS. Raw data files include digital signatures and immutable timestamps to satisfy GLP/GMP traceability mandates. Backup storage is retained locally on redundant SD cards and externally via network-attached storage (NAS) with configurable retention policies.

Applications

• Pharmaceutical development: Lyophilization of monoclonal antibodies, vaccines, and enzyme formulations requiring residual moisture <1.5% w/w.
• Tissue engineering: Stabilization of collagen scaffolds, demineralized bone matrix (DBM), and cartilage grafts without collapse or denaturation.
• Nutraceutical manufacturing: Preservation of anthocyanin-rich raspberry pulp while retaining >92% polyphenol content and rehydration kinetics comparable to fresh material.
• Diagnostics: Stabilization of ELISA reagents, PCR master mixes, and lateral flow assay components for extended ambient storage.
• Academic & contract research: Reproducible scale-up from lab-scale (0.1 m²) to production-ready (2 m²) lyophilization cycles under identical thermodynamic boundary conditions.

FAQ

Does the TF-SFD-2E support automatic stoppering?

No—it is configured as a standard shelf-type freeze dryer without in-chamber stoppering capability. Integration of a hydraulic stoppering unit is available as a factory-installed option upon request.
Can the system be validated for FDA-submitted BLA processes?

Yes. The TF-SFD-2E is supplied with full 3Q documentation templates, calibration certificates for all critical sensors (PT100, capacitance manometer, thermocouples), and a traceable metrology chain aligned with NIST standards.
What utilities are required for installation?

Three-phase 380 V ±10%, 50 Hz power supply; chilled water loop (7–12 °C, ≥15 m³/h); compressed air (0.6 MPa, oil-free); and dedicated exhaust ducting for solvent vapor removal during secondary drying.
Is remote troubleshooting supported?

Yes. The PLC includes embedded web server functionality enabling secure remote diagnostics via HTTPS with role-based access control and session logging.
What is the typical lead time for delivery after order confirmation?

Standard delivery is 5–7 working days from order finalization, assuming no custom configuration or validation add-ons. Custom-engineered variants require 8–12 weeks for mechanical completion and FAT execution.