Batch Vacuum Freeze Dryer

Industrial Batch Vacuum Freeze Dryers

 

Engineered for primary drying (sublimation) and secondary drying (desorption), our industrial batch vacuum freeze dryers deliver the strict environmental isolation, precise shelf temperature profiling, and repeatable lot traceability demanded by regulated pharmaceutical, biological, and advanced food processing facilities. Designed for integration within cGMP cleanroom boundaries, these systems ensure maximum product yield, sterility assurance, and international regulatory compliance.

 

 
 

 

Quick Selection Overview

Primary Applications: Commercial pharmaceuticals, vaccines, active pharmaceutical ingredients (APIs), biologicals, and specialty food/nutraceutical ingredients.


Shelf Temperature Range: -55°C to +70°C with a tight control precision of ±1°C.


Ultimate Vacuum Pressure: < 1 Pa in a clean, dry, and empty chamber.


Condenser Performance: Lowest temperature configurations ranging from -50°C to -85°C based on multi-compressor cascade setups.


Control & Compliance: Siemens S7-1500 PLC paired with WinCC SCADA, featuring 21 CFR Part 11 compliant audit trails and redundant PT100 sensors.

 

Product Range & Technical Configurations

 

Series

Shelf Area

Condenser Capacity

Key Design & Application Features

BFD-Series (Pilot)

0.5 m2 - 5 m2

10 kg - 50 kg / 24h

Mobile frame, interchangeable trays, local PLC/HMI data logging; ideal for R&D, clinical trials, and small-batch APIs.

BFD-Series (Production)

10 m2 - 50 m2

100 kg - 500 kg / 24h

cGMP compliant, 316L internal finish, hydraulic stoppering; suited for commercial vaccines, injectables, and sterile vials.

BFD-Series (Food Bulk)

20 m2 - 100 m2

200 kg - 1000 kg / 24h

Heavy-duty product rails, rapid hot-gas defrost, multi-compressor cascade; built for bulk nutraceuticals and food ingredients.

 

Core Technical Specifications

Chamber & Shelf Materials

Product contact surfaces are constructed from AISI 316L stainless steel, mechanically and electro-polished to Ra <= 0.4 um. Chamber bodies and non-contact internal frames utilize robust AISI 304 stainless steel.


Temperature Uniformity

±1.0°C across all active shelf surfaces during steady-state sublimation.

Vacuum Performance

Down time from atmospheric pressure to 10 Pa occurs within <= 15 minutes.

Refrigeration Architecture

Semi-hermetic screw or reciprocating compressors (Bitzer/Bock) utilizing ozone-friendly HFC/HFO refrigerants (R449A, R507, R23) with plate heat exchangers and electronic expansion valves.

Pressure Vessel Compliance

Built strictly to ASME Section VIII (U Stamp) or PED 2014/68/EU standards according to regional destination requirements.

 

Application Boundaries & Processing Suitability

 
 
01
 

Pharmaceuticals & Biologicals

Bulk APIs, antibiotics, live-attenuated vaccines, blood plasma fractions, and diagnostic reagents requiring strict residual moisture limits (< 1.0%).

 
02
 

Biotech & Injectables

Vials, ampoules, and syringes requiring precise hydraulic or pneumatic bottom-ram stoppering under vacuum or inert gas (N2) backfill.

 
03
 

Specialty Food & Nutraceuticals

Probiotic biomass, active enzymes, botanical extracts, and high-value pet nutrition that require original cellular structure and nutrient retention.

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Selection Guidelines for Procurement

Calculate Ice Condensing Load

Determine the total moisture weight per batch (W) and divide by the targeted primary drying duration (T). Ensure the selected condenser capacity exceeds the peak sublimation rate by at least 25%.

 

Determine Shelf Area

Calculate based on container fill depth (liquid fill height of 10 mm to 12 mm for vials, or bulk loading density of 15 kg/m2 to 25 kg/m2).

 

Verify Site Boundary Conditions

Confirm cleanroom wall integration (pass-through configuration) or specific environmental containment levels prior to placement.

 

 

Customization & Engineering Options
 

Sterilization & Cleaning: CIP spray assemblies with rotary jet heads and pure steam SIP distribution headers equipped with pneumatic diaphragm valves and temperature mapping probes.

 

Isolation Valves: Pneumatic high-vacuum butterfly or mushroom valves positioned between the drying chamber and internal condenser trap.

 

Loading Solutions: Manual loading trolleys, semi-automatic push-pull tray transfer mechanisms, or fully automated loading/unloading systems (ALUS).

 

Quality Control, Shipping & Support Protocols

 
 

Manufacturing Verification: Complete material traceability with EN 10204 3.1 mill test certificates, 100% radiographic (RT) or dye penetrant (PT) weld inspections, and factory acceptance testing (FAT) featuring 72-hour continuous thermal mapping and helium mass spectrometer leak testing (< 1 x 10^-6 Pa*m3/s).

 
 

Packaging & Logistics: Nitrogen-purged vacuum lines, desiccant packs, IP65-rated moisture barrier foil wrapping, and ISPM 15-compliant fumigated export wooden crating with reinforced structural steel skids.

 
 

After-Sales Service: On-site validation support (FAT, SAT, IQ, OQ), critical spare parts inventory readiness, and secure VPN-enabled remote diagnostics embedded in the PLC switchboard.

 

 

Frequently Asked Questions

 

 

Q: What is the typical lead time for a custom production-scale batch freeze dryer?

A: Standard delivery ranges from 16 to 24 weeks following engineering drawing approval and deposit receipt, depending on third-party pressure vessel certification requirements like the ASME U-stamp.

Q: How is product eutectic collapse prevented during primary drying?

A: The Siemens PLC system executes automated shelf temperature step-ramps while maintaining precise chamber pressure via proportional control valves, keeping the product temperature below its critical collapse point (Tc).

Q: Can the control system interface with existing plant SCADA or MES software?

A: Yes, the control architecture supports industrial communication protocols including OPC UA, Modbus TCP, and Profinet for direct integration into facility supervisory networks.

Q: What utility connections must be provisioned at the installation site?

A: Required utilities typically include chilled water or cooling tower water, compressed dry air (CDA) at 6 to 8 bar, electrical supply (400V/3Ph/50Hz or 480V/3Ph/60Hz), and clean steam for SIP configurations. A comprehensive utility matrix is provided during contract kickoff.

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