Laboratory Vacuum Freeze Dryer
Laboratory Vacuum Freeze Dryer
Laboratory vacuum freeze dryers perform controlled sublimation to dehydrate heat-sensitive aqueous or solvent-based samples, preserving molecular conformation, enzymatic activity, and structural morphology for indefinite ambient storage and rapid reconstitution.
Available Configurations: Benchtop Series for routine laboratories, Pilot-Scale Console Series for R&D and small-batch production, and Manifold & Universal Series for multi-user environments.
Condenser Temperatures: Range from <= -50 degrees C (Benchtop) and <= -80 degrees C (Console) down to <= -105 degrees C (Pilot).
Ultimate Vacuum Performance: Deep vacuum levels ranging from < 5 Pa (0.05 mbar) down to < 0.1 Pa (0.001 mbar).
Ice Condenser Capacities: Ranging from 4 kg, 8 kg, to 12 kg per 24 hours.
Primary Industries: Pharmaceuticals, biologics, proteomics, genomics, material science, and food chemistry.
Product Range & Configuration Series
Benchtop Series (Compact & Routine)
Designed for standard academic and diagnostic laboratories with condenser temperatures at -50 degrees C or -80 degrees C. Accommodates manifold flasks, split acrylic chambers, or small stoppering shelves.
Pilot-Scale Console Series (R&D to Small Batch)
Floor-standing units featuring integrated refrigeration compressors and hydraulic stoppering mechanisms. Built specifically for scale-up studies, peptide formulation, and clinical trial batch production.
Manifold & Universal Series (Multi-User Labs)
Features valve-controlled external flask ports combined with internal drying chambers to safely accommodate varied vessel types concurrently.
Technical Specifications
|
Model Parameter |
Benchtop-50 Series |
Console-80 Series |
Pilot-105 Series |
|
Condenser Temperature |
<= -50 degrees C |
<= -80 degrees C (Cascade system) |
<= -105 degrees C (Dual-stage auto-cascade) |
|
Ultimate Vacuum |
< 5 Pa (0.05 mbar) |
< 1 Pa (0.01 mbar) |
< 0.1 Pa (0.001 mbar) |
|
Ice Condenser Capacity |
4 kg / 24 h |
8 kg / 24 h |
12 kg / 24 h |
|
Shelf Temperature Range |
-50 degrees C to +65 degrees C |
-55 degrees C to +70 degrees C |
-60 degrees C to +70 degrees C |
|
Shelf Temperature Uniformity |
+/- 1.0 degrees C |
+/- 0.5 degrees C |
+/- 0.5 degrees C |
|
Standard Chamber Material |
304 Stainless Steel |
316L Stainless Steel (Electro-polished) |
316L Stainless Steel (Sanitary finish) |
|
Defrost Method |
Electric heating / Hot gas bypass |
Hot gas bypass defrost |
Rapid hot gas bypass defrost |
Working Principle
The thermodynamic freeze-drying cycle operates across three strict operational phases:
Pre-freezing Phase
Samples are loaded onto temperature-controlled shelves and cooled down below their eutectic or collapse point (typically -40 degrees C to -70 degrees C) to ensure complete solidification of free and bound water.
Primary Drying (Sublimation):
The vacuum pump evacuates the chamber to deep vacuum levels (< 5 Pa), while shelves apply controlled radiant heat. Ice crystals sublime directly into vapor and migrate toward ultra-cold condenser coils to refreeze.
Secondary Drying (Desorption)
Chamber pressure decreases further while shelf temperature rises gradually up to +40 degrees C or higher, removing bound moisture to leave residual moisture content below 1%.
Core Applications
Pharmaceuticals & Biologics: Stabilization of vaccines, monoclonal antibodies, antibiotics, and diagnostic reagents.
Proteomics & Genomics: Preservation of nucleic acids, proteins, and cellular lysates for advanced structural analysis.
Material Science: Synthesis of porous scaffolds, aerogels, and ceramic precursors.
Food & Agricultural Chemistry: Extraction and storage of heat-sensitive botanical isolates, enzymes, and reference standards.
Buyer Selection Guide
Condenser Temperature Selection: Choose -50 degrees C for standard aqueous solutions, simple buffers, and bacterial suspensions. Choose -80 degrees C or -105 degrees C for samples containing low eutectic solvents, organic co-solvents (DMSO, ethanol traces), or complex biological formulations prone to micro-collapse.
Ice Condenser Capacity Sizing: Ensure the 24-hour ice-holding rating exceeds your total batch liquid volume by at least 30% to prevent condenser overload during peak sublimation.
Chamber & Stoppering Mechanism: Opt for flask manifolds when processing multiple independent round-bottom flasks, or select shelves with pneumatic/hydraulic stoppering if sealing serum vials under vacuum or an inert gas blanket.
Customization Options
Electrical Configuration
Tailored voltage inputs (208–240V / 60Hz single-phase, 380V / 50Hz three-phase) to match regional laboratory standards.
Refrigeration Architecture
CFC-free, eco-friendly mixed refrigerants fully compliant with EPA and international environmental regulations.
Data Logging & SCADA Integration
Upgraded PLC controllers featuring Ethernet/USB data export, 21 CFR Part 11 compliant audit trails, and remote monitoring interfaces.
Manifold Ports
Customizable port counts and standard taper (NS) sizes for rubber valve adapters or direct flask connections.
Quality Control & Manufacturing Verification
Pressure Decay Testing: Every vacuum chamber undergoes rigorous helium mass spectrometer leak testing to verify seal integrity under deep vacuum.
Electrical Safety Screening: Dielectric withstand testing and grounding continuity validation are strictly executed on every unit prior to factory release.
Refrigeration Pressure Testing: Sealed refrigerant loops are pressurized with nitrogen gas and monitored for 48 hours to eliminate micro-leak risks.
Calibration Traceability: Temperature and vacuum sensors are calibrated using NIST-traceable reference standards, with calibration certificates included in the documentation package.
Packaging & International Shipping
Export-Grade Packaging
Sealed inside heavy-duty fumigation-free plywood crates lined with moisture-barrier vacuum-sealed foil and high-density shock-absorbing EPE foam.
Component Separation
Vacuum pumps, acrylic accessories, and glass flasks are independently boxed and secured to prevent transit damage.
Included Documentation
Comprehensive English user manuals, electrical schematics, piping and instrumentation diagrams (P&ID), factory test reports, and customs declaration paperwork.
Technical Support & After-Sales Service
Installation & Commissioning
Detailed step-by-step video installation guides and remote engineering support via video link for IQ/OQ protocol execution.
Warranty Coverage
12-month standard manufacturer warranty covering core mechanical, electrical, and refrigeration components (compressors and vacuum pumps).
Spare Parts Availability
Critical wear items—including vacuum pump oil, replacement exhaust filters, door gaskets, and sealing rings—are stocked locally for immediate dispatch.
Frequently Asked Questions
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