The Continuous Industrial Freeze Dryer is an automated processing system engineered for 24/7, uninterrupted bulk sublimation of heat-sensitive food, botanical, and chemical materials. Unlike batch freeze dryers that require cyclical loading, chamber depressurization, sterilization, and thermal ramping, this system utilizes a dynamic multi-stage vacuum airlock assembly. Bulk material moves progressively from atmospheric feed zones through freezing, primary sublimation, and secondary desorption zones while the main process chamber maintains a stable operational vacuum.
Designed for heavy industrial manufacturing plants, this architecture eliminates batch-to-batch downtime, prevents thermal degradation, and preserves volatile aromatic profiles at scale.
Product Range & Performance Matrix
|
Model Series |
Water Evaporation Rate (kg/h) |
Heating Shelf Area (m2) |
Primary Transport Drive |
Target Industrial Application |
|
CFD-300 |
50 - 80 |
30 |
Magnetic Coupled Belt |
Specialty botanical extracts, premium pet food |
|
CFD-600 |
100 - 150 |
65 |
Sealed Roller Chain / Screw |
Instant coffee, soluble tea, dairy concentrates |
|
CFD-1000 |
200 - 300 |
130 |
Multi-Tier Magnetic Drive |
Bulk food ingredients, freeze-dried fruit chunks |
|
CFD-Custom |
Tailored (>300) |
Engineered to spec |
Custom Engineered |
Integrated turnkey processing plants |
Core Technical Specifications
|
Technical Parameter |
Specification |
|
Ultimate Chamber Pressure |
< 10 Pa (Operational working band: 15 Pa - 50 Pa) |
|
Condenser Temperature |
Down to -75 C (Cascading refrigeration loop utilizing semi-hermetic screw compressors) |
|
Shelf Temperature Range |
-40 C to +120 C (Controlled via closed-loop silicone thermal fluid circulation) |
|
Airlock Sealing Mechanism |
Dual-chamber pneumatic slide gate valves integrated with automated gas-equalization bypass lines |
|
Product-Contact Metallurgy |
AISI 316L stainless steel (Structural support frame in AISI 304) |
|
Surface Finishes |
Mechanical ground and electro-polished to Ra <= 0.4 um on all product-facing zones |
|
Control Architecture |
Siemens S7-1500 PLC paired with WinCC SCADA; audit trail compatible with 21 CFR Part 11 requirements |
|
Power Supply |
380V / 415V, 3-phase, 50/60Hz (Custom factory voltages available upon request) |
|
Cooling Water |
15 C - 25 C supply at 0.3 - 0.4 MPa inlet pressure |
|
Instrument Air |
0.6 - 0.8 MPa, dry and oil-free supply |
Industrial Applications
Food Processing: Industrial-scale instant coffee granules, tea extracts, sliced fruits, vegetables, and bulk military field rations.
Pet Nutrition: Continuous mass production of raw meat chunks, organ blocks, and functional nutritional treats.
Botanicals & Nutraceuticals: Heat-sensitive herbal extracts, high-purity phytochemical suspensions, and delicate biological slurries.
Chemical & Advanced Materials: Nano-structured catalysts, specialty polymers, and chemical intermediates requiring precise morphological preservation.
Engineering Selection Guide
Verify the following operational parameters to match the system configuration with your factory workflow:
Evaporation Load Calculation: Define total water mass to be removed per hour based on initial moisture content and target endpoint (kg H2O/h).
Thermal Collapse Threshold: Identify the eutectic point or collapse temperature of your specific feedstock to establish upper thermal limits for primary drying shelves.
Feedstock Rheology: Confirm whether the input material is a pumpable slurry, liquid concentrate, granulated pellet, or pre-cut solid profile. (Belt systems handle solid sheet/sliced matrices; rotary or screw airlocks handle free-flowing particulates).
Plant Utility Infrastructure: Verify local industrial substation capacity for high-amperage refrigeration compressors and thermal fluid heating loops.
Regulatory Compliance Standards: State whether cGMP (Pharmaceutical), 3-A / EHEDG (Food processing), or standard heavy industrial hygiene codes apply to your plant installation.
Customization & Engineering Options
Containment & Isolation Integration: O-RABS (Open Restricted Access Barrier Systems) or physical isolator integration for toxic or high-potency chemical compounds.
Downstream Processing Coupling: Vacuum-sealed hammer mills or sorting sieves directly coupled to the dry-product discharge airlock.
Energy Reclaim Loops: Heat recovery heat exchangers channeling refrigeration compressor discharge energy back into the thermal fluid heating loop.
Alternative Heating Mediums: High-pressure steam or high-temperature hot water (HTHW) utility integration modules.
Quality Control & Manufacturing Standards
Weld Integrity Verification: 100% X-ray radiography and liquid penetrant testing (PT) executed on all vacuum pressure vessel seams and internal cooling coils.
Pressure Vessel Compliance: Manufactured and certified under ASME U-Stamp or PED 2014/68/EU engineering guidelines.
Factory Acceptance Testing (FAT): 72-hour dry-run protocol testing vacuum hold time, maximum chamber leak rate (< 1 x 10^-3 Pa*m3/s), and shelf thermal uniformity (+/- 1 C).
Material Traceability: Mill Test Certificates (MTC Type 3.1) supplied for all pressure-retaining and product-contact metal components.
Packaging & International Logistics
Modular Shipping Layout: Main vacuum vessels segmented into modular transport units; refrigeration skids and control centers pre-mounted on rigid structural transport skids.
Corrosion & Moisture Defense: Vacuum ports sealed with blanking flanges and a pressurized nitrogen holding charge; electrical enclosures sealed in heavy-duty barrier foil with active desiccant packs.
Export Crate Engineering: ISPM 15-compliant fumigated wooden crates featuring vibration-damping bases and tilt/impact monitoring sensors.
Freight Coordination: Full support for Open-Top or Flat-Rack containerized ocean shipping under DDP, CIF, or FOB trade terms.
Technical Support & After-Sales Engineering
Commissioning & SAT Execution: On-site deployment supervised by senior mechanical and automation engineers to oversee mechanical alignment, vacuum leak-check verification, and Site Acceptance Testing.
Technical Training: Comprehensive on-site training for plant operators and maintenance crews covering recipe configuration, CIP execution, and sensor calibration.
Strategic Spare Parts Inventory: Critical wear components (vacuum pump shaft seals, pneumatic valve membranes, heat-transfer fluid pumps) warehoused for 48-hour global dispatch.
Remote Diagnostic Link: Integrated secure VPN router within the PLC cabinet enabling real-time remote diagnostics and software tuning by our engineering team.
Frequently Asked Questions
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