Basic principle of vacuum freeze-drying:
1.Frozen original material first,
2.Ensure the condition of vacuum and adequate heating, then the water will be removed from frozen product by sublimate,
3.Finished product will maintain frozen state and biological structure.

Step-by-Step Process Map by Commercial freeze drying machine
Pre-Freezing → Material is frozen below its eutectic point to solidify water.
Tray Loading → Frozen product is arranged on trays and transferred via trolley.
Chamber Loading → Trolleys are sealed inside the lyophilizer.
Primary Drying → Vacuum + gentle heat removes ice via sublimation.
Secondary Drying → Higher temperatures eliminate residual moisture.
Unloading & Packaging → Dry product is extracted, inspected, and packed.

A sample plant of Commercial freeze drying machine

Completed systems for Commercial freeze drying machine includes:
-Drying Chambers:Pre-integrated heating plates & condensers
-Thermal Systems:Hot water system + ammonia circulation
-Vacuum Systems:Dual-stage evacuation with maintenance pumps
-De-icing Technology:Alternative de-icing system for continuous operation
-Material Handling:Freezing tunnels, rail system, trolleys & trays
-Control Infrastructure:Centralized control center with industrial PC and HMI panels
-Auxiliary Systems:Complete piping, valves, electrical cabling, and pneumatic systems
Commercial freeze drying machine customizable configurations available upon request!
Alternative Vapor Trap Systems for Commercial freeze drying machine
✔ No condenser defrosting needed (if using desiccants/adsorbents).
✔ Energy-efficient (no need for ultra-low condenser temps).
✔ Compact design (useful for big-scale or industrialized applications).
Vapor trap is built into the bottom of the Vacuum freeze drying machine chamber and is equipped with a double steam condenser for continuous deicing (CDI).
During the whole freeze-drying process, When the right condenser in the chamber begins to melt ice, the sealing door plate of the condenser in the chamber moves from the left side to the right side to close the right condenser, and the left condenser communicates with the chamber for water vapor capture. The de-icing tank connects the negative pressure water vapor on the right side of the chamber into the right condenser which has been closed by the sealed door, and melts the thin ice collected on the bundle into water, which flows into the de-icing tank through the lower part of the same pipeline. After the right condenser completes the ice melting, it turns to the left side to achieve the alternating ice melting of the two condensers. During the whole freeze-drying process, no additional time is required to melt the ice individually, which helps to increase the capacity of production.

Technical data of Vacuum freeze drying machine
Energy-smart twin chambers can save 30% energy consumption.
Company profile
Dalian Iceberg Freeze Drying Technology Co., Ltd. is a leading manufacturer of Vacuum freeze drying machine and individual quick freezing (IQF) equipment, integrating R&D, production, and engineering services. Our technology of Vacuum freeze drying machine, optimized with global expertise, delivers high efficiency, low operational costs, and rapid project execution—trusted by clients across China and internationally, including to Europe, Central America, Southeast Asia.

FAQ
What is the Freeze-Drying Solutions of Vacuum freeze drying machineby Dalian Iceberg?
✔ Industrial-Scale Vacuum freeze drying machine
Ideal for Vacuum freeze drying machine with continuous drying & efficient de-icing.
Sizes: A50–A200 (expandable options).
✔ Pilot Freeze Dryers
Compact & reliable for R&D or small production.
Standard: A5–A30 | Custom designs supported.
Need a specific configuration? Contact us!
Retains nutrients: Freeze-dried food retains up to 97% of its nutrients, including vitamins, minerals, and antioxidants. Long shelf life: Freeze-drying removes the potential for bacterial growth, so freeze-dried food can last for years. Maintains flavor and texture: Freeze-drying preserves the original shape, flavor, and texture of food. Sustainable: Freeze-drying reduces food waste and transportation and storage costs.
Freeze drying works by first freezing a substance, then lowering the pressure around it to a vacuum, which allows the frozen water to directly transition from a solid (ice) to a gas (water vapor) through a process called sublimation, effectively removing the water content without going through a liquid phase, thus preserving the material's structure and properties; this is often used to preserve food, pharmaceuticals, and biological samples by significantly extending their shelf life.
We Dalian Iceberg produce and supply freeze drying equipment with the below types and sizes: 1)Type: Industrial scale of freeze dryers with internal assembly of vapor trap(s) with separate condensers performing the functions of alternative vapour trapping and de-icing Sizes: A50, A75, A100, A125 and A200 2)Type: Pilot Freeze-dryers with one-time condenser Size: A5, A10, A20, A30 We can also develop other model of pilot freeze-dryers according to customer’s demands
It is 120-150 days in Europe and the United States, and 90-120 days in other regions.
Within 24 hours
The following 14 items of supplies are included in the contract price offer: 1) Drying chambers (with already integrated internal packages of the heating plates and the condensers) 2). Hot water system 3). Vacuum system with units for initial evacuation and vacuum maintaining 4). Ammonia circulation system 5). Alternative de-icing system 6). Pneumatic system 7). Cooling system (cooling tower) 8). Control centre with control panels and computer 9). Freezing tunnels 10). Rail system 11). Trolleys 12). Trays 13). Connecting pipes, pipe fittings and valves for systems 14). Cables, wires, shielded control lines, etc. for all systems We can also add other equipment according to customer's request.