Vacuum freeze drying technology, also known as sublimation drying, is a method of pre-freezing water-containing substances and sublimating the water under vacuum. The original biological and chemical properties of freeze-dried products remain basically unchanged and are easy to store for a long time. After adding water, it can be restored to the state before freeze-drying and maintain its original biochemical characteristics. Therefore, vacuum freeze-drying technology is widely used in medicine, food, chemical industry, biological products and other fields.
Product application
Product parameter
| Product Model | HFD-8 |
| Freeze-dried area | 1 M2 |
| Processing capacity | 10-12 kg/batch |
| Tray quantity | 8pcs |
| Tray size(mm) | 265*435*25 |
| Spacing between partitions | 40mm |
| Power(W) | 2500 |
| Ultimate vacuum | 15Pa |
| Cold trap temperature | ≤-40ºC |
| Temperature probe | independent probe |
| Compressor | French Danfoss brand |
| Frame | Iron frame + Plastic spraying |
Main features
- The machine adopts Danfoss compressor, rapid cooling
- LCD screen control, easy to operation, and powerful function
- The door of the drying chamber is made of colorless and transparent organic glass, allowing the entire freeze-drying process to be observed.
- The vacuum pump adopts international standard KF quick connector connection.
- Stable performance, easy operation and low noise.
Attentions
- Must use a grounded power outlet.
- Working environment temperature≤32℃, the humidity≤80%.
- After drying finished, open the vent valve to inflate air at first, then close the vacuum pump to prevent sample contaminated by the pump oil. If a sudden power outage, open the vent valve immediately, and take out the samples as soon as possible, properly stored.
- Keep the seal ring clean, and cannot Scrub with organic solvents.
- Replace the vacuum pump’s oil after working 100 hours, check and maintenance the pump regularly.
- Do not frequently switch power supply and refrigerator, If the refrigerator is shut down caused by operation, at least three minutes to wait, and then restart the refrigerator
Product details
High power vacuum pump
Pure copper motor, strong power
LCD touch screen
Multiple functions and easy to operation
Independent probe
Each of the floors has independent probes for temperature measurement
Auto defrosting
Fast defrosting function, more efficient
Glass doorappearance upgradea
Thickened see-through door for stronger sealing
Our Factory
Related product
Vacuum freeze-drying is one of the most gentle ways to dry. It is based on the sublimation principle, that is, the solid phase directly into the gas phase of this physical phenomenon. The freeze-dried material is placed in a vacuum drying chamber for drying, and the water vapor produced by the cold trap is condensed to form ice, so as to achieve the purpose of eliminating water vapor. Vacuum pump is used to discharge the air in the drying room, not including water vapor.
The baffle plate is provided with a heating device, and the heat is transferred to the material through the conduction function to provide the energy needed for sublimation. When the free water in the material is sublimated, the internal bound water can also be removed from the material at a very low vacuum. This drying process is considered to be the last stage of drying, analytical drying.
Packing & Shipping
In-Sale Service
With supervision from the source of products, the qualified rate of raw materials entering the factory can reach 100%;
Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach 100%;
Provide product's inspection record of key junctures to customers;
Provide production schedule photos to customers at regular intervals;
Package and transport of products are in strict accordance with the export standard;
Provide transportation schedule information to clients timely.
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