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Help CenterHigh Quality and Low Price Food Laboratory Freeze Dryer Price LG1.0 for Lab Applications
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Working Princple of Freeze Drying Machine
Under vacuum condition, material is freeze dried via principle of sublimation. The moisture in the pre-frozen material is directly sublimed from solid state (ice) to gaseous state (vapor), without melting. Freeze dried products are formed as sponginess, no shrinkage, rehydration excellent, very little water containing. The freeze dried product in sealed packaging can be stored and transported at room temperature for a long time.
How to process the freeze dried food?
Where can find freeze dryer video of Aerspace Xinyang?
Here "Youtube: /watch?v=bbvxYGB7XMg&feature=youtu.be"
What is the specification of LG1.0 ?
Heating plate area 1.0mm
Number of heating plates 5
Heating type Double-sided radiation
Number of trays 4
Nominal working pressure > 50Pa
Power 8.5kw
Rated maximum water trapping capacity 8kg/batch
Table1
| Specification Model | LG0.2 | LG1.0 | LG1.5 | LG5 | LG10 | LG20 | |
| Heating Areas(m2) | 0.2 | 0.8 | 1.5 | 5.3 | 10 | 20 | |
| Numbers of Vapor trap | Single | Single | Single | Single | Single | Single | Double |
| Trapping Capacity | >2kg/batch | >8kg/batch | >20kg/batch | >65kg/batch | >130kg/batch | >250kg/batch | >44kg/hr |
| Heating Medium | Electric | Electric | Electric | Water&electric | Water&electric | Water&electric | Water&Steam |
| Heating Mode | Double side radiation | ||||||
| Temperature range of Heating plates | Normal Temp.~+120℃ | <95℃ | <95℃ | <95℃ | Normal Temp.~+130℃ | ||
| Vacuum Pressure (Pa) | 20~133 | ||||||
| Need Refrigeration Capacity (t0=-40℃,tk=-35℃) (Kw) | With Refrigeration System | 18 | 35 | 44 | |||
| Consumption of Steam (kg/h) | None | None | None | None | 50 | None | 75 |
| Electric Power Supply (Kw) | 3.2 | 8.5 | 15 | 35 | 26 | 65 | 38 |
| Tray Numbers | 2 | 4 | 4 | 14 | 26 | 52 | 54 |
| Loading Raw Material | 3 | 8 | 20 | >70 | >130 | >260 | >270 |
Q: What is freeze drying processing ?
A: Freeze-drying—technically known as lyophilisation, lyophilization, or cryodesiccation—is a dehydration process typically used to preserve a perishable material or make the material more convenient for transport. Freeze-drying works by freezing the material and then reducing the surrounding pressure to allow the frozen water in the material to sublime directly from the solid phase to the gas phase.
Q: How many properties of freeze-dried products?
A: If a freeze-dried substance is sealed to prevent the reabsorption of moisture, the substance may be stored at room temperature without refrigeration, and be protected against spoilage for many years. Preservation is possible because the greatly reduced water content inhibits the action of microorganisms and enzymes that would normally spoil or degrade the substance.
Freeze-drying also causes less damage to the substance than other dehydration methods using higher temperatures. Freeze-drying does not usually cause shrinkage or toughening of the material being dried. In addition, flavours, smells and nutritional content generally remain unchanged, making the process popular for preserving food. However, water is not the only chemical capable of sublimation, and the loss of other volatile compounds such as acetic acid (vinegar) and alcohols can yield undesirable results.
Freeze-dried products can be rehydrated (reconstituted) much more quickly and easily because the process leaves microscopic pores. The pores are created by the ice crystals that sublimate, leaving gaps or pores in their place. This is especially important when it comes to pharmaceutical uses. Freeze-drying can also be used to increase the shelf life of some pharmaceuticals for many years..
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