LGJ-18 top press type freeze dryer
The freeze dryer consists of a refrigeration system, a vacuum system, a heating system, and an electrical instrument control system. The main components of the freeze dryer are a drying oven, a condenser, a refrigeration unit, a vacuum pump, a heating/cooling device, and the like. The freeze dryer works on the principle of freezing the dried object to below the triple point temperature, and then sublimating the solid water (ice) in the article to water vapor under vacuum conditions, and removing it from the article to make the article dry. After the material is pretreated, it is sent to the quick freezing warehouse for freezing, and then sent to the drying chamber for sublimation dehydration, and then packaged in the post-treatment workshop. The freeze dryer vacuum system establishes a low pressure condition for the sublimation drying chamber, the heating system provides sublimation latent heat to the material, and the refrigeration system provides the required cooling capacity to the cold trap and the drying chamber.
Advantages of freeze dryers:
1. Many heat sensitive substances will not be denatured or inactivated;
2. When drying at low temperature, some volatile components in the material are lost little;
3. During the freeze-drying process, the growth of microorganisms and the action of enzymes cannot be carried out, so that the original traits can be maintained;
4. Since the drying is carried out in a frozen state, the volume is almost constant, the original structure is maintained, and no concentration phenomenon occurs;
5. Since the moisture in the material exists in the form of ice crystals after pre-freezing, the inorganic salt-dissolved substances originally dissolved in the water are evenly distributed in the materials;
6. The material after drying in the freeze dryer is porous and spongy. After adding water, the solution dissolves quickly and completely, and the original trait is almost immediately restored;
7. Since drying is carried out under vacuum, there is very little oxygen, so the freeze dryer is protected against some easily oxidizable substances.
If you have the needs of freeze dryers, freeze dryers, etc., you need to know the quotation, Please go to to find the or : Contact us, we will contact you in the first time.
Send product request
Other supplier products
 |
DWJ-3XD Low Temperature Cold Trap | Suitable for scientific research, biology, physics, medicine, chemical industry and other departments for low temperature test . The stainless st... |
 |
LG-50 production food freeze dryer | March means that spring has come, the earth has melted the snow and ice, and the warm sun has gradually climbed into the sky with the rain and the ... |
 |
LGJ-20F Gland Type Experimental Freeze Dryer | Freezing and drying process of LGJ-20F (silicon oil heating) are finished in the same place (patented product). It changes the cumbersome operation... |
 |
Food freeze dryer | With the continuous development of the economy, convenient and fast, nutritious food has become the pursuit of people. The traditional method of ea... |
 |
Biopharmaceutical freeze dryer | Due to the high requirements of the biopharmaceutical manufacturing environment, it is necessary to ensure that the manufacturing environment is dr... |
Same products
 |
Microcrystalline wax used for shoe polish processing | Seller: Syntop chemical Co.,Ltd. | Microcrystalline wax is commonly used in shoe polish, primarily to harden the formula, adju... |
 |
Microcrystalline wax used for rubber plastic processing and modification | Seller: Syntop chemical Co.,Ltd. | Microcrystalline wax has a wide range of industrial applications, primarily in the areas of rubbe... |
 |
Microcrystalline wax 80A used for lubrication and demolding | Seller: Syntop chemical Co.,Ltd. | The core industrial applications of microcrystalline wax 80A are primarily focused on rubber prot... |
 |
Tyvek Flat Roll Pouch | Seller: Hopeway AMD | Tyvek Flat Roll Pouch is designed for professional sterilization packaging, offering clean handli... |
 |
Industrial Warehouse Ceiling Fans | Seller: Hebei Windmax Power Technology Co., Ltd. | Industrial Warehouse Ceiling Fans Industrial Warehouse Ceiling Fans for Warehouses, Logis... |
