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.

Другие товары поставщика

	Freeze-drying preservation	The preservation method is to sublimate the bacterial liquid in a frozen state. 　　Finally, a dried sample of the cells was obtained. It also ha...
	freeze drying machine for home	In order to adapt to the use in industrial environments, programmable control plays an important role in the field of: 　　1. High reliability and ...
	LGJ-12S Top Press Type Experimental Freeze Dryer	This is widely used in medicine, pharmacy, biology research, chemical industry and food production ,etc. After the freeze drying process,a long te...
	LGJ-18S Multi Manifold Top Press Type Experimental Freeze Dryer	Technical parameters 　　freeze drying area：0.09㎡ 　　tray dimensions：Ф200mm 　　tray numbers：3 　　tray spacing：70mm 　　cold trap temp.：≤-60℃，optio...
	Beef freeze dryer process	Beef freeze dryer process is a special form of food vacuum drying. There are many other methods for freeze-drying, such as vacuum freeze-drying, s...

Похожие товары

	Microcrystalline wax used for rubber and tires	Продавец: Syntop chemical Co.,Ltd.	In industrial applications, microcrystalline wax is primarily used for rubber protection, thicken...
	Microcrystalline wax used for shoe polish processing	Продавец: 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	Продавец: 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	Продавец: Syntop chemical Co.,Ltd.	The core industrial applications of microcrystalline wax 80A are primarily focused on rubber prot...
	Tyvek Flat Roll Pouch	Продавец: Hopeway AMD	Tyvek Flat Roll Pouch is designed for professional sterilization packaging, offering clean handli...