Biological product freeze-drying machines are also low-temperature freeze-drying machines, which can control the processing of material products at low temperatures. Therefore, they are suitable for heat-sensitive biological products such as enzyme freeze-drying, antibiotic freeze-drying, hormone freeze-drying, protein freeze-drying, nucleic acid freeze-drying, peptide freeze-drying, blood freeze-drying, and immune product freeze-drying. There are also cosmetics freeze-drying machines, testing agent freeze-drying machines, biological tissue freeze-drying machines, pharmaceutical freeze-drying machines in different industries The application of freeze-drying machines such as extract freeze-drying machines. Due to the fact that over 97% to 99% of the water is discharged through freeze-drying, which is beneficial for the long-term preservation and transportation of biological substances. Moreover, the drying process of biological products is carried out in a vacuum environment and is not easily oxidized. Therefore, biological freeze-drying machines are suitable for some biological products with special chemical, physical, and biological instability, and can be processed through freeze-drying technology.

Utilizing the principle of food freeze-drying machines to process and produce flower free fruit freeze-drying products, meeting the needs of various industries, developing and producing various types of fig, solving the problem of difficult storage and deep processing of fig, and ensuring a natural and healthy food supply. The food freeze-drying machine also meets the development and processing applications of apple freeze-drying, lemon freeze-drying, kiwi freeze-drying, lychee freeze-drying, blueberry freeze-drying, etc.

What's wrong with the traditional Chinese medicine freeze-drying machine

After obtaining a traditional Chinese medicine formula, it is mixed and boiled to obtain a soup. It enters the SFD traditional Chinese medicine freeze-drying machine for low-temperature cooling and crystallization to form a solid state. It is frozen at a crystallization temperature of -50 ℃ for about 3-5 hours, and then enters the primary drying stage of vacuum drying. The primary drying temperature control range is -50~10 ℃, the vacuum control of the freeze-drying machine is 15PA ± 3, and the drying time is about 12-20 hours. After the first drying, the traditional Chinese medicine freeze-drying machine enters the analytical drying stage, with a temperature control range of 15-55 ℃. The vacuum control of the vacuum freeze-drying machine is 10PA ± 3, and the freeze-drying time is about 10-15 hours.

After the analysis and drying process is completed, the freeze-drying machine automatically enters the insulation stage. Before discharging, a pressure rise test is conducted to ensure the freeze-drying effect is achieved. Then, a Chinese medicine freeze-drying material with 1% water content is obtained, which is then crushed at low temperature to obtain a Chinese medicine soup freeze-drying powder. Throughout the vacuum freeze-drying process, physical water removal is carried out in low temperature and vacuum environments, effectively ensuring that the material does not mutate, oxidize, and produce no chemical reactions, ensuring the pharmacological properties of traditional Chinese medicine.

The freeze-drying machine equipment is composed of: freeze-drying box, refrigeration system, vacuum system, circulation system, electric control system, etc. The freeze-drying box is composed of a material warehouse and a condensation warehouse, with a middle isolating valve control switch in the middle. The working operation of the freeze-drying machine is controlled by the PLC electronic control system to control the refrigeration, vacuum, circulation, heating, etc. of the entire equipment, including the pre freezing stage, primary drying stage, and analytical drying stage. Diagnostic reagents require high material requirements and require the use of 304 or 316 stainless steel materials. According to the requirements of the diagnostic reagent freeze-drying process, there are strict requirements for the technical indicators of the freeze-drying machine equipment.