Domestic vacuum freeze-drying technology has achieved better development

In recent years, the technological development of the domestic vacuum freeze dryer industry has always been behind the world level. With the continuous advancement of various technologies and rising investment in R&D and innovation, technological development will undoubtedly require greater attention. However, China’s core technology areas are heavily dependent on imports, which has led to the vacuum freeze-dryer industry always following other countries, unable to achieve overtaking.

Vacuum freeze dryer is a high-tech product integrating electronics, vacuum science, mechanics, thermodynamics, program control and many other disciplines. It is the seven advantages of material microwave vacuum freeze-drying equipment in the drying process. A new technology and new process have been developed based on the analysis of the theoretical changes, the exchange of internal and external heat and mass, and the process of moisture migration under vacuum freezing conditions.

Experts said that in exploring the new development path of drying technology, comprehensive consideration must be given to energy efficiency, environmental protection, and product quality in order to achieve comprehensive, coordinated, and sustainable development. To implement the development strategy of high efficiency and green drying, we must first take the path of resource-saving development, and change the single extensive drying into a combination and intelligent drying. It is necessary not only to fundamentally transform the drying process, but also to carry out comprehensive and multi-level energy-saving technological transformations and vigorously develop drying technologies that apply renewable energy and industrial waste heat.

Vacuum freeze dryer still needs to improve technical innovation

Insiders pointed out that domestic companies have accelerated the study of vacuum freeze-drying technology, which has reduced energy consumption to a certain extent, reduced pollution, brought more benefits and value to the society, and made it necessary to achieve green production and low-carbon production. Contributions. But at this stage, the vacuum freeze dryer revolution in China has not yet been successful. Vacuum freeze-drying equipment manufacturers generally have low innovation capability. Poor enterprises that can introduce new technologies and new products with independent intellectual property rights have led to slow development of drying technology. Knowledge achievements have not been effectively translated into actual productivity. At present, the R&D and innovation of technologies in the field of drying equipment mainly rely on universities and research institutes. Due to the disconnection of companies, it is difficult to effectively turn knowledge achievements into productivity.

It can thus be seen that relevant companies should carry out comprehensive and multi-level energy-saving technological transformations and vigorously develop drying technologies that apply renewable energy and industrial waste heat. However, domestic companies have accelerated the study of vacuum freeze-drying technology and are gradually building up the advantages of domestically produced equipment, and have basically achieved a leading position in the domestic market. Vacuum freeze-drying equipment will become the mainstream of market demand. The domestic industry must significantly improve the technical level, improve the drying efficiency, reduce energy consumption, and contribute its own strength to achieve green production.

Vacuum Drying Oven

The vacuum drying oven(vacuum tray dryer) is a static dryer. It is used to dry fruit, vegetables, chemical product or pharmaceutical product. As it works in low temperature and high vacuum, it can yield high quality product.


Vacuum drying oven is widely applicable for drying and sterilization in fields of biochemistry, pharmacy, medicine and health, agriculture and scientific research and environment protection. It is designed specially for drying of material which is thermo-sensitive and oxidative easily.



  • It has follow advantages compare with the routine dry technology:
  • Vacuum environment greatly reduced the liquid boiling point which needs to drive out, therefore the vacuum dry method is applicable for heat sensitivity material;
  • For the sample that can't be dried easily, such as powder or other pellet form sample, using vacuum dry method may efficiently shorten dry time;
  • Various complex structures of machinery ministry or other porous sample process are used of vacuum dry method after washing, and Completely dry without leaving any residue;
  • Use more safe: under vacuum or inertia condition, completely eliminate the possibility that the oxide heated and explode;
  • Compare with the normal drying depended on air cycle, Powder samples will not be blown or moved by air


Vacuum Drying Ovens, Vacuum Drying Chamber, Vacuum Drying Equipment, Vacuum Drying Machine

Changzhou Ruide Drying Engineering Technology Co., Ltd , https://www.rddryer.com