Feature of Vacuum Drying machine : 1.The vacuum system design has a new type of condenser, so that most of the moisture from the condenser cooling, is condensed to water and released, effectively avoid moisture in the drying process to affect vacuum pumps. The high temperature magnetic pump is used as the heat transfer pump to make the heating system more stable and avoid the leakage of heat conducting oil. 2.According to the different temperature of active part in the process of heating time, automatic adopt pressure exchange and transformation method to reduce the pressure to a certain value in the vacuum tank pressure in cycle, create the most suitable conditions for the moisture in the insulation part of the active part to evaporate during the evaporation process of drying process in a reasonable state. 3.Because of the scientific control of variable pressure in drying process, combined with domestic and foreign technology, can effectively solve the iron core rust problem in the drying process. 4.The level of equipment automation and product processing is highly advanced , the quality of products handled in this equipment can reach to superior class in the industry. 5.This equipment electric control system and each component system is stable and reliable, can guarantee  the smooth production . Main components of Vacuum-Pressure changeable drying equipment: 1.Vacuum drying tank                  1set 2.Vacuum system                      1set 3.Heating system                      1set 4. Low temperature condenser system   1set 5. Measure and Control system         1set 6.Pneumatic piping system             1set 7. Cooling water system               1set