1. Change the traditional heating method, to avoid some difficulties in vacuum drying of heat transfer, slow and other shortcomings. 

 2. In vacuum conditions, with the lower boiling point materials to achieve the low-temperature drying, improve the quality of the material. Especially suitable for drying heat-sensitive and other low temperature. 

 3. Dry material temperature is very low, even heat, fast evaporation, homogeneous charge operation cost far less than the vacuum freeze-drying. 

 4. Fully closed to achieve aseptic 

 5. Products at the gap and continuous two series.