1. Chamber insulation layer to have good thermal insulation properties of polyurethane foam conforms to GMP requirements. 2. Intelligent process control technology, data control, acquisition, memory, and output all be completed by computer. 3. Using alternate water vapor trap to work, without downtime maintenance, suitable for continuous use. 4. Using a compressor mixed refrigerant technology, low power consumption.. 5. Drying time is short, low energy consumption, operation, reliable, high degree of automation and easy operation. 6. Transparent chamber can be easily observed changes in chamber products. 7. Using shelf of 316L metal surface, catching frost, heat quickly, catching water and strong, corrosion resistance, long service life. 8. Vacuum setting system can be controlled by setting the value of vacuum within. 9. During the process all parameters can be displayed on the screen. 10.Host and vacuum flange connection between the use of quick release, easy to use. 11.Using anti-vacuum pump oil back. 12.With a variety of configuration options required for freeze-dried 13.Cold trap material also serves as the pre-freezing chamber. 14.RS-232 communications interface (PC) available as an option, can be freeze-dried to achieve the data stored on their computer, upload, browse. 15.Electrical heating for de-icing. 16.Set vacuum, refrigeration, heating and control functions into one, a vote expected to complete drying. 17.Test characteristic line to enlarge the production of freeze-dried.