Features: 1.Adopting international advanced EL gas-tight system can keep high vacuum degree. 2. Host and vicehighly effective double condenser,easy to install, good sealing. 3. The rotating flask is connected by screw nut, easy to install and setup. 4. Continuous feed are available. 5. The vacuum system is installed vacuum meter, and can adjust vacuum degree for low boiling point material. 6. Built-in transmission system, stable and reliable speed. 7. Explosion-proof system is optional. -The advantage ofproviding careful thermal treatment of temperature-sensitive mediums..syi