Glass rotary evaporator (hereinafter referred to as the evaporator) is the working principle: Processed poured cloth on the heating surface, and by the film shaped scraper scraping Chengchuan rotor flow state downward movement in the vacuum conditions, low temperature evaporation; at the same time, solution of water (or solvent) is heated into steam leaving the heating surface increased, countercurrent. The liquid foam entrainment separator and fall back to the surface by heating area, steam through the separator to leave G evaporator.

         Glass rotary evaporator (device) in the constant temperature heating, negative pressure is formed under the condition of high rotary film evaporation, and then the cooling of solvent recovery, particularly suitable for heat sensitive materials crystallization, separation, solvent recovery operations, some models can do reflux extraction. Biological, medical research and production of medicine, chemical, food industry an important instrument and equipment.