Introduction: Rotary evaporator is better to use when when you want to get rid from the solvent. lets say you have a solution of some chemical in some solvent. if you want to obtain a oil or crystal form of the chemical, you may put solution to rotary evaporator and evaporate the solvent. R-series rotary evaporator mainly used in lab test, middle test, and production of biological, pharmaceutical, chemical, food industries etc.it upgrade to have large capacity and caliber rotary evaporating flask, make solution diffuse and evaporate efficiently under the condition of constant rotating and heating in the water bath.it can match with vacuum pump, chiller etc to constitute system equipment. Features of R Series Rotary Evaporator: Teflon (PTFE) and fluorine rubber double rotating seal, patent technology to ensure high vacuum. The temperature control system, accurate and reliable. In does not affect the system and solution under the condition of vacuum distillation, continuous collection. The PTFE discharge valve, corrosion resistance, no pollution. We have two kinds of conventional and explosion-proof type, can be selected according to the experiment