The rotary body of the rotary evaporator is composed of a group of stable and reliable micro motors, high-speed motors and integrated circuit control devices. Keda rotary evaporator adopts a fast and high lifting mechanism. Keda rotary evaporator can be tilted arbitrarily in the range of 0-45° along the horizontal direction. The evaporator adopts a vertical condensation system with a high evaporation rate. The sealing element of the evaporator adopts high-performance polytetrafluoroethylene material with good performance and good sealing and sealing effects. Keda rotary evaporator RE-52A, 52C, 5299 three models of stainless steel water bath pots can be used for water bathing. The evaporator is equipped with an automatic temperature control digital display for easy operation.