Shanghai RITAI introduces a new generation of microcarrier Cell Culture Bioreactors. We adopt centrifugal lifting type Agitator, which has features of low shearing force, rapid solution circulation , shorter mixing time, and ability of linear scale up. And we adopt new type of aeration tube, which has features of foam free deep aeration, oxygen Transfer Rate (Kla between 4-8) satisfy.. Moreover, we also adopt unique decanting column, which has features of Simple structure, stable and reliable, Perfusion rate higher than 5 times of the working volume/per day, a self cleaning function and of features of liquid level being automatically controlled