Centrifugal air classifiers have found application in separating finer size particles. The working principle is the use of centrifugal force, gravity and collision resulting in precise separation of particles as per density and size. Centrifugal air classifier is usually operated at low power and therefore are less prone to damage from prolonged use. These can be used for separating particles in the range of 5-180 micrometers which is not possible to achieve using a conventional screening method. Centrifugal air classifiers from Chanderpur Group also provide extended usability as these can be installed with an open or closed-circuit grinding equipment. The product quality of a wide range of compounds such as limestone, silica, feldspar, alumina, zirconia can be upgraded by using centrifugal air classifiers.