The new 60 Air Swept Classifier installed in a Spanish cement plant on a Babcock type E coal mill has increased its output by 30 % (from 15 t/h to 19 t/h). For the same residue on 90 urn, the residues on 200 urn have been reduced from 3.0 % to 0.3 %. The gas + ground coal mixture enters into the volute inlet and the gas + fine coal exhaust from the top fines chamber to the dust collector.