Abstract: A tobacco separator is provided for separating light fractions (laminae) from heavy fractions (mid-rib or stem) from threshed tobacco.The separator comprises a separating chamber (10) having an upper first inlet (8) for receiving the material to be separated or classified, and a lower second inlet (9) for receiving a flow of air directed transversely of the material path from the first inlet, a plurality of channels (14-17) are disposed one above the other to receive the tobacco laden air from said inlet, a vertical air passage (20) in communication at its lower end with the lowermost of said channels; and an outlet passage (19) in communication with all said channels.