Despite a significant degree of improvement of modern pneumatic separators, the method of feeding
grain material into the channel remains an important issue today. The article provides an overview of feeding
devices, their classification, and the design which is aimed at improving the interaction of the grain mixture with
the air flow in the working area of separation. Promising directions for improving feeding devices of vertical
pneumatic separating channels are outlined. On the basis of the review, the importance of practical application of additional technical means that contribute to the layering of the grain mixture both before entering and in the
working area of the pneumatic separation channel is determined.