In logistics, a sorter is a system which performs sortation of products (goods, luggage, mail, etc.)
[1] Sortation is the process of identifying items on a conveyor system, and diverting them to specific destinations.
Sorters are applied to different applications depending upon the product and the requested rate.
A feeder system whose sole purpose to feed the products into the sorter in proper orientation and with proper spacing, so that the sorter could operate correctly.
[1] Another common element are receptacles which receive the products as they leave the sorter towards a proper destination.