Often a question is asked if conveyors can be made reversible the simple answer is yes.
Additional controls can be added to give a stop ~ start ~ reverse action. This is often used on floor to floor conveyors were products may need to be stored out of the way on a mezzanine floor and bought down for despatch when ordered.
Having a revesible conveyor replace having to either bring goods down manually or having the need for two conveyors.
Many types of belt can be supplied depending on the products to be moved.
This photo show a grip belt conveyor to transport parcels to an upper level.