Drag Conveyors consist of evenly spaced rounded or rectangular flights mounted on a continuous chain that travels around a drive and a tail sprocket. The chain and flights are housed in a trough assembly that consists of a material conveying section and a return section. Drag conveyors typically operate with material being “control-fed” into the trough area, but can be designed to convey materials in applications where the material is “choke-fed” (i.e. coming out of a hopper or a process where the material feed rate is not metered).