A cleated belt tube conveyor for conveying granular material, such as seed and grain commodities. The conveyor comprising a cleat row profile incorporating one or more of the following aspects: taller central cleat member and a slanted or clipped peripheral cleat. A cleated belt conveyor guide element, comprised of a plurality of longitudinally spaced-apart lugs that extend from an inner surface of the belt is also disclosed. A cogged roller, having a plurality of channel segments divided by drive bars, complements the guide element. Also a baffle assembly can be disposed within the conveyor tube to limit material back flow. The baffle assembly can be configured with a belt passage aperture that corresponds to the cleat row profile.
