My recommendation would be to use a horizontal motion conveyor to reduce segregation. Unlike conventional vibrating conveyors that use a vertical pitching motion to propel material with repeated impacts which can cause product breakdown, a horizontal motion conveyor employs a single-drive mechanism to move the product. This mechanism provides a unique horizontal differential motion which glides the product down the pan. The consistent conveying motion throughout the length, width, and depth of the product bed helps prevent build-up. And because it isn’t dependent on impact to provide motion, the horizontal motion conveys deep product beds uniformly, with no stratification. This video shows how horizontal motion conveying can help prevent segregation. Other horizontal motion conveying videos are also available.