A & J Mixing manufactures a variety of industrial hoppers: weigh hoppers and discharge hoppers, hoppers for feeding, intermediate storage, receivers, . We have experience with many materials and know how in design. Hopper design has to fit the process requirements. We model all our industrial hoppers with the angle of repose to determine true volume. In places where height is tight, we can tweak every dimension may have to get into the space. Sometimes we use larger valve sizes to reduce height and get enough space to install.