A Hopper is a large, pyramidal shaped container used in industrial processes to hold particulate matter that has been collected from expelled air. The main function of hoppers is to store the materials next to equipment for feeding. Ratholing occurs when material flows in a channel located above the chute, silo, bunker or hopper outlet. It is designed so that stored material can be dumped or fed to a process easily. Hopper is made available by us in various designs.