Ponndorf Spent Grain Removal Ponndorf systems are simple yet efficient systems that help you get rid of your spent grain. Ponndorf has the best solutions for wet spent grain conveyors, dryers and silo systems. The new generation of Ponndorf spent grain conveyors are designed for the modern brewery. These systems meet today’s demands for operational safety, low air consumption, easy cleaning and maintenance. Gusmer Enterprises’ technical staff will assist in designing a complete spent grain removal system that suits your needs. Ponndorf spent conveyors operate on the principle that spent grain enters the conveyor through the top, is compressed by a screw, and then pushed through the spent grain piping pneumatically. They offer a simple, quiet and efficient way to convey spent grain. From lauter tun, to spent grain silo, Ponndorf is your solution.