The Condry cone central shaft dryer features a large “static” heated surface area (vessel walls) and large “dynamic” heated surface area (heated agitator), making it an efficient and cost-effective drying method, according to Heinkel USA. The unit has a conical bottom with a central discharge valve and an agitator arm profile with teeth. The agitator design prevents agglomerates from forming, eliminating the need for choppers (homogenizers, lump breakers). Narrow tolerances between the agitator and vessel walls prevent product from adhering to the walls, resulting in good heat-transfer and emptying characteristics. The dryer can process a wide variety of products, including those that are heat-sensitive or have fragile crystal structures.