Description: Ring Dryer is pneumatic dryer wherein the solid particles are held air borne in controlled circulation, while the drying air is constantly renewed. The dryer is supported with the manifolds, which is a special centrifugal classifier built to separate dry and fine particles while holding the moist and large particles for longer internal circulation. These enable the dryer to dry the materials that could be flash dried and also to obtain exceptionally good control of the final product moisture.