... , raw material feeding plate, driving and supporting device, etcRotary Drying Machine Principle of Operation:The raw material plate which ... cement, chemical, metallurgical, building materials industries. Rotary Drying Machine advantages are as follows: high dry capacity, smooth rotation, ... , high output and so on.Specifications of Rotary Drying Machine : Type (mm)Gradient (%)Rotational speed (r/min) ...