A piston-type pellet press operates by applying mechanical pressure using a piston or plunger to compress powdered or granular material (such as biomass, feed, or pharmaceuticals) into dense, uniform pellets. The material is placed in a die cavity, and the piston moves vertically or horizontally to force the material into shape. These presses are typically used for small-scale production, laboratory research, or specialized industrial applications where precise control of pressure and pellet density is needed.
A ring die pellet mill is an industrial machine used to produce pellets from powdered materials such as biomass, feed, or fertilizers. It features a circular die with radial holes and rotating rollers that force the material through the die to form cylindrical pellets. Unlike flat die mills, the ring die design allows for continuous, high-capacity production with improved durability and efficiency. The process generates high pressure and heat, aiding in material binding. Ring die pellet mills are widely used in large-scale production due to their energy efficiency, uniform pellet size, and suitability for processing tough or fibrous materials.
