Organic fertilizer screening equipment is used to separate the finished granules from the oversized and undersized particles in the production process. This ensures that the final product is of consistent quality and size. The screening equipment can be a vibrating screen, rotary screen, or a combination of both. It is typically made of stainless steel and has different size screens or meshes to classify the particles based on their size. The machine can be designed to operate manually or automatically depending on the production needs.