An organic fertilizer classifier is a machine that separates organic fertilizer pellets or granules into different sizes or grades based on their particle size. The classifier typically consists of a vibrating screen that has different sized screens or meshes, allowing the smaller particles to pass through and retaining the larger particles. The purpose of the classifier is to ensure that the organic fertilizer product has a consistent particle size, which is important for efficient application and nutrient uptake by plants. Additionally, the classifier can remove any unwanted foreign materials, such as rocks or debris, that may have been present in the raw materials used to make the organic fertilizer.