First, we need to consider the output demand of the crushing. If it is a large-scale breeding, we need to choose a model with a larger output; secondly, we need to pay attention to the particle size requirements of the crushing. Different animals have different requirements for feed particle size at different growth stages; we also need to consider the type of feed, such as grains, forage, etc. Some grinders are better for crushing specific types of feed; in addition, the quality, stability, energy consumption and after-sales service of the machine are also important factors. For example, a small farm may choose a small hammer mill to meet daily needs, while a large farm may need a larger and more efficient water drop grinder.