The gravel yard is mainly to process large stones into different sizes of stones, so they need to set up a crushing production line. The equipment includes crushing equipment, screening equipment, feeding equipment, etc., processing different materials may require different equipment , Different types of equipment are matched to obtain production lines with different capacities. The general process is coarse crushing, medium and fine crushing. Commonly used equipment includes jaw crushers, impact crushers, cone crushers, hammer crushers, belt conveyors, Feeders, etc., these equipment can be assembled into different production lines, and users can purchase them according to actual needs.