Impact crushers are machines used in the construction and mining industries to break down large rocks and materials into smaller pieces. They work by using a high-speed rotor that throws materials against a solid surface, causing them to shatter. This process is efficient for producing various sizes of aggregates, which are essential for making concrete and asphalt. These crushers are known for their versatility and ability to handle different types of materials, including limestone, granite, and recycled concrete. They are often preferred for their ability to produce a cubical product shape, which is beneficial for many applications in construction and road building.