Crusher Stone Grit. Crusher Stone Crusher stone grit is a form of construction aggregate, typically used to make railroad tracks ballast and filter stone. Stones are crushed in crushers.Sand Crushers We provide sand crushers based on the requirements of our clients. Our rock sand crusherproduces artificial sand. Artificial sand crusher is specially designed for manufacturing artificial sand from the grit. It is a better utilization of the large size of rock materials and stones through rock on rock metal machine mechanism.