How Crawler impact crushing station works? In the mining and quarry industry, mobile impact crusher plant is usually as secondary crushing machine to process rocks or ores from priamry jaw crusher plant. After impact crusher machine crushing, precisely shaped cubical end products is feed to vibrating screen to get different size material, 0-5mm, 5-10mm, 10-20mm, 20-40mm or some other required size. Vibrating screen is designed to be same level with impact crusher. The oversized material from first layer could be fed to impact crusher directly to crush again. Other required size is sent to stock ground by belt conveyor. Compared to stationary stone crusher plant, iIt has good mobility and can extend together with the raw materials site or construction site and has many types of combinations to satisfy the processing needs of different materials.