The tracked mobile impact crusher is used to crush the soft rock recycled at quarry, mine and construction waste, which is with high crushing ratio and good particle shape. RS series integrates with the crushing and screening functions, and NFI1313RS is added with a screen box with double layer mesh screen based on the original impact crusher, which used to send back the oversize material back to the crusher host. The classifying screen can be removed rapidly for further processing without secondary screening or returning of materials.