Model RC-46 Rock Crusher with "Roller Scraper" Amazing 3 Stage Compact Rock Crusher. This Model quickly crushes 4" x 6" Rock into ultra fine powder. Over 20 years of manufacturing has proven this model to be a tried and tested reliable work horse. Rock is quickly crushed into 1/8 inch in size through the first stage jaw crusher and automatically delivered into the roller mill which reduces the material into fine powder. Material is then processed through the roller scraper which further reduces the material into "Ultra Fine Powder". Oversize material may require an additional pass. All replaceable and wear parts are designed with the operator in mind for easy adjustment and replacement in the field. Powered by an 11 HP Honda engine with a 6 to 1 gear reduction for dependable service. Designed for production with the highest quality material and components available. Built as compact as possible for ease of handling and maneuverability.