EDCO CPM-10 Walk behind Scarifier 7.5 HP Electric 230 or 460 Volt - Three Phase Motor with up to 10" working width and 1/8" working depth per pass. Able to scarify approximately 500-700 sq. ft. per hour.  Scarifiers (aka Planers and Milling Machines) level, clean, and texture surfaces. They repair common slab problems like curled joints, unevenness, sidewalk trip hazards, and weather damage. Scarifiers remove contaminates, epoxy, paint, traffic lines, and more.