Profile: Gerhart Machinery Co. supplies new, used and remanufactured cranes & draglines. We serve the heavy construction, mining and quarry industries. We concentrate in crane, dragline and shovel sales, as well as rentals & rebuilding. We produce heavy construction equipment. We install O.E.M. bushings, bearings, & seals and clutch & brake linings. We offer accessories, which include booms, fairleads, taglines, drop balls and cables.