Jefferson Machine Company (JMC) is a heavy equipment / crane parts manufacturer and machine shop located in Punxsutawney, PA. Founded in 1939, we have grown to over 50 employees. We specialize in the manufacturing and sales of both OEM and Aftermarket Crane Parts for a variety of makes and models, including Lima, Manitowoc, Terex, American, P&H, Bucyrus-Erie, Demag, and Caterpillar. Our services also include shop service, field service, and machine shop services. Our experienced machinists can repair and replace heavy equipment parts, presses, manufacturing roll cores, spur, helical, and bevel gears. We are committed to customer satisfaction, from the management team to our skilled staff of certified welders and machinists, support personnel, and sales representatives.