We're the largest commercial rotary heat treat shop in America. Building customer trust for over 70 years.
American Metal Processing Company (AMP) is the nation's largest commercial rotary heat treat facility. Since 1945, we've provided the highest quality product available in the heat treatment of parts for the automotive, construction, agricultural, aircraft, and military industries. We're not just a supplier, we're your partner.
AMP specializes in neutral and case hardening of small steel parts produced by stamping, fineblanking, heading, forging, and machining operations. Our process is best suited to high-volume, mass-produced parts with simple geometries. We offer both water- and oil-based quenchants in tandem with our neutral- and case-hardening furnaces.