Family-owned Spectrum Machine grew from the Lamb family’s garage shop into an Ohio manufacturer known for its focus on bronze. Today, the company serves industrial customers through custom machining and a Ravenna foundry built in 2011.
Ryder-Heil Bronze, IncFounded in 1910, Ryder-Heil Bronze is a Bucyrus, Ohio foundry and machine shop producing custom bronze castings and machined components. The company added its machine shop in 1928 and now works from a 45,000-square-foot facility, combining green-sand molding and modern CNC equipment for projects ranging from prototypes to short- and medium-length runs. Ryder-Heil handles melts up to 1,500 pounds and sources its alloys domestically.BUCYRUS, OH
Advance Bronze IncSince 1969, Advance Bronze Inc. has cast and machine-made custom bronze components in Lodi, Ohio, beginning with hydraulic-cylinder wear rings and growing into an in-house foundry and machine shop serving demanding industrial applications. Its specialty is centrifugal casting across most castable bronze alloys, with the capacity to produce anything from semi-finished bars to close-tolerance bearings and wear plates, including urgent replacement parts when equipment breaks down. The company has grown from 12 employees to more than 65 and operates under an AS9100/ISO 9001-compliant quality management system.LODI, OH
Seville BronzeSince 1953, Seville Bronze has made bronze-based centrifugal castings in Seville, Ohio, producing material to customer specifications for industrial applications. Its 7,500-square-foot foundry supports casting sizes from 3 to 40 inches, while a separate 20,000-square-foot machining operation handles CNC work and secondary operations. The company is ISO 9001:2015 registered and ships products worldwide.SEVILLE, OH
Superior Bronze CorporationFor more than 90 years, Superior Bronze Corporation has been an Erie foundry known for making sand castings for industrial, commercial, and military customers. Its in-house machining lets the company take parts from rough castings through finished forms, while its quality program is structured around military and other customer specifications.ERIE, PA