Founded in Cleveland in 1916 by journeyman machinist Emil P. Hahn, Hahn Manufacturing Company remains a multigenerational domestic manufacturer of large, precision-machined OEM components. Today, Hahn’s third generation is still hands-on, combining large-part capacity with custom service for production and prototype work. The company is ISO 9001:2015 certified and ITAR registered, with lifting capacity up to 50,000 pounds and machining capability for parts up to 200 inches.
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ITAR Registered
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Krenz Precision Machining, IncBuilt by a family of German immigrants in Cleveland, Krenz Precision Machining makes precision-machined components for industrial and commercial manufacturers. The Krenz family began its machining businesses in 1967, joined forces under the Krenz name in the 1970s, and continues to own and operate the company today from its 45,000-square-foot North Royalton facility. Krenz is ISO 9001 certified and supports production from a few hundred pieces to several million, with just-in-time and Kanban stocking options for customers.NORTH ROYALTON, OH
Precise Tool & ManufacturingFounded in 1974, Rochester-based Precise Tool & Manufacturing makes custom CNC-machined and fabricated components for OEMs, from small precision parts to 60-ton, extra-large workpieces. Its 300,000-square-foot factory houses more than 200 CNC machines and a 150-plus-person workforce, including employees with over 40 years of experience. The company supports demanding aerospace and defense work with AS9100 certification, ITAR registration, and an in-house paid CNC training institute that helps carry shop-floor knowledge into the next generation.ROCHESTER, NY
Triangle Machine ProductsFamily-owned and operated for four generations, Triangle Machine Products has remained in business since 1957, building its reputation on integrity, common sense, and hard work. From its 47,000-square-foot Cleveland-area facility, the company makes precision CNC-turned components for OEMs and other manufacturers, supporting both prototype work and high-volume production. Triangle employs 40 people and holds ISO 9001:2015 and IATF 16949:2016 certifications.CLEVELAND, OH
MACH3 MachiningMACH3 Machining brings together three established operations—Hall Machine, Alloy Engineering, and J&J Precision Machining—as an AECO company in Cuyahoga Falls, Ohio. Built on decades of hands-on experience, it is known for taking on oversized industrial components that ordinary machine shops cannot accommodate, serving customers across heavy industry and OEM production. Its work centers on large-part machining, with components handled up to 192 inches in diameter and 50 tons in weight.CUYAHOGA FALLS, OH