Since 1971, Semco Carbon has specialized in custom machining carbon and graphite components, working exclusively with these materials from its Lorain, Ohio facility. Its 45,000-square-foot operation handles everything from prototype and repair work to parts made from raw blocks exceeding two tons, while maintaining nearly 400 tons of graphite inventory for quick production and direct material sales. Semco also purchases obsolete carbon and graphite for reclamation or appropriate disposal.
ISO 9001:2015
Graphite Sales, IncFounded in 1971 by remachining broken steel-mill electrodes, employee-owned Graphite Sales, Inc. now manufactures and processes carbon and graphite products from its 12-acre Nova, Ohio plant. Its CNC machining, material processing, electrode remachining and recycling operations support customers across industries, with sales offices serving locations around the country. The company also purchases used graphite and carbon materials for reprocessing into usable components and granular products.NOVA, OH
Graphite Machining, IncFounded in the Detroit area in 1973, Graphite Machining, Inc. manufactures and precision-machines graphite, carbon, and graphite-composite parts, taking projects from raw material through finished components. Its facilities in Michigan and Pennsylvania include more than 125,000 square feet of manufacturing space and over 150 pieces of automated machining equipment, supporting parts ranging from small heating elements to exceptionally large fabricated assemblies. Through its sister company, Advanced Carbon Technologies, GMI also provides in-house high-temperature purification with purity levels below 5 ppm total ash.TOPTON, PA
NAC Carbon Products, IncWith nearly 60 years of experience in Punxsutawney, NAC Carbon Products manufactures graphite and carbon products, including rods, blocks and granular grades. Its more than 100,000-square-foot facility is equipped for extrusion, baking and graphitization, and the company also handles toll processing of customer-supplied raw material. NAC keeps a substantial inventory of standard rods and blocks while producing custom formulations and cut sizes for specific requirements.ROBESONIA, PA
Shamokin CarbonsShamokin Carbons is a fourth-generation, family-owned carbon and graphite manufacturer that began hauling anthracite coal in Pennsylvania in 1924 and now supplies processed carbon materials internationally. Headquartered in Coal Township, the company’s U.S. and Mexican facilities can process more than 250,000 tons annually, with a long history of developing specialty materials such as its Carb-O-Cite glass additive and graphite pellets. Shamokin Carbons has held ISO 9001:2015 certification since 2016.COAL TOWNSHIP, PA