Since 1972, Harrisburg’s Kelley-Tron Machine Co. has made custom components through CNC and manual machining, handling work from design and prototyping through production in-house. The 52-year-old shop is known for short lead times and on-time delivery, with a quality system that includes first-article inspection for new components. Its capabilities also include vapor honing for polishing and refurbishing cast, die-cast, and billet projects.
ISO Compliant
Compliance program
ISO
Quality certification
John Prosock Machine, IncOperating from Pennsylvania since 1982, John Prosock Machine, Inc. makes custom CNC-machined parts and supports projects from prototype through production and assembly. The company grew from John Prosock’s basement into a 9,000-square-foot facility, with particular depth in tight-tolerance work and short lead times across complex industrial applications. John Prosock Machine is ISO 9001:2015 certified and maintains a customer-service approach built around lasting business relationships.332710QUAKERTOWN, PA
LAMJEN, IncSince 1968, Erie-based LAMJEN has made specialty machined components as a contract precision CNC and manual machine shop. Its unusual breadth combines tight-tolerance work and large-diameter turning with fabrication, assembly, and other finishing support through Custom Group Industries, allowing projects to move from prototype to completed component through one manufacturing network. An in-house quality department supports the work under an ISO 9001:2015-certified quality system.ERIE, PA
Hefner Machine and Tool, IncFrom its Hatfield, Pennsylvania shop, Hefner Machine and Tool, Inc. makes precision-machined parts for both short- and long-run production. This full-service job shop can work from CAD files, rough sketches, or worn parts, producing everything from a repaired single component to a high-quantity production run. Its quality procedures are strictly enforced, with a focus on accurate, on-time work.332710HATFIELD, PA
Kyron Tool & Machine Co., IncFamily-owned and operated in Columbus, Kyron Tool & Machine Co., Inc. is known for precision machining work carried out in a 30,000-plus-square-foot facility. The company serves manufacturers with CNC-machined parts, prototyping, and welding projects, ranging from small repairs to large-scale work while emphasizing on-time delivery.COLUMBUS, OH