Longstanding Tradition of Quality Longstanding Tradition of Quality As an established metalworking company in Dayton, Hartzell Manufacturing has a longstanding tradition as a producer of high-quality metal components. Founded by Forrest and Bill Hartzell in 1939, the Company has always been at the forefront of technological advances in the fabrication industry. Hartzell’s tradition of quality has continued since David Vickroy purchased the Company in 1974. As the President of Hartzell David has ensured that the Company stays at the technological forefront of the fabrication industry. Adopting CNC fabrication, machining, and powder coating technology in the mid 80s has kept Hartzell ahead of the curve. Advanced equipment technology combined with a dedicated staff makes Hartzell the right choice for all of your fabrication and machining needs.