From our modest beginnings in a garage on Stony Road in Lancaster, to our present 22,500-square-foot facility in Elma, Stony MFG has been providing precision machining services for over 50 years.

We have no tolerance for imperfection and strive to deliver the highest level of quality in all facets of our manufacturing process.

Our Mission Statement

We are committed to continually improving our Quality Management System in order to provide our customers with the highest quality product, and to maintain Stony Manufacturing as a quality leader in the production of precision-machined parts.