Seventy-Plus Years of Precision
A single-source machine shop built on close-tolerance discipline, in-house engineering, and a reputation that's outlasted three generations of manufacturing trends.
Founded in Troy. Built on Difficult Parts.
Lonero Engineering was founded in 1951 and has operated for over seven decades from Troy, Michigan. What started as a specialized machine shop has grown into a single-source partner for companies that need parts other shops turn away — tight tolerances, unusual geometries, and applications where failure isn't an option.
Today, Lonero runs from an 18,000 sq. ft. facility equipped to take a part from a customer-supplied drawing — or a concept designed in-house to customer specifications — all the way through to a finished, inspected component.
Single-Source, Start to Finish
Design & Engineering
We work from customer-supplied drawings or design parts in-house to spec — giving customers one point of contact from concept to part.
Six Capabilities, One Roof
Turning, milling, grinding, laser etching, inspection, and deep rolling — every step under one roof in Troy, Michigan.
ISO 9001:2015 Compliant
Every part is produced and inspected under a quality system built for close-tolerance, mission-critical applications.
Global Reach, Michigan Roots
Our global headquarters in Troy, Michigan houses sales, design, engineering, and manufacturing under one roof. Regional support offices in Saltillo (Mexico), Sao Paulo (Brazil), Tokyo (Japan), Nanjing (China), Seoul (South Korea), and Hong Kong put us close to customers across North America, South America, Europe, Asia, and Africa.
See Markets We Serve