Sunnen Celebrates a Century of Innovation in Honing Technology!

Sunnen Products Co. is celebrating its 100-year anniversary, marking a century of pioneering innovations in precision machining. Founded in 1924 by Joseph Sunnen, the company’s origins lie in his development of a custom tool to safely repair cylinder heads, which evolved into the first manual cylinder honing device in 1928. Since then, Sunnen has expanded its offerings, delivering advanced solutions in honing, lapping, deep-hole drilling, and roller burnishing.

Sunnen’s modern honing systems boast precision capable of controlling hole sizes within ten millionths of an inch (0.000010″/0.25 µm). These systems correct geometric errors, ensure better lubrication and sealing, and improve overall performance for gearboxes, hydraulic systems, and more. This technology has helped revolutionize industries ranging from automotive to aerospace, with smoother, quieter, and longer-lasting components.

Sunnen’s global presence includes operations across 12 countries, supported by a network of over 30 authorized distributors. Their commitment to innovation continues to drive end-to-end processing solutions custom-designed to meet the highest production standards.