About Us

National Peening, a member of the Sinto Group, offers surface enhancement solutions for a wide range of part sizes and configurations. From the smallest springs and pins to single components weighing up to 30,000 lbs. National Peening utilizes shot peening cabinet enclosures as large as 14′ x 14′ x 16′ and many other sizes of wheel and air blast peening equipment. We are capable of setups to provide a workable, reliable, economical solution for your application.

History – Sinto

1934 – Sintokogio, LTD. located in Nagoya, Japan, has been a long-time leading company in surface treatment, manufacturing wheel blasting, air blasting, mass finishing, brush finishing, and micro blasting machines. Sinto continues to expand its presence across the core business segments of Surface Treatment, Foundry, Environmental Equipment, Material Handling, and other Special Equipment. The Global Sinto Network now extends to a group of 48 companies in 12 countries and regions, with 3,839 employees worldwide.

History – National Peening

1986 – National Peening was originally founded in Statesville, NC USA to provide quality shot peening services to the Aerospace, Power Generation, and other industrial markets. Over the next several years National Peening expanded to four additional locations in the USA.

2011 – Sinto America acquired National Peening.

2014 – Sinto America acquired the assets of Technical Metal Finishing, Inc. in Wallingford, CT. TMF is a contract manufacturer that specializes in shot peening and highly technical surface finishing for the Aerospace, Medical, and Power Generation industries.