Otter Tail Corp.'s BTD Manufacturing Inc. subsidiary has purchased Impulse Manufacturing of Georgia for $30.5 million, the company said.

The deal gives the BTD metal-working outfit in Detroit Lakes $27 million in fresh annual revenue and helps it expand into the southeastern part of the country.

Impulse is a high-tech metal fabricator about 30 miles outside of Atlanta. All 220 employees will be retained, with the exception of the retiring Ron Baysden, who founded Impulse and served as its president.

"BTD's reputation and its management team provided me with the confidence that [the sale] was the right decision," Baysden said in a statement.

BTD President Paul Gintner said he was delighted with the acquisition. "Bringing our two organizations together will put us in a strong position to serve our customers."

BTD has 820 employees in Detroit Lakes and Lakeville, and in Washington, Ill. The metal fabrication company does work from welding and machining to prototyping and stamping.

The company is part of the publicly traded Otter Tail Corp., which owns electric utility and manufacturing businesses.