Falfurrias Capital Partners, a Charlotte-based private equity investment firm, invested $47.9 million in SixAxis LLC, according to a Securities and Exchange Commission filing on Wednesday.

“It’s rare to find a company such as SixAxis that is so well positioned for growth, has a demonstrated history of new product commercialization and is led by an accomplished management team,” said Ken Walker, previous COO of EnPro Industries who will john the SixAxis team as executive chairman.

SixAxis is the holding company for several brands that manufacture products such as bulk loading metal stairs and mobile work platforms. Rob Honeycutt and his partner Fred Harmon founded the company in 2003 in Andrews, South Carolina.

SixAxis has thousands of customers in North America, Europe and Asia. It recently invested over $20 million in capacity expansion, production automation and productivity improvements.

Falfurrias was founded in 2006 by Hugh McColl Jr., former chairman and CEO of Bank of America, and Marc Oken, former CFO of Bank of America.

Companies relying on a Reg D exemption do not have to register their offering of securities with the SEC, but they must file what’s known as a Form D electronically with the SEC after they first sell their securities.

The file can be found here.