Private equity firm Saw Mill Capital LLC has acquired Janus International Corp.

Temple, Ga.-based Janus manufactures steel roll-up doors for the self-storage industry. Terms of the deal were not disclosed.  Janus expects the deal to help the company grow.

Saw Mill, headquartered in Briarcliff Manor, N.Y., focuses on buying companies with between $40 million and $150 million in revenues. In April, Saw Mill portfolio company Pine Environmental Services LLC bought Ashtead Technology’s North American instrument division.