June 29 (Reuters) - Circor International said on Thursday KKR & Co had raised its offer for the industrial machine maker to $56 per share in cash from $51.

The offer also includes a ticking fee of $1 per share if the deal does not close by October, with the actual amount accruing on a prorated daily basis between November until December.

The revised offer comes a day after private equity firm Arcline Investment Management topped KKR's bid. (Reporting by Nathan Gomes in Bengaluru; Editing by Sriraj Kalluvila)