Cincinnati Milacron 3-531-3291A CNC Interface Circuit Board Card

Cincinnati Milacron 3-531-3291A CNC Interface Circuit Board Card is a Milacron-branded control card that functions as the interface circuit within Cincinnati Milacron CNC systems; it is also cataloged under the alias 35313291A, ensuring cross-reference across suppliers. Multiple distributors and repair providers describe 3-531-3291A as a Cincinnati Milacron control board or interface card, underscoring its role in the machine's control electronics and signal routing between the CNC controller and ancillary subsystems. The part is marketed and listed by sources such as Zoro and NetComponents under the 3-531-3291A designation, with descriptions specifically calling out its CNC interface circuit board function. This identifier appears in Milacron equipment catalogs and parts databases as a control or interface card, confirming its place in Milacron's legacy CNC architectures.