Cincinnati Milacron 3-531-3513A is a Randtronics processor/control board used as the main CPU module in certain Cincinnati Milacron CNC control systems. It is commonly sold as part of a multi-board stack that includes the 3-531-3581A, and listings sometimes reference the 5-533-0018G alongside it. This board is associated with older Milacron machines and is described in dealer inventories as the 3-531-3513A processor board for a 3000-series configuration.
