It is one of the many lean production methods identifying and reducing waste in a manufacturing process. It is a tool to reduce the amount of the time it takes to change from running one process in an operation to running another. Further, improving cycle time in a process, SMED can reduce costs and increase flexibility within a process. The “single minute” title refers to the goal of reducing the changeover time to single-digit minutes, from a maximum of nine minutes down to one.
Single-minute Digit exchange of die (SMED)