Single Minute Exchange of Dies (SMED)

Every minute wasted is money forgone. Learn how to reduce time wastage to reduce unnecessary costs.

Single Minute Exchange of Dies (SMED) is a systematic approach to reducing machine set- up and change over times. Originally devised by Shigeo Shingo of Toyota Motor Company in the early 1950’s, this lean technique can dramatically shorten set-up time from hours to minutes.

Set-Up time is the elapsed time from completion of the last part of the previous job until the first part of the next job is made at normal efficiency.

One of the best visual examples of this technique in action can be seen in F1 motor racing via the ‘pit stop routine’ which takes only a few seconds. In that time, new tyres are fitted, fuel refilled and the drivers’ visor cleaned. Imagine what you could achieve if you could utilise the same methodology in your workplace.

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