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LEAN-MANUFACTURING5 MIN READ

Separate Muda, Mura, and Muri

Distinguish waste, unevenness, and overburden in manufacturing conditions.

Place each condition in the Three Ms bucket it most directly represents. Muda: waste Mura: unevenness Muri: overburden Operators inspect the same label twice because two forms require duplicate signoff. The schedule releases 70 percent of daily orders after 1 p.m. A pallet jack rated for 3,000 lb is routinely loaded to 3,800 lb. Finished parts are moved to a temporary aisle, then moved back two hours later. Monday demand is triple Wednesday demand even though customer due dates are spread through the week. One operator covers two takt-paced stations whenever the second-shift role is vacant. A machine waits 11…

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