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LEAN-MANUFACTURING5 MIN READ

Level the Mix Without Ignoring Demand

Apply heijunka logic to choose a leveled production sequence under demand variation.

Monday mix Demand arrives unevenly: 60 oak, 20 walnut, 20 painted. The old habit is to run the biggest batch first. The easier local schedule creates harder system work. Heijunka Level type and quantity over a fixed period Heijunka smooths the signal to the value stream. It reduces the peaks and valleys that cause WIP, waiting, overburden, and quality risk. Batch Oak x60, then walnut x20, then paint x20 Upstream sees rhythm instead of spikes. Do not let a convenient batch become a value-stream shock wave. 01 Pattern 02 Constraint 03 Try Choose the pattern Mix

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