Value Stream Mapping (VSM): The Lean Tool That Shows You Exactly Where Your Factory Is Losing Time and Money

A bearing manufacturer in Pune was struggling with a 22-day lead time for a product their customer wanted in 5 days. Management assumed the problem was machine capacity. A 3-day Value Stream Mapping exercise revealed something different: the actual machining time was 47 minutes. The other 21.5 days were waiting — in queues, in batches,

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