1/28/2023 0 Comments 7 deadly wastes![]() ![]() Defects - Inspecting and quarantining inventory takes time and costs money.Workplace ergonomics assessment should be conducted to design a more efficient environment. Unnecessary motion - Resources are wasted when workers have to bend, reach or walk distances to do their jobs.Excessive inventory wastes resources through costs of storage and maintenance.Inappropriate processing - Overly elaborate and expensive equipment is wasteful if simpler machinery would work as well.Transportation - Moving a product between manufacturing processes adds no value, is expensive and can cause damage or product deterioration.According to some estimates, as much as 99 percent of a product's time in manufacture is actually spent waiting. Instead, the flow of operations should be smooth and continuous. Waiting - Processes are ineffective and time is wasted when one process waits to begin while another finishes.Overproduction - Manufacture of products in advance or in excess of demand wastes money, time and space. ![]() The categories are an integral part of the TPS (known as lean production in North America).įollowing are the seven wastes, as categorized by Taiichi Ohno: The seven wastes are categories of unproductive manufacturing practices identified by Taiichi Ohno, the father of the Toyota Production System (TPS). ![]()
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