This make the production time get higher, reduce life of component and wastes resource. The over processing muda caused by loss of standard operation routine, misunderstanding process, poor of modernization and development. This problem can be solved by using suitable processes( prevent overly complex machinery or processes if possible), utilizing those processes that satisfy consumers standards and expectation.
Overproduction occurs when the products is made too much or too early that out of customer requirement. Overproduction is the most dangerous of all of the seven mudas. It creates enormous number of inventory, require too much space and cost money. Using MRP push more than Kanban pull, spending long lead time, lack of supplier connections and consumers focus are the major cause of this muda. The appropriate solutions for this case are balance supply and requirement, produce per actual demand instead of forecasting sales and consume Just-in-time(JIT) manufacturing