The 8 types of waste
When working with Lean there is focus on adding value and minimizing waste. No customers are willing to pay for activities that can be considered waste. Hence it must be minimized.
For many years there were 7 types of waste in Lean Manufacturing. But later some people have added up to 7 new types of waste, making a total of 14.
The normal 7 plus the most common 8th form of waste are presented below.
In Lean language the word "Muda" is used for waste.
- Overproduction
Producing too much, too early and/or too fast.
- Transportation
Unnecessary movement of people or parts between processes.
- Waiting time
People or parts waiting for a work cycle to finish.
- Over processing
Processing beyond the demand from the customers.
- Inventory
Materials parked and not having value added to them.
- Rework
Sorting, repetition or making scrap.
- Motion
Unnecessary movement of people or parts within a process.
- Unexploited knowledge
Failure when it comes to exploiting the knowledge and talent of the employees. |
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Presentation of the different types of waste in Lean
Contents of the 34 slides:
- Introduction to the 8 types of waste.
- Results by reducing waste.
- Presentation of each type of waste - reason, consequence and tool to minimize.
- Waste and implementation of Lean.
- Related Lean tools.
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