Scrap rate
Concept
The share of produced units that cannot be sold or reworked and are discarded. It is a basic quality measure and also part of the quality factor in OEE.
Description
The scrap rate is the share of produced units that are discarded because they cannot be sold or reworked. It is calculated as scrapped units divided by total units produced, usually per product, line or shift. It shows the material, time and energy that went into parts that earn nothing.
Scrap should be told apart from rework, where a part is repaired and sold, and from the yield of a process, which looks at good output compared with input. Scrap is also the quality factor in OEE. To lower it, teams record the reasons for each scrapped part and use methods such as root cause analysis, poka-yoke and standard work. The first step is reliable counting, because many plants underestimate scrap that is thrown away without being logged.
| Type | Concept |
|---|---|
| Aussi appelé | Ausschussquote, Scrap, Ausschuss, Reject rate |
Articles sur Scrap rate (2)
- Scrap Rate in Manufacturing: How to Calculate and Reduce It
· Mirko Peters
Scrap rate in manufacturing is the share of units you throw away. Learn the formula, how scrap differs from rework, what it costs and how to reduce scrap. - Poka-Yoke in Manufacturing: Types, Examples and How to Start
· Mirko Peters
Poka-yoke in manufacturing makes mistakes impossible or visible at once. See the three methods, shop floor examples and five steps to start on one process.
Related to
- iFAKT GmbH · Organisation
- Overall equipment effectiveness (OEE) · Concept
- Poka-yoke · Concept
- 8 wastes of lean · Concept
- Standard work · Concept
- Polaris Analyzer · Produit
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Maintenu par Mirko Peters (Microsoft MVP) · Dernière mise à jour: