6 Jun
2018

How to identify reject types and improve OEE

How to identify the types of reject and improve OEE with TileBoard and TileConnect.

Lean Manufacturing
How to identify reject types and improve OEE

While there are many causes of factory rejects, here are five common categories for rejects and wasted parts in manufacturing.

 

1 - Technical work instructions

Errors in technical work instructions could lead to human error from following false instructions. These errors take a variety of forms, including the following: machines could be misused, parts could be assembled in the wrong order or the wrong way, resulting in damaged components. The solution for this problem would be improving the quality of the work instructions by getting feedback from the employees as they are the ones who must follow the work instructions.

2 - Employee’s level of skill

Training employees on the proper use of equipment and proper handling of components is a very important part of manufacturing. An employee who knows how to do their job properly will not only reduce potential human error, but will also be able to spot potential problems before they arise. Having well trained employees is a major asset when it comes to problem solving and reducing rejects.

3 - Misuse of machines

One “category” of errors that can occur from both poor work instructions and lack of employee training is the improper use of machines. This can happen in the form of misaligned machines, improper calibration, and misuse of tools. These errors can be improved by knowing how to use the machines properly in order to get the best quality product.

 

4 - Malfunctioning equipment

Malfunctioning equipment occurs when equipment fails suddenly and can be caused by misuse of machines as well as use over time. Every piece of machinery is expected to fail over time, however scheduled maintenance and proper care can prolong the life and reduce downtimes and problems with the equipment.

Header_blogue_1920x800_TB_desktop_screen_factory

 

5 - Miscellaneous

There are several other causes of rejects, many of which are more task and industry - specific. These “miscellaneous” causes are most often explained by looking at why the part does not meet the standards and then problem solving fix the error.

 

While most will fall under these 5 broad categories, there are of course more types of rejects, some of which are more difficult to diagnose. That being said, knowing these main types allows proper planning; improving the time, money, and labor spent on production.

 

Want to learn more?
Download the ebook
Related blog articles

Related articles

Back to the blog
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
8
Oct 2019

Types de gaspillages dans le lean manufacturing - le gaspillage dû au sur-traitement

French
27
Mar 2020

Ce que vous devez savoir sur le monitoring de la production en 2020

French
17
Sep 2019

Types de gaspillages dans le lean manufacturing - le gaspillage dû à l'attente

French

Related articles

Back to the blog
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
30
Jul 2024

Qu'est-ce que la cadence dans le secteur manufacturier

À l’aide d’exemples concrets et d’informations pratiques, découvrez pourquoi calculer et monitorer la cadence sont votre voie vers une production optimisée.

French
3
Jul 2024

L’industrie 4.0 : l'avenir de l'efficacité opérationnelle avec Worximity

French
3
Jul 2024

Comment analyser la cadence

La cadence est une mesure importante des performances de l’usine. Non seulement elle indique si l'usine peut répondre à la demande des clients, mais elle constitue également un indicateur de l'efficacité globale de l'usine.

French