Different time :
||Planned operating time
||Total time of the measurement period
||Planned production time
||Possible time of equipment utilization
||Schedule operating time
||Net operating time
||Routing time allocated to the entire output produced
||Fully production time
||Routing time allocated at the sold production
6 sources of loss:
Performance losses can be classified into 6 sources.
Failures: This is all the losses related to equipment failure (electrical, mechanical, automation, …)
Organisation: Organizational defects are the cause of many performance losses. These may be: lack of staff, lack of material, waiting information, waiting removal of the finished products, …
Micro stops: These are the short stoppages difficult to quantified. This is often a cause of significant performance loss. They are found in the rate of loss.
Slowdown and under speed: This is the difference between the theoretical rate and the actual rate. This is often a result of wrong settings or an optimistic view of the potential rate of equipment.
Production start: These are losses related to setting for new production order, the test for new pieces, the starting of a new team …
Quality problems: These are all scraps and re-manufactured parts.