Eliminating TST based on production hours
Production down time can be used to absorb TST
When a production line is running less than 24h, you can use its production down time to eliminate or reduce the TST by changing the arrival time.
TST <= Down Time
If your TST is shorter than your production down time, you can schedule your arrival time during your down time. You just need to have at least the value of your TST between your arrival time and the start of your production.
TST > Down Time
In this case your TST can be only reduced by the value of your down time. Like in the previous case, you just need to have at least the value of your initial TST between your arrival time and the start of your production. Your arrival time will be during production hours.
Conclusions
- In the first case, your TST is eliminated so your loop and your inventory are reduced by the value of your initial TST.
- In the second case, your TST is reduced by your down time, so your loop and your inventory are reduced by the value of your initial TST minus down time.
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