Batch size calculation using fixed batch time
This example explains the calculation mode for a fixed batch time.
If you daily operating time is 20 hours and the % allocated for changeovers is 10%:
The daily time allocated to change over is: 20 x 60 x 0.10 = 120 minutes
If each change over lasts 30 minutes:
It will be possible to change over: 120 / 30 = 4 times per the day.
The remaining time to produce is 20 x 60 - 120 (Time Allocated for Change Over) = 1080 minutes (or 1 - 10% = 90% of 20h). During this time the line is going to produce 4 batches (because we can change over 4 times during the day).
The batch time is: 1080 / 4 = 270 minutes
If the actual production cycle time of the line is 30 seconds.
The batch quantity is: 270 x 60 / 30 = 540 pieces.
 |
|
|
|
|
Please rank this page by clicking on the stars.
