Calculation
| Summary | - The five longest-running jobs ran about 18,000 press hours in twelve months, at an average cycle of 30 seconds.
- Taking one second off each cycle frees about 600 of those hours per year.
- Orders fill 70 percent of them, by our assumption, which is 420 hours.
- At $55 per filled hour, that is about $23,100 per year.
|
| Press hours freed per year on the longest-running jobs | 18,000 press hours x 1 second in every 30 = 600 |
| Freed hours that an order fills | 600 hours x 70 percent = 420 |
| What fixing it could save per year | 420 hours x $55 per hour = $23,100 |
Not counted
- The electricity a shorter cycle saves on each part is small and is not counted.
- Colder or faster water and new cooling channels are not counted: the figure needs neither.
- The plant's other jobs are not counted, though the same trial works on them.
- The paperwork for a customer's approval, where a part needs one, is not priced.
- The parts from each failed step are scrap, a few cycles' worth per job, and are not priced.
Illustrative sample. The plant, the walk and the footage are synthetic.