Downtime calculator for management
What does unplanned downtime cost you today?
A spindle failure costs more than the repair. The machine stands still, orders slip, and often more than just the bearing suffers. Set the sliders to your figures. You see the result immediately.
Where to find the figures
Five values you probably already have.
If you do not know a value exactly, use a cautious estimate. The result will then tend to be too low rather than too high.
| Value | Where to find it |
|---|---|
| Cost per hour of downtime | Machine hourly rate from your costing. If orders wait or are lost, add the lost contribution margin per hour. |
| Unplanned downtime hours | Maintenance log, production data acquisition (MES) or machine logbook for the last two to three years. Count only downtime caused by the spindle and spindle bearings. |
| Number of unplanned spindle failures | Invoices from your spindle service provider and the machine manufacturer. An average over several years is more meaningful than a single year. |
| Extra cost per failure | The difference between an unplanned and a planned repair: rush surcharges, express shipping, consequential damage to spindle, tool and workpiece, extra shifts to catch up. |
| Avoidable share | Your own estimate. How many of the failures could you have moved into a maintenance window if you had known about them weeks in advance? |
The calculator deliberately states neither a price for our system nor any savings that we promise. How early the system warns on your machines is shown during the pilot. What a connection costs, we tell you as a concrete figure in the introductory call.
Further reading
The full calculation, step by step.
How to derive downtime costs properly, which items are often forgotten and how to turn them into a business case is explained in the technical article.
Next step