How much can you produce in 90 days? Answer in one minute
The calculator compares machine capacity with the capacity of the single-source critical component and tells you which one binds. The gap with the “declared” capacity explains why the numbers on paper and the real ones diverge. Everything runs in the browser: no data leaves the page.
Part of the program The invisible Arsenal
How many parts you can deliver in 90 days, and what stops you
Seven numbers a production manager knows by heart. The result is the lower of machine capacity and single-source component capacity: the second one almost always binds.
Good parts one line makes in a full shift
How many shifts actually run
Net of holidays, planned stops, leave
Parts reworked or thrown away, in percent
Finished parts covered by the component already in house
From today’s order to the first delivery
Finished parts covered per day, at steady state
It is not the machines. It is the single-source supplier: 120 days of lead time, and stock covers about 10 days of production. In between, the line stands still.
Assumptions
- Machine capacity = nominal per shift × shifts × working days × (1 − scrap).
- Component capacity = stock + supply rate × useful days after the first delivery, within the 90.
- One critical component: if you have more than one, the worst one counts. No added shift, no hiring, no second source within 90 days.
- A surface-level estimate, built to tell you which number to ask for first. The real number comes from the supplier sheet and the production log.
The calculator is the miniature version of the production capacity map the series talks about: seven numbers a production manager knows by heart, and that almost never sit in the same sheet. Why it matters, and the six data points to keep ready to answer a customer within an hour, are in How much can you produce in 90 days? The question your customer will ask in 2027.
If the binding constraint is the supplier, the next step is the single-source supplier map, one row per component with country of origin and qualified alternative. If you want to contribute to the first dataset on the visibility of Italy’s supply chain, the 90-day survey asks ten anonymous questions, in three minutes.