Tooling, Fixtures, Dies & Mold Economics worked example

End-Of-Life Tooling Reserve at 99% expected machine uptime: a worked example

This scenario runs the end-of-life tooling reserve calculation on the strong side: 99% expected machine uptime, with every other input held at its documented default. Use it when end-of-life tooling reserve in tooling, fixtures, dies and mold economics is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Good parts produced per press cycle: 4 units / cycle (unchanged)
  • Remaining tool life in cycles: 480 cycles (unchanged)
  • Expected machine uptime: 99 % (raised for this scenario; the documented default is 90)
  • Expected first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross end-of-life tooling reserve capacity = end-of-life tooling reserve output per cycle × available end-of-life tooling reserve cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good end-of-life tooling reserve capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross end-of-life tooling reserve capacity.
  • At this operating point the engine returns 19.2 units for end-of-life tooling reserve downtime loss.
  • At this operating point the engine returns 57.02 units for end-of-life tooling reserve yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where expected machine uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • Use it when a tool approaches its rated cycle life and you must size a last-time-buy, service-parts run or bridge quantity. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Good end-of-life tooling reserve capacity: 1,844 units (headline result)
  • Gross end-of-life tooling reserve capacity: 1,920 units
  • End-of-life tooling reserve downtime loss: 19.2 units
  • End-of-life tooling reserve yield loss: 57.02 units

Run it with your numbers

  • Every input above is editable in the live End-Of-Life Tooling Reserve calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.