Precision Springs, Stampings & Micro-Formed Components worked example

Coil Feed Yield at 99% target coil feed yield rate: a worked example

This scenario runs the coil feed yield calculation on the strong side: 99% target coil feed yield rate, with every other input held at its documented default. Use it when coil feed yield in precision springs, stampings and micro-formed components needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Good micro-formed parts from the coil feed: 8 count (unchanged)
  • Total parts fed from the coil: 250 count (unchanged)
  • Target coil feed yield rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Coil feed yield rate = coil feed yield count ÷ total coil feed yield population × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for coil feed yield rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for coil feed yield gap to target.
  • At this operating point the engine returns 8 count for coil feed yield count.
  • At this operating point the engine returns 250 count for total coil feed yield population.

How this compares with the baseline

  • Against the tool's baseline example, where target coil feed yield rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • Use it during setup validation, first-article checks and run monitoring on coil-fed stamping and forming lines. 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

  • Coil feed yield rate: 3.2 % (headline result)
  • Coil feed yield gap to target: 95.8 points
  • Coil feed yield count: 8 count
  • Total coil feed yield population: 250 count

Run it with your numbers

  • Every input above is editable in the live Coil Feed Yield calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.