Industrial Fans, Blowers & Air Movement Equipment worked example

Sheet Metal Housing Yield at 99% target housing first-pass yield: a worked example

Push target housing first-pass yield up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when tracking housing fabrication, welding, grinding, leak checks, fit-up, paint readiness, or scrap performance.

The inputs for this scenario

  • Accepted fan housings first pass: 92 housings (unchanged)
  • Total housings fabricated: 100 housings (unchanged)
  • Target housing first-pass yield: 99 % (raised for this scenario; the documented default is 96)

Working through the calculation

  • Applying the documented formula (Sheet metal housing yield = accepted fan housings first pass ÷ total housings fabricated × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 92 % for sheet metal housing yield, the number this scenario is built around.
  • At this operating point the engine returns 7 points for housing yield gap to target.
  • At this operating point the engine returns 92 count for accepted fan housings first pass.
  • At this operating point the engine returns 100 count for total housings fabricated.

How this compares with the baseline

  • Against the tool's baseline example, where target housing first-pass yield sits at 96% and the headline result is 92 %, this scenario lands almost exactly on the baseline at 92 %.
  • It computes the percentage of fan housings accepted on the first pass and the point gap between that yield and your target. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Sheet metal housing yield: 92 % (headline result)
  • Housing yield gap to target: 7 points
  • Accepted fan housings first pass: 92 count
  • Total housings fabricated: 100 count

Run it with your numbers

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

Last reviewed 2026-05-12.