Industrial Packaging Materials Manufacturing worked example

Film Extrusion Yield at 99% target yield rate: a worked example

This scenario runs the film extrusion yield calculation on the strong side: 99% target yield rate, with every other input held at its documented default. Use this when reviewing extrusion line performance, tracking scrap from edge trim, gauge variation, gels, or startup waste, and deciding whether corrective action is needed to hit yield targets.

The inputs for this scenario

  • Good film footage produced: 18,500 linear ft (unchanged)
  • Total film footage extruded: 20,000 linear ft (unchanged)
  • Target yield rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Film extrusion yield rate = good film footage produced / total film footage extruded x 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 92.5 % for film extrusion yield rate, the number this scenario is built around.
  • At this operating point the engine returns 6.5 points for gap to target yield.
  • At this operating point the engine returns 18,500 count for good film footage produced.
  • At this operating point the engine returns 20,000 count for total film footage extruded.

How this compares with the baseline

  • Against the tool's baseline example, where target yield rate sits at 95% and the headline result is 92.5 %, this scenario lands almost exactly on the baseline at 92.5 %.
  • Use it at the end of each run or shift to grade a film line and decide whether scrap is within tolerance before releasing the roll set. 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

  • Film extrusion yield rate: 92.5 % (headline result)
  • Gap to target yield: 6.5 points
  • Good film footage produced: 18,500 count
  • Total film footage extruded: 20,000 count

Run it with your numbers

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

Last reviewed 2026-05-12.