Metals, Steel, Aluminum & Coil Processing worked example

Edge Trim Loss at 99% line uptime: a worked example in metals, steel, aluminum & coil processing

This scenario runs the edge trim loss calculation on the strong side: 99% line uptime, with every other input held at its documented default. Use it when a slitting line supervisor needs the prime footage that survives edge trim and downtime before committing the schedule.

The inputs for this scenario

  • Prime feet per cycle: 500 ft / cycle (unchanged)
  • Available cycles: 20 cycles (unchanged)
  • Line uptime: 99 % (raised for this scenario; the documented default is 90)
  • Yield after edge trim: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross feet processed = prime feet per cycle × available cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 9,603 ft for good prime feet, the number this scenario is built around.
  • At this operating point the engine returns 10,000 ft for gross feet processed.
  • At this operating point the engine returns 100 ft for uptime loss.
  • At this operating point the engine returns 297 ft for edge trim loss.

How this compares with the baseline

  • Against the tool's baseline example, where line uptime sits at 90% and the headline result is 8,730 ft, this scenario comes in 10% above the baseline at 9,603 ft.
  • Use it when quoting footage on a slit or trimmed order, or when comparing edge-trim scenarios for a fixed coil width. 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 prime feet: 9,603 ft (headline result)
  • Gross feet processed: 10,000 ft
  • Uptime loss: 100 ft
  • Edge trim loss: 297 ft

Run it with your numbers

  • Every input above is editable in the live Edge Trim Loss calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.