Specialty Films, Membranes & Barrier Materials worked example

Slitting Capacity at 99% slitter uptime: a worked example in specialty films, membranes & barrier materials

Push slitter uptime up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when slitting capacity in specialty films, membranes and barrier materials is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Web widths slit per slitter cycle: 4 units / cycle (unchanged)
  • Slitter cycles available in the period: 480 cycles (unchanged)
  • Slitter uptime (share of scheduled run time): 99 % (raised for this scenario; the documented default is 90)
  • First-pass slit-roll yield: 97 % (unchanged)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where slitter uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • It computes good (salable) slitting capacity as gross capacity multiplied by slitter uptime and first-pass slit-roll yield, and breaks out the downtime and yield losses. 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

  • Good slitting capacity: 1,844 units (headline result)
  • Gross slitting capacity: 1,920 units
  • Slitting capacity downtime loss: 19.2 units
  • Slitting capacity yield loss: 57.02 units

Run it with your numbers

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

Last reviewed 2026-05-12.