Nonwoven Materials & Technical Textiles worked example

Demand Surge Capacity at 99% expected line uptime under surge load: a worked example in nonwoven materials & technical textiles

What does the result look like when expected line uptime under surge load reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when demand surge capacity in nonwoven materials and technical textiles is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Surge output per line cycle at peak rate: 4 units / cycle (unchanged)
  • Cycles available during the surge window: 480 cycles (unchanged)
  • Expected line uptime under surge load: 99 % (raised for this scenario; the documented default is 90)
  • Expected first-pass yield at surge rate: 97 % (unchanged)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where expected line uptime under surge load sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • A figure at this level is achievable when expected line uptime under surge load is genuinely sustained, not just peaked for a shift. It assumes you can sustain peak rate for the whole surge window; thermal limits, fiber supply, or fatigue-driven defects can pull real surge output below the figure.

Results at a glance

  • Good demand surge capacity: 1,844 units (headline result)
  • Gross demand surge capacity: 1,920 units
  • Demand surge capacity downtime loss: 19.2 units
  • Demand surge capacity yield loss: 57.02 units

Run it with your numbers

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

Last reviewed 2026-05-12.