PPE & Infection Control Products worked example

Demand Surge Capacity at 99% sustainable uptime under surge running: a worked example in ppe & infection control products

This scenario runs the demand surge capacity calculation on the strong side: 99% sustainable uptime under surge running, with every other input held at its documented default. Use it when demand surge capacity in ppe and infection control products 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 cycle at max rate: 4 units / cycle (unchanged)
  • Surge cycles available (extra shifts/overtime): 480 cycles (unchanged)
  • Sustainable uptime under surge running: 99 % (raised for this scenario; the documented default is 90)
  • First-pass yield under surge running: 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 sustainable uptime under surge running sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • Use it during a demand spike, an emergency tender, or contingency planning to size how much extra you can genuinely deliver. 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 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.