Sterilization & Sterile Barrier Manufacturing worked example

Sterilization Cycle Capacity at 99% sterilizer availability: a worked example

Push sterilizer availability up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when sterilization cycle capacity in sterilization and sterile barrier manufacturing is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Product units loaded per sterilization cycle: 4 units / cycle (unchanged)
  • Sterilizer cycles available in the period: 480 cycles (unchanged)
  • Sterilizer availability (uptime): 99 % (raised for this scenario; the documented default is 90)
  • Load-release first-pass yield: 97 % (unchanged)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where sterilizer availability 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 (releasable) sterile units by multiplying units-per-cycle and available cycles into gross capacity, then derating for sterilizer uptime and load-release first-pass yield. 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 sterilization cycle capacity: 1,844 units (headline result)
  • Gross sterilization cycle capacity: 1,920 units
  • Sterilization cycle capacity downtime loss: 19.2 units
  • Sterilization cycle capacity yield loss: 57.02 units

Run it with your numbers

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

Last reviewed 2026-05-12.