Cell Therapy & Gene Therapy Equipment worked example

Cryostorage Capacity at 99% expected freezer availability: a worked example

What does the result look like when expected freezer availability reaches 99%? The full calculation is worked below with real intermediate numbers. a manufacturing or storage team needs to know whether cryogenic storage has enough qualified slots for upcoming batches

The inputs for this scenario

  • Qualified cryo positions per storage unit: 3,200 cryo units / freezer (unchanged)
  • Available cryogenic storage units: 6 freezers (unchanged)
  • Expected freezer availability: 99 % (raised for this scenario; the documented default is 96)
  • Usable slot factor after segregation: 82 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross qualified cryostorage positions = qualified positions per unit × available storage units) to the inputs above produces each figure below.
  • At this operating point the engine returns 15,587 cryo units for usable cryostorage capacity, the number this scenario is built around.
  • At this operating point the engine returns 19,200 cryo units for gross qualified cryostorage positions.
  • At this operating point the engine returns 192 cryo units for storage positions unavailable.
  • At this operating point the engine returns 3,421 cryo units for positions reserved or segregated.

How this compares with the baseline

  • Against the tool's baseline example, where expected freezer availability sits at 96% and the headline result is 15,114 cryo units, this scenario comes in 3.12% above the baseline at 15,587 cryo units.
  • A figure at this level is achievable when expected freezer availability is genuinely sustained, not just peaked for a shift. It models capacity as a single pool, but segregation rules can strand slots in the wrong freezer or rack, so real usable capacity may be lower than the math suggests.

Results at a glance

  • Usable cryostorage capacity: 15,587 cryo units (headline result)
  • Gross qualified cryostorage positions: 19,200 cryo units
  • Storage positions unavailable: 192 cryo units
  • Positions reserved or segregated: 3,421 cryo units

Run it with your numbers

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

Last reviewed 2026-05-12.