Pet Food & Animal Nutrition Manufacturing worked example

Pellet Durability Loss at 99% target maximum durability loss rate: a worked example

What does the result look like when target maximum durability loss rate reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when pellet durability loss in pet food and animal nutrition manufacturing needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Fines and broken pellets after tumbling: 8 count (unchanged)
  • Total pellets in durability test sample: 250 count (unchanged)
  • Target maximum durability loss rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Pellet durability loss rate = pellet durability loss count ÷ total pellet durability loss population × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for pellet durability loss rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for pellet durability loss gap to target.
  • At this operating point the engine returns 8 count for pellet durability loss count.
  • At this operating point the engine returns 250 count for total pellet durability loss population.

How this compares with the baseline

  • Against the tool's baseline example, where target maximum durability loss rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • A figure at this level is achievable when target maximum durability loss rate is genuinely sustained, not just peaked for a shift. The result is only as valid as the test method and sample handling; Holmen and tumbling-box testers give different absolute numbers, so never benchmark a Holmen loss rate against a tumbling-box target.

Results at a glance

  • Pellet durability loss rate: 3.2 % (headline result)
  • Pellet durability loss gap to target: 95.8 points
  • Pellet durability loss count: 8 count
  • Total pellet durability loss population: 250 count

Run it with your numbers

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

Last reviewed 2026-05-12.