Abrasive Blasting, Shot Peening & Surface Prep worked example

Blast Cabinet Load Capacity at 63% cabinet uptime: a worked example

Suppose cabinet uptime falls to 63%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate accepted parts per shift from cabinet load size, cycle count, uptime, and first-pass acceptance.

The inputs for this scenario

  • Parts per cabinet load: 18 parts / load (held at the documented default)
  • Cabinet loads per shift: 22 loads (held at the documented default)
  • Cabinet uptime: 63 % (the input this scenario stresses; the baseline uses 88)
  • First-pass acceptance: 96 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross cabinet capacity = parts per load × cabinet loads per shift.
  • Accepted cabinet output works out to 240 parts at these inputs, and this is the headline figure for the scenario.
  • Gross cabinet capacity works out to 396 parts at these inputs.
  • Uptime loss works out to 147 parts at these inputs.
  • Rejected/reblast parts works out to 9.98 parts at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where cabinet uptime sits at 88% and the headline result is 335 parts, this scenario comes in 28.41% below the baseline at 240 parts.
  • It multiplies parts per load by loads per shift for gross capacity, then derates by cabinet uptime and first-pass acceptance to give accepted output. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Accepted cabinet output: 240 parts (headline result)
  • Gross cabinet capacity: 396 parts
  • Uptime loss: 147 parts
  • Rejected/reblast parts: 9.98 parts

Run it with your numbers

  • To rerun this with your own numbers, open the live Blast Cabinet Load Capacity calculator, set cabinet uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.