Abrasive Blasting, Shot Peening & Surface Prep worked example
Blast Nozzle Wear Cost at 99% loaded blast duty factor: a worked example
This scenario runs the blast nozzle wear cost calculation on the strong side: 99% loaded blast duty factor, with every other input held at its documented default. a blasting estimator needs to recover nozzle replacement and inspection cost on abrasive jobs with heavy hours
The inputs for this scenario
- Billable on-blast hours: 36 hr (unchanged)
- Nozzle wear cost rate: 3.5 $ / hr (unchanged)
- Loaded blast duty factor: 99 % (raised for this scenario; the documented default is 90)
- Inspection and changeout cost: 25 $ (unchanged)
Working through the calculation
- Applying the documented formula (Nozzle wear subtotal = billable blast hours × nozzle wear rate × loaded blast duty) to the inputs above produces each figure below.
- At this operating point the engine returns 150 $ for nozzle wear cost, the number this scenario is built around.
- At this operating point the engine returns 4.16 $ / hr for cost per blast hour.
- At this operating point the engine returns 125 $ for wear subtotal.
- At this operating point the engine returns 25 $ for changeout cost.
How this compares with the baseline
- Against the tool's baseline example, where loaded blast duty factor sits at 90% and the headline result is 138 $, this scenario comes in 8.19% above the baseline at 150 $.
- Use it when building consumable costs into a blast quote or evaluating whether to replace a nozzle proactively. 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
- Nozzle wear cost: 150 $ (headline result)
- Cost per blast hour: 4.16 $ / hr
- Wear subtotal: 125 $
- Changeout cost: 25 $
Run it with your numbers
- Every input above is editable in the live Blast Nozzle Wear Cost calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.