Quality & Metrology worked example
Inspection Time at 12% setup and handling allowance: a worked example
What does the result look like when setup and handling allowance reaches 12%? The full calculation is worked below with real intermediate numbers. Use it when adding an inspection job to the schedule and you need an honest time estimate, not an ideal one.
The inputs for this scenario
- Parts to inspect: 120 parts (unchanged)
- Inspection throughput rate: 12 parts / min (unchanged)
- Setup and handling allowance: 12 % (raised for this scenario; the documented default is 10)
Working through the calculation
- Applying the documented formula (Base inspection time = parts to inspect รท inspection rate) to the inputs above produces each figure below.
- At this operating point the engine returns 11.2 min for required inspection time, the number this scenario is built around.
- At this operating point the engine returns 10 min for base inspection time.
- At this operating point the engine returns 12 % for setup and handling allowance applied.
- At this operating point the engine returns 12 pieces / min for inspection rate.
How this compares with the baseline
- Against the tool's baseline example, where setup and handling allowance sits at 10% and the headline result is 11 min, this scenario comes in 1.82% above the baseline at 11.2 min.
- A figure at this level is achievable when setup and handling allowance is genuinely sustained, not just peaked for a shift. A single flat allowance can't capture batch-to-batch variation in fixturing or a mix of easy and hard features, so treat it as a planning estimate, not a time standard.
Results at a glance
- Required inspection time: 11.2 min (headline result)
- Base inspection time: 10 min
- Setup and handling allowance applied: 12 %
- Inspection rate: 12 pieces / min
Run it with your numbers
- Every input above is editable in the live Inspection Time calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.