Do rejected parts count toward inspection capacity?

Yes. Their inspection was completed even when the result was a rejection.

Why are partial cycles excluded?

The model counts only cycles that finish within the window. A partially completed fixture does not add inspected parts.

Should setup appear in both time inputs?

No. Enter setup and stops separately only when they are excluded from the measured repeating cycle.

How do the uptime examples change?

They change recorded setup and stop time. Less usable time lowers uptime, while a stop-free window raises it to 100%.

Quality & Metrology calculator

Inspection Capacity Calculator

Find how many complete inspection cycles fit a station window. Enter parts per cycle, scheduled time, separate stops, the measured full cycle and inspections due.

What this calculator does

Count completed inspections from available time without treating rejected parts as uninspected capacity.

Formula used

Recorded milliseconds = seconds × 1000; usable milliseconds = scheduled milliseconds − stopped milliseconds
Complete cycles = floor(usable milliseconds ÷ cycle milliseconds)
Inspection capacity = parts per cycle × complete cycles; capacity margin = capacity − required inspections
Station uptime = 100 × usable milliseconds ÷ scheduled milliseconds
Usable minutes = usable milliseconds ÷ 60000; unused minutes = (usable milliseconds − complete cycles × cycle milliseconds) ÷ 60000

Inputs explained

Parts Inspected per Cycle: Physical parts completed in one measured inspection cycle.
Scheduled Station Time: Scheduled seconds from timing records, with millisecond resolution.
Setup and Stop Time: Separate stopped seconds from logs, with millisecond resolution.
Complete Inspection Cycle: Full cycle seconds including repeated handling, with millisecond resolution.
Required Inspections: Parts due for this inspection scope within the window.

How to use the result

Best suited to inspection backlog planning, station stop-time review.
The result does not predict product acceptance or defect detection. Overlapping stations, queues and varying inspection scopes require a separate schedule.

Current U.S. benchmarks

U.S. manufacturing runs at 75.7% of capacity (Federal Reserve, Aug 2026). New factory orders are up 8.5% year over year (Census).

Common questions

Do rejected parts count toward inspection capacity? Yes. Their inspection was completed even when the result was a rejection.
Why are partial cycles excluded? The model counts only cycles that finish within the window. A partially completed fixture does not add inspected parts.
Should setup appear in both time inputs? No. Enter setup and stops separately only when they are excluded from the measured repeating cycle.
How do the uptime examples change? They change recorded setup and stop time. Less usable time lowers uptime, while a stop-free window raises it to 100%.

Last reviewed 2026-10-06.