Fastener Manufacturing & Thread Rolling worked example

Torque Test Capacity at 99% torque tester uptime: a worked example

What does the result look like when torque tester uptime reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when planning drive torque, thread-forming torque, prevailing torque, breakaway torque, or torque-tension test workload.

The inputs for this scenario

  • Torque tests per fixture cycle: 1 tests / cycle (unchanged)
  • Planned tester cycles: 180 cycles (unchanged)
  • Torque tester uptime: 99 % (raised for this scenario; the documented default is 90)
  • Expected torque-test pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross torque-test capacity = tests per cycle × planned tester cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 173 units for good output capacity, the number this scenario is built around.
  • At this operating point the engine returns 180 tests for gross torque-test capacity.
  • At this operating point the engine returns 1.8 tests for tester downtime loss.
  • At this operating point the engine returns 5.35 tests for failed or retest allowance.

How this compares with the baseline

  • Against the tool's baseline example, where torque tester uptime sits at 90% and the headline result is 157 units, this scenario comes in 10% above the baseline at 173 units.
  • A figure at this level is achievable when torque tester uptime is genuinely sustained, not just peaked for a shift. It assumes uptime and yield are stable averages; a single fixture jam or a bad lot can swing actual output well away from the estimate.

Results at a glance

  • Good output capacity: 173 units (headline result)
  • Gross torque-test capacity: 180 tests
  • Tester downtime loss: 1.8 tests
  • Failed or retest allowance: 5.35 tests

Run it with your numbers

  • Every input above is editable in the live Torque Test Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.