Wire, Cable & Conductor Manufacturing worked example

Tensile Test Capacity at 65% tensile tester uptime: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop tensile tester uptime to 65%, then walk the calculation through step by step. Tensile test capacity is the number of valid tensile-strength specimens a wire and cable lab can actually deliver in a planning window, after accounting for tester downtime and specimens that fail the test setup.

The inputs for this scenario

  • Specimens pulled per test cycle: 4 units / cycle (held at the documented default)
  • Available test cycles in the window: 480 cycles (held at the documented default)
  • Tensile tester uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Valid specimen yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross tensile test capacity capacity = units per cycle × available cycles.
  • Good output capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross capacity works out to 1,920 units at these inputs.
  • Uptime loss works out to 672 units at these inputs.
  • Yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where tensile tester uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 27.78% below the baseline at 1,211 units.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to tensile tester uptime, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It treats uptime and yield as flat percentages, so it won't capture a calibration outage or a bad-grip batch that clusters losses, and it assumes cycle time is constant across wire gauges.

Results at a glance

  • Good output capacity: 1,211 units (headline result)
  • Gross capacity: 1,920 units
  • Uptime loss: 672 units
  • Yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Tensile Test Capacity calculator, set tensile tester uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.