Wire Drawing & Rod Processing worked example

Draw Speed Output at 65% line utilization efficiency: a worked example

Suppose line utilization efficiency falls to 65%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Draw speed output is the effective linear speed at which a drawing line actually delivers finished wire once real-world stoppages are counted, expressed in feet per minute.

The inputs for this scenario

  • Wire drawn per shift: 1,200 units (held at the documented default)
  • Machine running time: 8 hr (held at the documented default)
  • Line utilization efficiency: 65 % (the input this scenario stresses; the baseline uses 90)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw draw speed output = completed output รท runtime.
  • Effective throughput works out to 97.5 ft / min at these inputs, and this is the headline figure for the scenario.
  • Raw throughput works out to 150 ft / min at these inputs.
  • Efficiency works out to 65 % at these inputs.
  • Runtime works out to 8 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where line utilization efficiency sits at 90% and the headline result is 135 ft / min, this scenario comes in 27.78% below the baseline at 97.5 ft / min.
  • It divides finished output by runtime to get raw draw speed, then multiplies by line utilization efficiency to get the effective speed you can schedule against. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Effective throughput: 97.5 ft / min (headline result)
  • Raw throughput: 150 ft / min
  • Efficiency: 65 %
  • Runtime: 8 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Draw Speed Output calculator, set line utilization efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.