Welding & Fabrication worked example

Welder Productivity (Operator Factor) at 35% target welder operator factor: a worked example

Push target welder operator factor up to 35% and the picture changes. This example computes every intermediate figure at that operating point. Use it for tier-board reporting on welder productivity and to flag arc-on percentage gaps to the shop target.

The inputs for this scenario

  • Arc-on minutes in the shift: 135 min (unchanged)
  • Available shift minutes: 450 min (unchanged)
  • Target welder operator factor: 35 % (raised for this scenario; the documented default is 30)

Working through the calculation

  • Applying the documented formula (Welder operator factor = arc-on minutes in the shift ÷ available shift minutes × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 30 % arc-on for welder operator factor, the number this scenario is built around.
  • At this operating point the engine returns 5 points for operator factor gap to target.
  • At this operating point the engine returns 135 count for arc-on minutes in the shift.
  • At this operating point the engine returns 450 count for available shift minutes.

How this compares with the baseline

  • Against the tool's baseline example, where target welder operator factor sits at 30% and the headline result is 30 % arc-on, this scenario lands almost exactly on the baseline at 30 % arc-on.
  • It divides arc-on minutes by available shift minutes and multiplies by 100 to give the operator factor, then shows how far that sits from your target. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Welder operator factor: 30 % arc-on (headline result)
  • Operator factor gap to target: 5 points
  • Arc-on minutes in the shift: 135 count
  • Available shift minutes: 450 count

Run it with your numbers

  • Every input above is editable in the live Welder Productivity (Operator Factor) calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.