Tube, Pipe & Profile Forming worked example

Welded Tube Line Speed at 99% line efficiency and uptime: a worked example

What does the result look like when line efficiency and uptime reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when welded tube line speed in tube, pipe and profile forming is being committed and you need a throughput number you can defend.

The inputs for this scenario

  • Tube produced in the run: 1,200 units (unchanged)
  • Mill runtime: 8 hr (unchanged)
  • Line efficiency / uptime: 99 % (raised for this scenario; the documented default is 90)

Working through the calculation

  • Applying the documented formula (Raw welded tube line speed = completed output รท runtime) to the inputs above produces each figure below.
  • At this operating point the engine returns 149 ft / min for effective throughput, the number this scenario is built around.
  • At this operating point the engine returns 150 ft / min for raw throughput.
  • At this operating point the engine returns 99 % for efficiency.
  • At this operating point the engine returns 8 hr for runtime.

How this compares with the baseline

  • Against the tool's baseline example, where line efficiency and uptime sits at 90% and the headline result is 135 ft / min, this scenario comes in 10% above the baseline at 149 ft / min.
  • A figure at this level is achievable when line efficiency and uptime is genuinely sustained, not just peaked for a shift. The efficiency factor here is a single blended number; it does not break out weld defects, coil changes, sizing-stand adjustments, or accumulator dropout, so it tells you how much you lost, not why.

Results at a glance

  • Effective throughput: 149 ft / min (headline result)
  • Raw throughput: 150 ft / min
  • Efficiency: 99 %
  • Runtime: 8 hr

Run it with your numbers

  • Every input above is editable in the live Welded Tube Line Speed calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.