Plastics Extrusion - Pipe, Film & Profile worked example

Haul-Off Speed at 68% haul-off efficiency: a worked example

Suppose haul-off efficiency falls to 68%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate practical haul-off speed from good footage, elapsed minutes, and an allowance for slippage, trim, or speed loss.

The inputs for this scenario

  • Good product length pulled: 1,500 ft (held at the documented default)
  • Puller run time: 60 min (held at the documented default)
  • Haul-off efficiency: 68 % (the input this scenario stresses; the baseline uses 94)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw haul-off speed = good pulled length รท elapsed puller time.
  • Practical haul-off speed works out to 17 ft / min at these inputs, and this is the headline figure for the scenario.
  • Calculated haul-off speed works out to 25 ft / min at these inputs.
  • Haul-off efficiency works out to 68 % at these inputs.
  • Elapsed puller time works out to 60 min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where haul-off efficiency sits at 94% and the headline result is 23.5 ft / min, this scenario comes in 27.66% below the baseline at 17 ft / min.
  • It computes the raw haul-off speed from good length over elapsed time, then scales it by an efficiency factor to give a practical, plannable take-off speed. 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

  • Practical haul-off speed: 17 ft / min (headline result)
  • Calculated haul-off speed: 25 ft / min
  • Haul-off efficiency: 68 %
  • Elapsed puller time: 60 min

Run it with your numbers

  • To rerun this with your own numbers, open the live Haul-Off Speed calculator, set haul-off efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.