Municipal Waste Sorting Equipment worked example

Installation Labor at 22% rigging, tie-in, and check-out allowance: a worked example in municipal waste sorting equipment

Suppose rigging, tie-in, and check-out allowance falls to 22%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate millwright and electrician labor minutes for installing or replacing MRF sorting equipment, conveyors, screens, or balers.

The inputs for this scenario

  • Install scope items to set: 40 items (held at the documented default)
  • Items completed per minute by crew: 0.05 items / min (held at the documented default)
  • Rigging, tie-in, and check-out allowance: 22 % (the input this scenario stresses; the baseline uses 30)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base installation labor time = install scope items / crew completion rate.
  • Required installation labor time works out to 976 min at these inputs, and this is the headline figure for the scenario.
  • Base installation labor time works out to 800 min at these inputs.
  • Rigging and tie-in allowance applied works out to 22 % at these inputs.
  • Crew completion rate works out to 0.05 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where rigging, tie-in, and check-out allowance sits at 30% and the headline result is 1,040 min, this scenario comes in 6.15% below the baseline at 976 min.
  • It computes total crew labor time to complete a set of install scope items, scaled by an allowance for rigging, tie-in, and check-out. 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

  • Required installation labor time: 976 min (headline result)
  • Base installation labor time: 800 min
  • Rigging and tie-in allowance applied: 22 %
  • Crew completion rate: 0.05 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Installation Labor calculator, set rigging, tie-in, and check-out allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.