Circular Economy, Recycling & Remanufacturing worked example

Teardown Cycle Time at 32% diagnostics, fastener, cleaning, and staging allowance: a worked example

What does the result look like when diagnostics, fastener, cleaning, and staging allowance reaches 32%? The full calculation is worked below with real intermediate numbers. a team needs to plan shift capacity, teardown cells, and harvested-part flow for a teardown batch

The inputs for this scenario

  • Units queued for teardown: 180 units (unchanged)
  • Teardown completion rate: 0.42 units / min (unchanged)
  • Diagnostics, fastener, cleaning, and staging allowance: 32 % (raised for this scenario; the documented default is 28)

Working through the calculation

  • Applying the documented formula (Base teardown cycle time = units queued for teardown รท teardown completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 566 min for required teardown cycle time, the number this scenario is built around.
  • At this operating point the engine returns 429 min for base teardown cycle time.
  • At this operating point the engine returns 32 % for diagnostics, fastener, cleaning, and staging allowance applied.
  • At this operating point the engine returns 0.42 pieces / min for teardown completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where diagnostics, fastener, cleaning, and staging allowance sits at 28% and the headline result is 549 min, this scenario comes in 3.12% above the baseline at 566 min.
  • A figure at this level is achievable when diagnostics, fastener, cleaning, and staging allowance is genuinely sustained, not just peaked for a shift. It assumes a representative average core condition; a batch with unusually seized or corroded units will exceed the modeled allowance.

Results at a glance

  • Required teardown cycle time: 566 min (headline result)
  • Base teardown cycle time: 429 min
  • Diagnostics, fastener, cleaning, and staging allowance applied: 32 %
  • Teardown completion rate: 0.42 pieces / min

Run it with your numbers

  • Every input above is editable in the live Teardown Cycle Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.