Bulk Solids, Mining, Aggregates & Material Processing worked example

Truck Loadout Time at 14% spotting, weighing and tarping allowance: a worked example

Push spotting, weighing and tarping allowance up to 14% and the picture changes. This example computes every intermediate figure at that operating point. a plant team is reviewing truck loadout time for bulk solids, mining, aggregates, and material processing and needs a clear truck loadout time for production, quality, capacity, maintenance, purchasing, or costing decisions

The inputs for this scenario

  • Tonnage to load into the truck: 1,200 tons (unchanged)
  • Loadout conveyor or chute fill rate: 150 tons / hr (unchanged)
  • Spotting, weighing and tarping allowance: 14 % (raised for this scenario; the documented default is 12)

Working through the calculation

  • Applying the documented formula (Base truck loadout time = truck loadout time workload รท truck loadout time completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 9.12 hr for truck loadout time, the number this scenario is built around.
  • At this operating point the engine returns 8 hr for base truck loadout time.
  • At this operating point the engine returns 14 % for truck loadout time allowance.
  • At this operating point the engine returns 150 pieces / min for truck loadout time completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where spotting, weighing and tarping allowance sits at 12% and the headline result is 8.96 hr, this scenario comes in 1.79% above the baseline at 9.12 hr.
  • It computes the total time to load a truck by dividing tonnage by the loadout fill rate and then adding a percentage allowance for spotting, weighing, and tarping. 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

  • Truck Loadout Time: 9.12 hr (headline result)
  • Base truck loadout time: 8 hr
  • Truck Loadout Time allowance: 14 %
  • Truck Loadout Time completion rate: 150 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.