Bulk Solids, Mining, Aggregates & Material Processing worked example

Powder Flow Rate at 68% target powder flow rate: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop target powder flow rate to 68%, then walk the calculation through step by step. Estimate powder flow rate for powder flow rate for bulk solids, mining, aggregates, and material processing using plant-floor material, production, quality, capacity, or cost inputs.

The inputs for this scenario

  • Powder Flow Rate accepted or affected material: 850 tons (held at the documented default)
  • Total ore, aggregate, powder, sand, gravel, fines, or bulk solid in same period: 1,000 tons (held at the documented default)
  • Target powder flow rate: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Powder Flow Rate = powder flow rate accepted or affected material ÷ total ore, aggregate, powder, sand, gravel, fines, or bulk solid in same period × 100.
  • Powder Flow Rate works out to 85 % at these inputs, and this is the headline figure for the scenario.
  • Powder Flow Rate gap to target works out to -17 points at these inputs.
  • Powder Flow Rate accepted or affected material works out to 850 count at these inputs.
  • Total ore, aggregate, powder, sand, gravel, fines, or bulk solid in same period works out to 1,000 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target powder flow rate sits at 95% and the headline result is 85 %, this scenario lands almost exactly on the baseline at 85 %.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to target powder flow rate, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It is a ratio of two tonnage figures over the same period; it says nothing about why material was rejected and is only as accurate as the belt scales or sampling behind the input tonnages.

Results at a glance

  • Powder Flow Rate: 85 % (headline result)
  • Powder Flow Rate gap to target: -17 points
  • Powder Flow Rate accepted or affected material: 850 count
  • Total ore, aggregate, powder, sand, gravel, fines, or bulk solid in same period: 1,000 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Powder Flow Rate calculator, set target powder flow rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.