Bulk Solids, Mining, Aggregates & Material Processing worked example

Blending Time at 8.64% mixing-quality time allowance: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop mixing-quality time allowance to 8.64%, then walk the calculation through step by step. Estimate blending time for blending time for bulk solids, mining, aggregates, and material processing using plant-floor material, production, quality, capacity, or cost inputs.

The inputs for this scenario

  • Total batch tonnage to blend: 1,200 tons (held at the documented default)
  • Blender throughput rate: 150 tons / hr (held at the documented default)
  • Mixing-quality time allowance: 8.64 % (the input this scenario stresses; the baseline uses 12)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base blending time = blending time workload รท blending time completion rate.
  • Blending Time works out to 8.69 hr at these inputs, and this is the headline figure for the scenario.
  • Base blending time works out to 8 hr at these inputs.
  • Blending Time allowance works out to 8.64 % at these inputs.
  • Blending Time completion rate works out to 150 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where mixing-quality time allowance sits at 12% and the headline result is 8.96 hr, this scenario comes in 3% below the baseline at 8.69 hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to mixing-quality time allowance, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes steady throughput and a flat percentage allowance, so it won't capture segregation behavior of widely different particle sizes or densities that may need step-wise mixing trials.

Results at a glance

  • Blending Time: 8.69 hr (headline result)
  • Base blending time: 8 hr
  • Blending Time allowance: 8.64 %
  • Blending Time completion rate: 150 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Blending Time calculator, set mixing-quality time allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.