Bulk Solids, Mining, Aggregates & Material Processing worked example

Blending Time at 14% mixing-quality time allowance: a worked example

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

The inputs for this scenario

  • Total batch tonnage to blend: 1,200 tons (unchanged)
  • Blender throughput rate: 150 tons / hr (unchanged)
  • Mixing-quality time allowance: 14 % (raised for this scenario; the documented default is 12)

Working through the calculation

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

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 1.79% above the baseline at 9.12 hr.
  • It divides batch tonnage by blender throughput to get a base mixing time, then inflates that by a quality allowance to estimate total blending hours. 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

  • Blending Time: 9.12 hr (headline result)
  • Base blending time: 8 hr
  • Blending Time allowance: 14 %
  • Blending Time completion rate: 150 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.