Bulk Solids, Mining, Aggregates & Material Processing worked example

Batch Weigh Accuracy at 68% target batch weigh accuracy: a worked example

This worked example runs the batch weigh accuracy numbers for a tougher week than the baseline: 68% target batch weigh accuracy instead of the typical 95%. Estimate batch weigh accuracy for batch weigh accuracy for bulk solids, mining, aggregates, and material processing using plant-floor material, production, quality, capacity, or cost inputs.

The inputs for this scenario

  • Weight correctly batched within tolerance: 850 tons (held at the documented default)
  • Total material weighed in the same period: 1,000 tons (held at the documented default)
  • Target batch weigh accuracy: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Batch Weigh Accuracy = batch weigh accuracy accepted or affected material ÷ total ore, aggregate, powder, sand, gravel, fines, or bulk solid in same period × 100.
  • Batch Weigh Accuracy works out to 85 % at these inputs, and this is the headline figure for the scenario.
  • Batch Weigh Accuracy gap to target works out to -17 points at these inputs.
  • Batch Weigh Accuracy 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 batch weigh accuracy sits at 95% and the headline result is 85 %, this scenario lands almost exactly on the baseline at 85 %.
  • Use it during shift handovers, after scale calibration, or when a downstream blend spec drifts and you need to isolate whether batching is the culprit. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Batch Weigh Accuracy: 85 % (headline result)
  • Batch Weigh Accuracy gap to target: -17 points
  • Batch Weigh Accuracy 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 Batch Weigh Accuracy calculator, set target batch weigh accuracy to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.