Mixing, Blending & Industrial Batch Processing worked example

Agitator Power with agitator motor shaft load of 30 kW: a worked example

This scenario runs the agitator power calculation on the strong side: agitator motor shaft load of 30 kW, with every other input held at its documented default. Use it when agitator energy is a real chunk of conversion cost and you need to allocate kWh per batch before quoting or pricing a new recipe.

The inputs for this scenario

  • Agitator motor shaft load: 30 kW (raised for this scenario; the documented default is 12)
  • Agitator runtime per shift: 8 hr (unchanged)
  • Electricity rate: 0.12 $ / kWh (unchanged)
  • Good batches produced: 20 batches (unchanged)

Working through the calculation

  • Applying the documented formula (Agitator energy cost = motor shaft load × runtime × electricity rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 28.8 $ / batch for energy cost, the number this scenario is built around.
  • At this operating point the engine returns 240 kWh for energy used.
  • At this operating point the engine returns 1.44 $ / piece for cost per piece.
  • At this operating point the engine returns 3.6 $ / hr for hourly cost.

How this compares with the baseline

  • Against the tool's baseline example, where agitator motor shaft load sits at 12 kW and the headline result is 11.52 $ / batch, this scenario comes in 150% above the baseline at 28.8 $ / batch.
  • Use it when building per-batch cost models, evaluating a VFD or motor upgrade, or benchmarking mixing energy intensity across recipes. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Energy cost: 28.8 $ / batch (headline result)
  • Energy used: 240 kWh
  • Cost per piece: 1.44 $ / piece
  • Hourly cost: 3.6 $ / hr

Run it with your numbers

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

Last reviewed 2026-05-12.