Mass Finishing, Deburring & Polishing worked example

Vibratory Energy Cost at 58% motor load and duty factor: a worked example

This worked example runs the vibratory energy cost numbers for a tougher week than the baseline: 58% motor load and duty factor instead of the typical 80%. Calculate vibratory energy cost for mass finishing, deburring & polishing planning, quoting, troubleshooting, capacity review, or process improvement.

The inputs for this scenario

  • Vibratory run hours per batch: 100 units (held at the documented default)
  • Electricity cost per run hour: 45 $ / unit (held at the documented default)
  • Motor load / duty factor: 58 % (the input this scenario stresses; the baseline uses 80)
  • Fixed media and maintenance cost: 250 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Vibratory Energy Cost cost = quantity × rate × capture factor + fixed cost.
  • Weighted cost works out to 2,860 $ at these inputs, and this is the headline figure for the scenario.
  • Per piece value works out to 28.6 $ / piece at these inputs.
  • Captured value works out to 2,610 $ at these inputs.
  • Fixed adjustment works out to 250 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where motor load and duty factor sits at 80% and the headline result is 3,850 $, this scenario comes in 25.71% below the baseline at 2,860 $.
  • Use it to benchmark running cost, compare two finishing machines, or justify off-peak scheduling of long cycles. 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

  • Weighted cost: 2,860 $ (headline result)
  • Per piece value: 28.6 $ / piece
  • Captured value: 2,610 $
  • Fixed adjustment: 250 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Vibratory Energy Cost calculator, set motor load and duty factor to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.