Robotic End-of-Arm Tooling worked example

Payload Derating with eoat + robot connected load during derated cycle of 30 kW: a worked example

Push eoat + robot connected load during derated cycle up to 30 kW and the picture changes. This example computes every intermediate figure at that operating point. Use it when payload derating in robotic end-of-arm tooling is up for an upgrade and you want a defensible savings story.

The inputs for this scenario

  • EOAT + robot connected load during derated cycle: 30 kW (raised for this scenario; the documented default is 12)
  • Derated-cycle runtime: 8 hr (unchanged)
  • Blended plant electricity rate: 0.12 $ / kWh (unchanged)
  • Parts handled during runtime: 1,000 units (unchanged)

Working through the calculation

  • Applying the documented formula (Total payload derating energy cost = payload derating connected load × payload derating runtime × blended electricity rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 240 kWh for payload derating energy used, the number this scenario is built around.
  • At this operating point the engine returns 28.8 $ for total payload derating energy cost.
  • At this operating point the engine returns 0.03 $ / piece for energy cost per kwh.
  • At this operating point the engine returns 3.6 $ / hr for hourly payload derating energy cost.

How this compares with the baseline

  • Against the tool's baseline example, where eoat + robot connected load during derated cycle sits at 12 kW and the headline result is 96 kWh, this scenario comes in 150% above the baseline at 240 kWh.
  • It computes the electrical energy (kWh) and dollar cost consumed by a derated robot cell over a given runtime, then divides that cost across the parts handled. 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

  • Payload derating energy used: 240 kWh (headline result)
  • Total payload derating energy cost: 28.8 $
  • Energy cost per kWh: 0.03 $ / piece
  • Hourly payload derating energy cost: 3.6 $ / hr

Run it with your numbers

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

Last reviewed 2026-05-12.