Robotics & Automation worked example

Vacuum Pump Capacity with per-cup leak rate of 1.5 SCFM: a worked example in robotics & automation

What does the result look like when per-cup leak rate reaches 1.5 SCFM? The full calculation is worked below with real intermediate numbers. Use it when sizing a vacuum pump or generator for an EOAT so the pump pulls the cells fast enough through transfer, peel, and porous loads.

The inputs for this scenario

  • Per-cup leak rate: 1.5 SCFM (raised for this scenario; the documented default is 0.6)
  • Number of cups: 6 cups (unchanged)
  • Evacuation factor for cycle speed: 1.5 x (unchanged)
  • Porosity safety factor: 1.5 x (unchanged)

Working through the calculation

  • Applying the documented formula (Required vacuum CFM = per-cup leak rate x number of cups x evacuation factor x porosity safety factor) to the inputs above produces each figure below.
  • At this operating point the engine returns 20.25 CFM for required vacuum cfm, the number this scenario is built around.
  • At this operating point the engine returns 13.5 value for base product.
  • At this operating point the engine returns 1.5 x for multiplier.
  • At this operating point the engine returns 9 value for factor a x b.

How this compares with the baseline

  • Against the tool's baseline example, where per-cup leak rate sits at 0.6 SCFM and the headline result is 8.1 CFM, this scenario comes in 150% above the baseline at 20.25 CFM.
  • A figure at this level is achievable when per-cup leak rate is genuinely sustained, not just peaked for a shift. Pump and generator data sheets rate flow at a specific vacuum level; a source that hits your CFM at low vacuum may fall short at your working inHg, so always confirm against the curve, not the headline number.

Results at a glance

  • Required vacuum CFM: 20.25 CFM (headline result)
  • Base product: 13.5 value
  • Multiplier: 1.5 x
  • Factor A x B: 9 value

Run it with your numbers

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

Last reviewed 2026-05-12.