Finishing worked example
Gun Flow Rate at 92% transfer efficiency: a worked example
What does the result look like when transfer efficiency reaches 92%? The full calculation is worked below with real intermediate numbers. Use this calculator for practical powder coating or surface finishing planning, quoting, troubleshooting, or line setup.
The inputs for this scenario
- Gun flow setting: 0.8 lb / min (unchanged)
- Spray time or pass factor: 1 x (unchanged)
- Transfer efficiency: 92 % (raised for this scenario; the documented default is 80)
Working through the calculation
- Applying the documented formula (Effective gun flow = gun flow setting × spray time or pass factor × transfer efficiency) to the inputs above produces each figure below.
- At this operating point the engine returns 0.74 lb / min for effective rate, the number this scenario is built around.
- At this operating point the engine returns 0.8 lb / min for base rate.
- At this operating point the engine returns 0.06 lb / min for loss to inefficiency.
- At this operating point the engine returns 92 % for efficiency.
How this compares with the baseline
- Against the tool's baseline example, where transfer efficiency sits at 80% and the headline result is 0.64 lb / min, this scenario comes in 15% above the baseline at 0.74 lb / min.
- A figure at this level is achievable when transfer efficiency is genuinely sustained, not just peaked for a shift. It assumes a calibrated, steady gun output; real transfer efficiency drifts with part geometry, ground quality, gun-to-part distance, and reclaim, so treat the result as a planning baseline, not a guaranteed deposition figure.
Results at a glance
- Effective rate: 0.74 lb / min (headline result)
- Base rate: 0.8 lb / min
- Loss to inefficiency: 0.06 lb / min
- Efficiency: 92 %
Run it with your numbers
- Every input above is editable in the live Gun Flow Rate calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.