Heat Exchanger, Coil & Radiator Manufacturing worked example

Fin Press Output at 65% fin press efficiency: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop fin press efficiency to 65%, then walk the calculation through step by step. Estimate effective fin press throughput from finished fins, press runtime, and efficiency for coil and radiator fin production.

The inputs for this scenario

  • Accepted fins produced: 1,200 fins (held at the documented default)
  • Press runtime: 8 hr (held at the documented default)
  • Fin press efficiency: 65 % (the input this scenario stresses; the baseline uses 90)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw fin press output = accepted fins produced รท press runtime.
  • Effective fin press output works out to 97.5 fins / hr at these inputs, and this is the headline figure for the scenario.
  • Raw fin press output works out to 150 fins / hr at these inputs.
  • Fin press efficiency works out to 65 % at these inputs.
  • Press runtime works out to 8 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where fin press efficiency sits at 90% and the headline result is 135 fins / hr, this scenario comes in 27.78% below the baseline at 97.5 fins / hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to fin press efficiency, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses a single efficiency factor and a runtime you supply; it will not capture intermittent slowdowns or a die wearing through a long run unless you re-measure.

Results at a glance

  • Effective fin press output: 97.5 fins / hr (headline result)
  • Raw fin press output: 150 fins / hr
  • Fin press efficiency: 65 %
  • Press runtime: 8 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Fin Press Output calculator, set fin press efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.