Industrial Fans, Blowers & Air Movement Equipment worked example

Throughput Gap with achievable fan build rate on the line of 7 fans / hr: a worked example in industrial fans, blowers & air movement equipment

Here is what the math looks like when conditions slip. We hold every other input steady and drop achievable fan build rate on the line to 7 fans / hr, then walk the calculation through step by step. Calculate the gap between available fan production throughput and required shipment throughput.

The inputs for this scenario

  • Achievable fan build rate on the line: 7 fans / hr (the input this scenario stresses; the baseline uses 14)
  • Fan ship rate the order schedule demands: 18 fans / hr (held at the documented default)
  • Baseline build rate used to size the gap: 18 fans / hr (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Fan throughput gap = available fan production throughput - required shipment throughput.
  • Fan throughput gap works out to -11 fans / hr at these inputs, and this is the headline figure for the scenario.
  • Throughput gap percent works out to -61.11 % at these inputs.
  • Available fan production throughput works out to 7 fans / hr at these inputs.
  • Required shipment throughput works out to 18 fans / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where achievable fan build rate on the line sits at 14 fans / hr and the headline result is -4 fans / hr, this scenario comes in 175% below the baseline at -11 fans / hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to achievable fan build rate on the line, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses steady-state hourly rates and ignores changeover time, yield loss and mix — a line that hits 14 fans/hr on one model may fall short on a harder one.

Results at a glance

  • Fan throughput gap: -11 fans / hr (headline result)
  • Throughput gap percent: -61.11 %
  • Available fan production throughput: 7 fans / hr
  • Required shipment throughput: 18 fans / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Throughput Gap calculator, set achievable fan build rate on the line to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.