Foundry & Forging worked example

Pouring Line Throughput at 63% pouring efficiency: a worked example

Suppose pouring efficiency falls to 63%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate effective pouring-line throughput for molds, heats, ladles, or castings per hour.

The inputs for this scenario

  • Molds or castings poured: 140 units (held at the documented default)
  • Pouring-line runtime: 7.5 hr (held at the documented default)
  • Pouring efficiency: 63 % (the input this scenario stresses; the baseline uses 88)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw pouring line throughput = molds or castings poured รท pouring-line runtime.
  • Effective pouring line throughput works out to 11.76 units / hr at these inputs, and this is the headline figure for the scenario.
  • Raw throughput works out to 18.67 units / hr at these inputs.
  • Pouring efficiency works out to 63 % at these inputs.
  • Pouring-line runtime works out to 7.5 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where pouring efficiency sits at 88% and the headline result is 16.43 units / hr, this scenario comes in 28.41% below the baseline at 11.76 units / hr.
  • It computes effective pouring line throughput by taking the raw rate (molds poured divided by runtime) and discounting it for pouring efficiency. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Effective pouring line throughput: 11.76 units / hr (headline result)
  • Raw throughput: 18.67 units / hr
  • Pouring efficiency: 63 %
  • Pouring-line runtime: 7.5 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Pouring Line Throughput calculator, set pouring efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.