Foundry & Forging calculator

Pouring Line Throughput Calculator

Measure what the pouring line delivered over its scheduled production time. Enter poured and first-pass accepted mold counts, matching runtime, scheduled hours and your target rate.

What this calculator does

  • Measure accepted molds per scheduled hour without applying an extra efficiency factor to recorded output.

Formula used

  • Scheduled accepted rate = accepted molds ÷ scheduled hours
  • Run rates = poured or accepted molds ÷ actual runtime
  • Availability = actual runtime ÷ scheduled hours × 100
  • First-pass acceptance = accepted molds ÷ poured molds × 100
  • Target gap = target accepted rate − scheduled accepted rate

Inputs explained

  • Molds Poured: Distinct molds poured in the reporting window.
  • First Pass Accepted Molds: Poured molds accepted at the defined inspection checkpoint.
  • Actual Pouring Runtime: Logged pouring-line runtime, excluding recorded stops.
  • Scheduled Production Time: Same-window scheduled hours, including production stops.
  • Target Accepted Mold Rate: Production plan expressed per scheduled hour.

How to use the result

  • Best suited to pouring shift review, molding and pouring coordination.
  • Molds with different cavity counts need conversion before comparing casting output. The result does not determine safe pouring speed or metal temperature.

Current U.S. benchmarks

  • The producer price index for steel mill products stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. Quotes priced off last quarter's material cost miss this move.
  • The U.S. has 3,569 primary metal manufacturing establishments employing about 354,911 workers (Census County Business Patterns, 2023).

Common questions

  • Can I count castings instead of molds? No. Use molds consistently; different cavity counts would otherwise make the rate comparison misleading.
  • What does first-pass acceptance mean here? It means meeting the stated inspection checkpoint without another pour or repair. State that checkpoint when comparing shifts.
  • Why show two hourly rates? Run-hour rate describes operation while running; scheduled-hour rate includes the effect of production stops.
  • How are old efficiency scenarios represented? They vary first-pass acceptance at the same time and poured count, making the quality effect observable.

Last reviewed 2026-10-06.