Foundry & Forging calculator

Core Making Capacity Calculator

Estimate good coremaking capacity for sand cores, shell cores, cold-box cores, or core assemblies. Use it when core room output must match mold demand, pouring schedule, or customer lots.

What this calculator does

  • Estimate good coremaking capacity for sand cores, shell cores, cold-box cores, or core assemblies.
  • Use it when core room output must match mold demand, pouring schedule, or customer lots.
  • Plans good coremaking capacity.

Formula used

  • Gross core making capacity = cores per machine cycle × available coremaking cycles
  • Good core making capacity = gross capacity × core machine availability × accepted core yield

Inputs explained

  • Cores per machine cycle: Enter accepted cores or core assemblies made per cycle or box shot.
  • Available coremaking cycles: Use planned machine cycles for the shift, day, or lot.
  • Core machine availability: Use availability after box changes, sand/resin changes, gassing, curing, cleaning, and downtime.
  • Accepted core yield: Use good cores after breakage, dimensional checks, gas defects, coating defects, and scrap.

How to use the result

  • Use for core room scheduling.
  • This calculator is an estimating tool. Results can change with alloy chemistry, furnace practice, ladle losses, mold design, gating and riser layout, core condition, pattern allowance, die temperature, press condition, inspection criteria, rework rules, energy rates, labor standards, and actual shop performance. Validate safety-critical, metallurgical, tooling, press-capacity, and customer-spec decisions with qualified engineering, metallurgy, OEM data, and the applicable control plan.

Common questions

  • What information do I need before using the Core Making Capacity? Use cores per cycle, available cycles, machine availability, and accepted yield.
  • What does the result mean? It estimates gross and good core output.
  • When is the result only an estimate? This calculator is an estimating tool. Results can change with alloy chemistry, furnace practice, ladle losses, mold design, gating and riser layout, core condition, pattern allowance, die temperature, press condition, inspection criteria, rework rules, energy rates, labor standards, and actual shop performance. Validate safety-critical, metallurgical, tooling, press-capacity, and customer-spec decisions with qualified engineering, metallurgy, OEM data, and the applicable control plan.
  • What decision can I make from the result? Use it to schedule core rooms, avoid mold-line shortages, quote core-intensive jobs, or plan overtime.

Last reviewed 2026-05-12.