Injection Molding worked example

Mold Amortization Cost with total mold investment of 212,500 $: a worked example

This scenario runs the mold amortization cost calculation on the strong side: total mold investment of 212,500 $, with every other input held at its documented default. Use this when quoting part prices, comparing tooling options (single vs. multi-cavity), or deciding between a production mold and a prototype mold based on volume requirements.

The inputs for this scenario

  • Total mold investment: 212,500 $ (raised for this scenario; the documented default is 85,000)
  • Expected lifetime production volume: 500,000 parts (unchanged)
  • Maintenance cost adder: 1.1 x (unchanged)

Working through the calculation

  • Applying the documented formula (Amortized cost per part = (Mold investment x Maintenance adder) / Lifetime volume) to the inputs above produces each figure below.
  • At this operating point the engine returns 116,875,000,000 $/part for result, the number this scenario is built around.
  • At this operating point the engine returns 116,875,000,000 value for base amortization (cost / volume).
  • At this operating point the engine returns 1 x for multiplier.
  • At this operating point the engine returns 106,250,000,000 value for factor a x b.

How this compares with the baseline

  • Against the tool's baseline example, where total mold investment sits at 85,000 $ and the headline result is 46,750,000,000 $/part, this scenario comes in 150% above the baseline at 116,875,000,000 $/part.
  • Use it when quoting a part price, comparing single-cavity versus multi-cavity tooling, or deciding between a prototype mold and a production mold based on program volume. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Result: 116,875,000,000 $/part (headline result)
  • Base amortization (cost / volume): 116,875,000,000 value
  • Multiplier: 1 x
  • Factor A x B: 106,250,000,000 value

Run it with your numbers

  • Every input above is editable in the live Mold Amortization Cost calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.