Gaskets, Seals, O-Rings & Elastomer Components worked example

Tool Amortization with tooling investment of 9,000 $: a worked example in gaskets, seals, o-rings & elastomer components

Suppose tooling investment falls to 9,000 $. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate tooling amortization per gasket, seal, O-ring, mold, die, or extrusion tool by spreading tool cost over expected production volume.

The inputs for this scenario

  • Tooling investment (mold/die cost): 9,000 $ (the input this scenario stresses; the baseline uses 18,000)
  • Expected production volume over tool life: 250,000 parts (held at the documented default)
  • Amortization multiplier: 1 x (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Tool amortization per unit = tooling investment ÷ expected production volume × amortization multiplier.
  • Tool amortization per unit works out to 0.04 $ / unit at these inputs, and this is the headline figure for the scenario.
  • Base tool cost per unit works out to 0.04 value at these inputs.
  • Amortization multiplier works out to 1 x at these inputs.
  • Expected production volume works out to 250,000 value at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where tooling investment sits at 18,000 $ and the headline result is 0.07 $ / unit, this scenario comes in 50% below the baseline at 0.04 $ / unit.
  • It computes the dollars of mold or die cost recovered on each part by dividing tooling investment by expected lifetime volume and applying a recovery multiplier. 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

  • Tool amortization per unit: 0.04 $ / unit (headline result)
  • Base tool cost per unit: 0.04 value
  • Amortization multiplier: 1 x
  • Expected production volume: 250,000 value

Run it with your numbers

  • To rerun this with your own numbers, open the live Tool Amortization calculator, set tooling investment to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.