Rubber, Tires, Foam & Elastomer Manufacturing worked example

Flash Trim Labor at 50% manual trim share: a worked example

This worked example runs the flash trim labor numbers for a tougher week than the baseline: 50% manual trim share instead of the typical 70%. Estimate flash trim labor on molded rubber parts, combining per-part trim cost, the manual share and cryogenic deflash setup.

The inputs for this scenario

  • Parts to Deflash: 4,000 pieces (held at the documented default)
  • Trim Cost per Part: 0.18 $/piece (held at the documented default)
  • Manual Trim Share: 50 % (the input this scenario stresses; the baseline uses 70)
  • Cryo & Tumble Setup: 210 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Flash trim cost = parts x trim cost per part x manual share% + cryo/tumble setup.
  • Total flash trim labor cost works out to 570 $ at these inputs, and this is the headline figure for the scenario.
  • Flash trim labor cost per unit works out to 0.14 $ / piece at these inputs.
  • Variable flash trim labor cost works out to 360 $ at these inputs.
  • Fixed flash trim labor adder works out to 210 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where manual trim share sits at 70% and the headline result is 714 $, this scenario comes in 20.17% below the baseline at 570 $.
  • Use it when quoting a deflash operation or deciding whether to shift parts from manual trimming to cryogenic tumbling. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Total flash trim labor cost: 570 $ (headline result)
  • Flash trim labor cost per unit: 0.14 $ / piece
  • Variable flash trim labor cost: 360 $
  • Fixed flash trim labor adder: 210 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Flash Trim Labor calculator, set manual trim share to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.