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

Labor Per Batch at 72% labor allocation share: a worked example in gaskets, seals, o-rings & elastomer components

Here is what the math looks like when conditions slip. We hold every other input steady and drop labor allocation share to 72%, then walk the calculation through step by step. Estimate direct labor cost per batch for molding, die cutting, trimming, inspection, packaging, or kitting gasket and seal production.

The inputs for this scenario

  • Batch labor hours: 18 hr (held at the documented default)
  • Loaded labor rate: 58 $ / hr (held at the documented default)
  • Labor allocation share: 72 % (the input this scenario stresses; the baseline uses 100)
  • Fixed setup labor cost: 220 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable batch labor cost = batch labor hours × loaded labor rate × labor allocation share.
  • Total labor per batch works out to 972 $ at these inputs, and this is the headline figure for the scenario.
  • Labor cost per entered labor hour works out to 53.98 $ / piece at these inputs.
  • Variable batch labor cost works out to 752 $ at these inputs.
  • Fixed setup labor cost works out to 220 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where labor allocation share sits at 100% and the headline result is 1,264 $, this scenario comes in 23.13% below the baseline at 972 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to labor allocation share, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It treats run labor as a flat hours-times-rate figure and won't capture learning-curve effects, mid-run downtime, or a second changeover within the batch.

Results at a glance

  • Total labor per batch: 972 $ (headline result)
  • Labor cost per entered labor hour: 53.98 $ / piece
  • Variable batch labor cost: 752 $
  • Fixed setup labor cost: 220 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Labor Per Batch calculator, set labor allocation share to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.