Rare Earth Magnet & Motor Materials worked example

Packaging Protection Cost at 43% special-handling share: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop special-handling share to 43%, then walk the calculation through step by step. Estimate the cost of protective packaging for rare earth magnets including keepers, corrosion barriers and magnetic shielding.

The inputs for this scenario

  • Magnets packed: 600 pieces (held at the documented default)
  • Protective packaging rate: 3.2 $/piece (held at the documented default)
  • Special-handling share: 43 % (the input this scenario stresses; the baseline uses 60)
  • Air-freight magnet declaration fee: 450 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total packaging = magnets packed x packaging rate x special-handling share + declaration fee.
  • Total packaging protection cost works out to 1,276 $ at these inputs, and this is the headline figure for the scenario.
  • Packaging protection cost per unit works out to 2.13 $ / piece at these inputs.
  • Variable packaging protection cost works out to 826 $ at these inputs.
  • Fixed packaging protection cost adder works out to 450 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where special-handling share sits at 60% and the headline result is 1,602 $, this scenario comes in 20.37% below the baseline at 1,276 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to special-handling share, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses one blended packaging rate and a single special-handling share, so mixed magnet grades or sizes with very different shielding needs may need to be split into separate runs.

Results at a glance

  • Total packaging protection cost: 1,276 $ (headline result)
  • Packaging protection cost per unit: 2.13 $ / piece
  • Variable packaging protection cost: 826 $
  • Fixed packaging protection cost adder: 450 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Packaging Protection Cost calculator, set special-handling share to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.