Hose, Tubing & Fluid Conveyance Products worked example

Ferrule Inventory Usage with hose assemblies to produce of 130 assemblies: a worked example

This worked example runs the ferrule inventory usage numbers for a tougher week than the baseline: hose assemblies to produce of 130 assemblies instead of the typical 250 assemblies. Estimate ferrule or crimp collar quantity needed for a hose assembly production run from assemblies, ferrules per end, and ends per assembly.

The inputs for this scenario

  • Hose assemblies to produce: 130 assemblies (the input this scenario stresses; the baseline uses 250)
  • Ferrules per assembly end: 1 ferrules / end (held at the documented default)
  • Fitting ends per assembly: 2 ends / assembly (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Theoretical ferrule count = assemblies x ferrules per end x fitting ends per assembly.
  • Required quantity works out to 6,500 ferrules at these inputs, and this is the headline figure for the scenario.
  • Theoretical ferrule count works out to 130 ferrules at these inputs.
  • Ferrule scrap or trial allowance works out to 6,370 ferrules at these inputs.
  • Efficiency works out to 2 % at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where hose assemblies to produce sits at 250 assemblies and the headline result is 12,500 ferrules, this scenario comes in 48% below the baseline at 6,500 ferrules.
  • Use it to kit a hose assembly run, set ferrule reorder points, or size a stocking buy for a recurring crimp job. 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

  • Required quantity: 6,500 ferrules (headline result)
  • Theoretical ferrule count: 130 ferrules
  • Ferrule scrap or trial allowance: 6,370 ferrules
  • Efficiency: 2 %

Run it with your numbers

  • To rerun this with your own numbers, open the live Ferrule Inventory Usage calculator, set hose assemblies to produce to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.