Hose, Tubing & Fluid Conveyance Products calculator

Crimp Force Window Calculator

Compare your crimper available force against the required crimp force for the hose and fitting being assembled. A positive margin means the machine meets the requirement. A negative margin means the machine is undersized for the job.

What this calculator does

  • Check crimp force margin for a hose assembly by comparing available crimper force against the required crimp force for the hose and fitting combination.
  • Use it when qualifying a crimp machine for a new hose and fitting combination, or checking whether an existing crimper has enough force for a larger hose size.
  • Checks whether the crimp machine has enough force for a given hose and fitting combination.

Formula used

  • Crimp force margin = available crimper force - required crimp force
  • Crimp force margin percent = crimp force margin / reference force x 100

Inputs explained

  • Available crimper force: Rated output force of the crimp machine at full stroke, from the machine nameplate or manufacturer spec.
  • Required crimp force: Force required to crimp the specific hose and fitting, from the crimp spec chart or supplier guide.
  • Reference crimp force: Use required crimp force as the reference value to normalize the margin percent.

How to use the result

  • Use it during machine qualification, when adding a new hose product line, or when a larger fitting size is being considered.
  • It compares force capacity only. It does not validate crimp diameter, die selection, or compliance with the manufacturer crimp specification.

Common questions

  • What is the Crimp Force Window calculator for? It checks whether a crimp machine has enough force to assemble a specific hose and fitting, and shows the force margin.
  • What numbers do I need before using it? You need the crimper rated force from the machine spec and the required crimp force from the hose manufacturer crimp guide.
  • How should I use the result? Use the margin to decide whether the machine is suitable. If negative, a higher-capacity crimper or different fitting design is needed.
  • When is the result only an estimate? It is an estimate when machine condition, die wear, or hydraulic pressure calibration affects available force.

Last reviewed 2026-05-12.