Pultrusion & Continuous Composite Profiles worked example

Cure Die Dwell at 12% cure schedule safety allowance: a worked example

What does the result look like when cure schedule safety allowance reaches 12%? The full calculation is worked below with real intermediate numbers. Use it when cure die dwell in pultrusion and continuous composite profiles needs a defensible run time before a quote goes out.

The inputs for this scenario

  • Linear feet of profile to cure: 120 units (unchanged)
  • Cure line speed through the die: 12 units / hr (unchanged)
  • Cure schedule safety allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base cure die dwell time = required work รท processing rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for adjusted run time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base run time.
  • At this operating point the engine returns 12 % for allowance applied.
  • At this operating point the engine returns 12 pieces / min for process rate.

How this compares with the baseline

  • Against the tool's baseline example, where cure schedule safety allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • A figure at this level is achievable when cure schedule safety allowance is genuinely sustained, not just peaked for a shift. It assumes a steady cure line speed; die warm-up, mid-run speed changes, and off-spec restarts are only approximated by the flat allowance percentage.

Results at a glance

  • Adjusted run time: 11.2 hr (headline result)
  • Base run time: 10 hr
  • Allowance applied: 12 %
  • Process rate: 12 pieces / min

Run it with your numbers

  • Every input above is editable in the live Cure Die Dwell calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.