Free tool

Cooling Time & Cycle Estimator

Cooling time scales with the square of wall thickness — that single law drives most of part cost. Adjust the inputs and watch it work. Estimates use the standard plate-cooling equation; background in our cycle time guide.

Cooling time4.1 s
Estimated cycle time6.9 s
Output at 4 cavities2,084 parts/h
Cycle machine cost€0.106
Machine cost per part€0.0264

The square law in action

At 2.0 mm wall your cooling time is about 4.1 s. Halve the wall to 1.0 mm and it drops to 1.0 s — a fourfold reduction, because cooling time is proportional to thickness squared. That is why our wall thickness guide treats every unnecessary 0.5 mm as a cost decision, and why thin-wall moulding can cycle in seconds.

Assumptions: one-dimensional plate cooling, cooling as 60% of the cycle (typical range 50–70%), no hot-spot or geometry penalties. Real parts with ribs, bosses and cores cool unevenly; a mould flow simulation refines this estimate before tooling. This tool is for budgeting and design comparison, not a quotation.

Ready for a firm number? Request a quotation from Nordmould — we confirm cycle time and cost per part with your real geometry.