Extension Spring Design Alternatives Guide

The following form will help you solving basic extension spring design challenges.

Condition to Satisfy		Solution
To increase load To decrease load To decrease free length To increase free length To decrease O.D. Load correct at max travel but too low at less travel Load correct at max travel but too high at less travel To decrease actual stress		Increase deflection mm/N Decrease number of coils ‘N’ Decrease mean dia ‘D’ Increase wire dia‘d’ Use initial tension Decrease deflection rate mm/N Decrease amount of travel Increase amount of travel Increase number of coils ‘N’ Increase mean dia ‘D’ Decrease wire dia‘d’ Cut down length of end loops Increase length of end loops Decrease max load ‘F’

Learn more about extension spring properties.