CGCADGuide.tools
Mechanical Spring Design

Helical Compression Spring Force & Rate Calculator

Calculate spring constant (k), shear stress, solid height limit, and spring deflection forces under standard mechanical wire configurations.

Spring design size setting

2. Wire Diam. d2 mm
3. Spring outer diameter (Outer Diam. D_out)20 mm
4. Effective number of spring coils (Coils n)10 circle
5. Spring Free Height (Free Height Hf)80 mm
6. Assembly compression displacement (Deflection s)15 mm

Compression Spring Mechanical Verdict

Compression elastic recovery (Load Force)
40.38 N

Equivalent to: 4.12 kg gravity

Spring stiffness coefficient (Stiffness)
2.692 N/mm

Required force for each 1mm press

Solid Height
24.0 mm

Limit displacement: 56.0 mm

Physical spring compression geometry section preview (Deflection Simulator)
Compression stroke: 15 mmShear stress: 268.9 MPa

* Physical simulation: The spring spiral is recalculated in real time based on the relationship between free height and actual displacement.. The physical gathering of the circle distance vividly demonstrates the enrichment of stiffness reaction and stress. When the stress exceeds the limit, The wire spiral is red (safety hazard area) .