Coil spring calculator
Customer input field
HELP Explanation display field
Blank Display after calculation
How to use the page
 
Calculation after inputting a numerical value
Tolerance of dimensions and load
Contact us with the numerical values
Clear the number
Dimension input field HELP
Transverse elasticity modulus
N/mm2HELP
Material diameter
mm
Center diameter
mmHELP
Free height
mmHELP
Number of active coils
CoilsHELP
Total number of coils
Coils
Number of end coils
Coils
Spring constant
N/mmHELP
 
Load & Stress Characteristic Columns 
  Load value (N)
Enter
Spring usage scope Stress value(N/mm2) Judgment on spring usage scope
Height(mm) Deflection(mm) τ τ0 Deflection%HELP Pass/fail
1st load P1HELP
2nd load P2HELP
3rd load P3HELP
4th load P4HELP
Specified height at 1st load(mm)→HELP Solid heightHELP Total deflection

Reverse calculation spring constant when specified

N/mm H/D D/d
Reverse calculation number of active coils when specified Coils Mass Material length
Coil spring diagram
Static Stress Judgment Table for Selected Wire Diameter by MaterialHELP
Use

Usage scope judgment

For generalHELP For corrosion resistanceHELP
For light loads
For high durability

For heavy loads

For light loads
For heavy loads
Load point
scope Pass / fail
SWP-A
SWP-B
SWOSC-V
SUP10
SUS304WPB
SUS316WPA
SUS304
SUS316
P1
P2
P3
P4
Permissible static stressN/mm2
Shape
advice
Aspect ratio Wire diameter and diameter
Number of active coils End coils
Free length and deflection Material length
Load point
advice
1st load P 3rd load P
2nd load P 4th load P
Advice for when
specifying the height

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