Enter a number in this field to clarify the dimensional specifications of the coil spring!
Choose one!
Enter the diameter of the material used for the spring!
Not the outer or inner diameter. This is the center Inner diameter + wire diameter = center diameter Outer diameter-wire diameter = center diameter
Length when the spring is not loaded
This number of turns functions as a spring
This shows how much repulsive force can be obtained when the spring is compressed by 1 mm.
Please enter the requested repulsive force to the spring
Please enter the requested repulsive force to the spring
Please enter the requested repulsive force to the spring
Please enter the requested repulsive force to the spring
If the required compression height is not reached for each load in the above table, the "spring constant" of the input dimensions and the desired "load-height relationship" do not match. In such a case, enter the desired compression height for the first load "here", and the back constant spring constant and effective number of turns will be displayed in the lower column.
The height at which the wound portion of the spring whose dimensions have been entered is in close contact and can no longer be compressed is called the "contact height".
Note!
Not all springs can be compressed to the contact height because there is a relationship with the stress during contact!
Please check what percentage of the total deflection is the deflection under each load.
Since the coil spring is basically used in the range of 20-80% of the total deflection,
it is judged whether it is within that range.
We will determine if there is a material with the wire diameter you have selected. If so, we will also determine if it can withstand the desired use.
However, the judgment range is a condition that the compression count is less than 2000 times.
If this condition is exceeded or the operating temperature is high, please contact us.
It is a material that can be used under general temperature and humidity conditions. However, in order to prevent rust, rust prevention treatment is required unless oil is applied in the cylinder.
It is a material that is more resistant to corrosion than general-purpose materials. However, under special conditions such as salt water or seawater, the durability may be inferior to general-purpose materials, so be sure to consult us.
By inputting the repulsive force desired for the spring, the amount of compression at that time and how much the spring can withstand are displayed as stress values.
Customer input field
Explanation display field
Blank
Display after calculation
Calculation after inputting a numerical value
Tolerance of dimensions and load
Contact us with the numerical values
Clear the number
Dimension input field
Transverse elasticity modulus
For general use
For corrosion resistance
N/mm2
Material diameter
mm
Center diameter
mm
Free height
mm
Number of active coils
Coils
Total number of coils
Coils
Number of end coils
Coils
Spring constant
N/mm
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%
Pass/fail
1st load P1
2nd load P2
3rd load P3
4th load P4
Specified height at 1st load(mm)→
Solid height
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
Static Stress Judgment Table for Selected Wire Diameter by Material
Use
Usage scope judgment
For general
For corrosion resistance
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
This comment is for reference only.
Even if a comment to correct the entered value is displayed,
I may be able to do a special and optimal design for you.
Feel free to get in touch by pressing the ‘Contact Us’ button!