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Compression Springs Compression Springs

Enter your Outside Diameter and Free Length
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Outside Diameter
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Inside Diameter
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Free Length
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Wire Diameter
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Total Coils
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Rate
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Material Type
Max. Load
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Max. Deflection
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Solid Height
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*Required Field
Extension Springs Extension Springs

Enter your Outside Diameter and Length Inside Hook
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Outside Diameter
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Length Inside Hook
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Wire Diameter
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Max. Load
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Max. Deflection
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Initial Tension
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Rate
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Material Type
*Required Field
Torsion Springs Torsion Springs

Enter your Outside Diameter and Total Coils
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Outside Diameter
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Inside Diameter
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Total Coils
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Free Position
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Wire Diameter
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Body Length
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Max. Torque
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Max. Deflection
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Rate
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Leg Length
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Material Type
*Required Field
Conical Springs Conical Springs

Enter you Small Outside Diameter, Large Outside Diameter and Free Length
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Small Outside Diameter
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Large Outside Diameter
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Free Length
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Rate
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Total Coils
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Solid Height
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Wire Diameter
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Material Type
*Required Field

Constant Force Helical Compression Spring Design Calculator

Definition:

A constant force helical compression spring design calculator able to calculate the constant or rate of a helical compression spring design as well as safe maximum load and safe maximum travel.

Spring rate or spring constant is the "Master" when it comes to your helical compression spring design. Your helical compression spring undergoes a load while traveling down to your desired loaded height. Follow the example shown below which demonstrates the formula found in Hooke’s Law.

Ex. You have a spring that is 2” (two inches) long. You need this spring to travel 1.5” (one and a half inches) down to a loaded height of 0.5” (half inch). If you have a spring rate of 1 lbf/in (one pound of force per inch of travel), what amount of force or load will you have to apply to this spring for it travel down to your desired loaded height? Please follow the helical compression spring design formula below and view the image which will demonstrate and explain the formula.

A ruler measuring two inches with three springs to the right of it. One at free length, another at a loaded height, and another at solid height along with the explanation and formula to calculate the constant force increase

k = F ÷ x

Where as:
k = Spring Constant (Spring Rate)
F = Force (Load)
x = Distance traveled

Once we insert the values into such formula, you must proceed as follows using reverse math to get the value of F.

k = 1
F = unknown value
x = 1.5

2 = F ÷ 1.5
F = 2 * 1.5
F = 1.5

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Spring Creator 5.0 offers you the possibility to design springs that perfectly fit your needs. Our platform not only allows you to design various types of springs but also provides advanced tools like the Online Spring Force Tester to simulate and evaluate spring performance. Visualize your design in 3D, download detailed blueprints, and get instant quotes. Try it for free and discover why we are the preferred choice of engineers and makers!

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Created by Alfonso Jaramillo Jr

President Acxess Spring

Over 40 Years of Experience in Spring Engineering and Manufacturing