Compression Springs Compression Springs

Enter your Outer Diameter and Free Length
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Outer Diameter (in)
Outer Diameter
to
Inner Diameter (in)
Inner Diameter
to
Free Length (in)
Free Length
to
Wire Diameter (in)
Wire Diameter
to
Total Coils
Total Coils
to
Rate (lbs/in)
Rate
to
Material Type
Material Type
Max. Load (lbs)
Max. Load
to
Max. Deflection (in)
Max. Deflection
to
Solid Height (in)
Solid Height
to
*Required Field
Extension Springs Extension Springs

Enter your Outer Diameter and Length Inside Hook
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Outer Diameter (in)
Outer Diameter
to
Length Inside Hook (in)
Length Inside Hook
to
Wire Diameter (in)
Wire Diameter
to
Max. Load (lbs)
Max. Load
to
Max. Deflection (in)
Max. Deflection
to
Initial Tension (lbs)
Initial Tension
to
Rate (lbs/in)
Rate
to
Material Type
Material Type
*Required Field
Torsion Springs Torsion Springs

Enter your Outer Diameter and Total Coils
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Outer Diameter (in)
Outer Diameter
to
Inner Diameter (in)
Inner Diameter
to
Total Coils
Total Coils
to
Free Position (deg)
Free Position
to
Wire Diameter (in)
Wire Diameter
to
Body Length (in)
Body Length
to
Wind Direction
Max. Torque (lbs)
Max. Torque
to
Max. Deflection (deg)
Max. Deflection
to
Rate (in-lbs/deg)
Rate
to
Leg Length (in)
Leg Length
to
Material Type
Material Type
*Required Field
Conical Springs Conical Springs

Enter you Small Outer Diameter, Large Outer Diameter and Free Length
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Small Outer Diameter (in)
Small Outer Diameter
to
Large Outer Diameter (in)
Large Outer Diameter
to
Free Length (in)
Free Length
to
Rate (lbs/in)
Rate
to
Total Coils
Total Coils
to
Solid Height (in)
Solid Height
to
Wire Diameter (in)
Wire Diameter
to
Material Type
Material Type
*Required Field

Spring Compression Formula

Definition - The mathematical rule of a compression spring’s travel calculation expressed in symbols.

 

When working on a compression spring design there are a several key factors. The first factors are the physical dimensions ensuring your spring appropriately fits into your application. Your spring’s working loads are another elemental component that you have to consider.

The working loads determine the force you will need to place on your spring in order for it to travel down to a determined loaded height or vice versa. It can also be the loaded height your spring needs to travel under a specific load.

 

Whichever the case, we want to provide you with the spring compression formulas to calculate the travel. If you don`t want to learn how to calculate them yourself, no problem! Just use our spring calculator, Spring Creator, to calculate them automatically.

 

For compression springs you need two values: load and spring rate. Spring rate is the master of your working load calculations. Whether you are calculating load or travel, spring rate will always be required. The formula to calculate spring travel is the load divided by the spring rate. The result of this is the amount of travel your spring will achieve under the load placed.

 

Spring Compression Formula

x = F ÷ k

x - Travel

F - Load

k - Rate

 
Spring Compression Formula ExampleSpring Compression Formula Example

Based on these calculations you will know if your spring has the adequate force and elasticity, or if it needs to be either stronger or weaker. The force chart to the right explains the adjustments you can make to your spring design to increase or reduce its force and elasticity. The stronger and stiffer the spring, the more stress it is being put through, thus giving you less travel.

 

To make your spring lighter and achieve more spring compression, you must either make the outer diameter larger, make the wire diameter smaller, add coils, or (if your design allows it) make the free length shorter. By making the free length shorter, it will take your spring less travel to reach the desired loaded height thus requiring less force.

 

To make your spring stronger, you must do the exact opposite: increase the wire diameter, decrease the outer diameter, subtract coils, or increase the free length (if your design allows it). By making the free length longer, you allow it to withstand a higher load since it will take your spring more travel to reach the desired loaded height.

More Compression Less Compression
– Wire Diameter + Wire Diameter
+ Outer Diameter – Outer Diameter
+ Coils – Coils
+ Free Length – Free Length

To know whether your spring design will allow you to increase the free length and still be able to reach your required loaded height, click here for information on maximum spring compression.

Invest in precision and quality

 

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!

Try Now Spring Creator Try Now Spring Creator

Created by Alfonso Jaramillo Jr
President Acxess Spring
Over 40 Years of Experience in Spring Engineering and Manufacturing