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 Maximum Spring Compression Calculator

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Maximum Spring Compression Definition:

Maximum spring compression is the "true maximum travel" of a compression spring also known as the maximum travel considering solid height or the safe travel distance which your spring can travel safely without any permanent set caused by fatigue and stress.

Our maximum spring compression calculator provides you with the maximum spring compression also known as both the "true maximum travel" and the "maximum travel considering solid height". You will notice that these numbers are usually never the same. The maximum travel considering solid height is the actual maximum spring travel you'll be able to obtain compressing the spring down to solid height or coil bind height where all the coils are touching. The true maximum travel is what you can obtain if you make the free length of your spring longer thus increasing your maximum spring compression. Here is where our Free Online Maximum Spring Compression Calculator comes in.

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For instructions on how to use our Free Online Spring Calculator visit our page:

Compression Spring Calculator Instructions

Extension Spring Calculator Instructions

Torsion Spring Calculator Instructions

To figure out the load of your spring manually, you must multiply the rate by the distance traveled. The rate of your spring is the amount of force needed to travel 1 inch of distance. Lets say your rate is 1 pound; then it will take you 1 pound of force to travel 1 inch of distance, 2 pounds of force to compress your spring 2 inches of distance, and so on.
The formula for this would be:
Load = Rate * Distance Traveled
( L = R * DT )

Our calculator provides you with the maximum spring compression also known as both the "true maximum travel" and the "maximum travel considering solid height". You will notice that these numbers are usually never the same. The maximum travel considering solid height is the actual maximum spring travel you'll be able to obtain compressing the spring down to solid height or coil bind height where all the coils are touching. The true maximum travel is what you can obtain if you make the free length of your spring longer thus increasing your spring travel. How do you do this? Take a look at the example shown below:

Example:
You have a closed and squared ends compression spring with the following physical dimensions:
Wire Diameter (WD) : 0.035 in.
Outer Diameter (OD) : 0.500 in.
Free Length (FL) : 1.000 in.
Number of Active Coils (NA) : 8
Solid Height (SH) : 0.385 in.
Material : Music Wire ASTM A228

After doing the calculation, the calculator provides the following information:
True Maximum Travel: 1.858 in.
Maximum Travel Considering Solid Height: 0.615 in.
( this will appear as shown below under the 5th step on our Maximum Spring Compression Calculator analysis )

Now, you can keep your spring as it is if you plan for your spring to travel a distance of less than 0.615 inches, but if you want your spring to travel more than that, lets say: 1.858 inches of travel, then you can make your spring's free length (FL) longer, keeping the same amount of coils.
You would change the free length (FL) to 2.243
The formula for this calculation is:
Free Length = Solid Height .385 + True Maximum Travel 1.858 = 2.243 Free Length (FL)
( FL = SH + TMT )

You'll notice that once you change the free length to 2.243 inches versus the old free length of 1.000 inch and click "Calculate" both the maximum travel considering solid height and the true maximum travel will be the same (1.858 in.).
( This will appear as shown below under the 5th step on our Maximum Spring Compression Calculator analysis )

If you have any questions concerning our maximum spring compression calculator feel free to call our spring engineers for more help.

 Acxess Spring, 2225 E. Cooley Dr. Colton, CA 92324Ph: (951)276-2777 Fx: (951)240-3334 Email: sales@acxesspring.com
 Phone # (951) 276-2777 Copyright 2017, Acxess Spring, www.acxesspring.com