High Tension Springs

Definition:

Extension springs with a high amount of tension, therefore taking a strong load to extend it.
Also known as heavy duty tension springs.

At China Spring Products Corp we are able to increase your extension spring’s amount of tension. Our highly experienced spring engineers will work with you on your tension spring design in order to make sure that your spring can resist a large amount of load, therefore making this a high tension spring.

One thing you must be very aware of when it comes to your high tension springs, though, is the initial tension it exerts. This has as much to do with your tension spring design as your spring’s rate does because it will also affect your spring’s working loads.

Initial tension is the tension gathered in between your spring’s coils before it is extended. Initial tension will be released once your spring has been extended to the point where you can see light in between the coils. To calculate your spring’s initial tension, you must extend your spring enough to where you can see space in between the coils (this will be your L1). Then, extend your spring the same amount of distance (this will be your L2). Multiply the value of L1 by 2 and subtract the value in L2 from the previous calculation. This will give you your tension spring’s initial tension. The formula and explanation to calculate your high tension spring’s initial tension is provided below along with the diagram to the right.