Prototype Compression Springs
Prototype springs are springs that are used for testing purposes. These springs are usually placed in prototype devices or used in the previous stages of developing a prototype. They tend to be purchased in smaller quantities as samples. It is common to purchase several similar prototype spring samples in order to try each of them out. This helps to see which of the sample springs best meets the required demands for a specific product or device that is being developed.
Since custom compression springs can be more pricey than stock springs, it is more practical to purchase stock compression springs for prototype purposes. Custom springs are more economical when sold in higher quantities. Since they are made to match your exact specifications, and are more labor and resource demanding, their price is reflected on this. However, stock springs come in more standard sizes and are readily available. At CustomSpring.com we have over 40,000 stock compression springs, so it won't be hard to find a spring that is similar to what you want.


In order to find the compression stock springs that best match your needs you can start by using our Compression Spring Finder. All you need to do is input the tolerance range of the dimensions you would like it to have. We recommend that you at least provide the tolerance of the Outer Diameter and Free Length. If you have more information or specifications that you would like to search for, you can click on “Search More Fields”, and fill out other dimensions such as: load, total coils, solid height, material type, etc. Filling out more fields will allow you to narrow down your search and find the closest match in stock.


At CompressionSpring.com, there is no minimum order required—you can purchase as many or as few springs as you need, in any variety. This gives you full flexibility when selecting stock compression springs for testing, prototyping, or replacement. Don’t wait—find your compression stock spring today! If you need assistance, feel free to contact us at (951) 276-2777.