Compression Spring Designs
If you enter the exact outside diameter and free length that is required, you will be given a list of springs that will match your dimensions and you will get options in wire size and number of coils. The larger the wire size, the stronger the spring. The number of coils will effect the strength of the spring and will also determine stresses which we grade as low, good, high and very high.
Extension Spring Designs
By entering the exact dimensions you require, you can select the spring that meets your criteria from a list of springs that have different strengths, according to the wire size.