The primary purpose of the 20" long stainless and 36" long compression springs is to offer our customers a means for creating a desired custom length and/or spring compression travel for a given load. Once cut, the end coils may be bent back to touch the previous coil to create a squared end. The spring rate (lbs/in) can be determined for any cut length by simply dividing the listed spring rate constant by the length we want to cut it to. For example for ST2-13, if we want to cut it to 8", rate=1.1 lbs/8" = .138 lbs/in. Similarly to find the solid length at any length simply multiple the solid length constant by the length the spring is cut to. 8 x .32=2.56鈥�

Compression Spring Calculator
Compression Spring Selection Guide & Technical Information