Coil Springs called compression springs can store mechanical energy when they are compressed. These open-coiled, helical springs provide resistance to compressive loading. When these springs are subjected to a compression load, they compress, grow shorter, and absorb a large amount of potential force. The springs are forced back to their original lengths and forms after the load is reduced or eliminated by the stored energy. Compression spring are manufactured from 0.15mm to 20mm wire dia.
Compression spring end types might be normal or customized. Standard ends can be open or closed, or they can be ground or not. Given the same number of coils, wire size, and outside diameter, open or closed ends will alter the spring rate.
Ground end compression springs are closed end compression springs that
have their ends ground to the size of the spring. The grinding process
increases manufacturing time and the cost of each spring. Grinding of ground
end compression springs gives them a slenderness ratio to be able to function
without the need of a rod or shaft.
Double closed ends are similar to closed and squared ends. Instead of having one closed end, double closed end compression springs have two. Double closed end compression springs have extra stability with a high slenderness ratio that requires a reinforced end in order to prevent buckling.
