Compression springs are open coil helical springs which are wound to resist compression. The most common is the straight spring, having the same diameter throughout the length of the spring. Compression springs may also be conical and barrel (convex), hourglass (concave) or other odd shapes
Commerce Spring custom manufactures compression springs using round wire between. 008 and .162 in diameter in a variety of material. Most commonly used are Music Wire, Stainless Steel 302, Hard Drawn MB and Galvanized Hard Drawn. Other materials available are Stainless Steel Type 316 and 17-7 PH, Plated Music Wire, Oil Tempered, Beryllium Copper, Phosphorous Bronze, Inconel, Monel, Brass, Chrome Silicon and Chrome Vanadium and more high temperature and corrosion resistant alloys.
Compression spring end configurations vary. These include plain or open ends with or without grinding, square or closed ends, with or without grinding or combination ends.
Once springs are formed, a variety of finishes are available including passivation, zinc, cadmium, black oxide, copper, tinned, paint and others.
Experienced engineers are available to help you determine the best shape, material end configurations and finish to meet your requirements.