Springs Inc. can produce custom extension springs for short or large quantity production runs in several materials and end types for either open or closed coil extension springs. When you work with Springs Inc, you get the dedicated resources of our experienced design team who will assist you with the selection of materials and calculations.
Extension springs are used to resist tensile axial loads and to absorb and store energy as well as create resistance to a pulling force. Springs can be wound as either an open or closed-coil. Closed-coil springs are usually manufactured with an 'initial tension' that must be overcome before deflection will occur. The initial tension can be varied to decrease as the spring index increases. Hundreds of different end configurations are possible for connecting the spring to the load; the most common are crossover, machine, and extended hooks.
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Spring Steel, High Carbon Steel, Low Carbon Steel, Nickel Plated Carbon Steel, Stainless Alloys, Non-Ferrous Materials, Elgiloy®, Hastelloy®, Monel®, Inconel®
.007 In. to .625 In. in Wire Diameter, Round Wire
Rectangular, Extended Machine End, Expanded Machine End, Double Cross Center Loop, Drawbar Hooks, Standard Machine Ends, Reduced End Swivel Hook, Tear Drop Shaped End, Threaded End, V-Hook End
Zinc, Gold Iridite, Black Oxide, Passivated, Shot Peening, Dykem®