Spring Winding Services

Spring winding services fabricate springs according to customer specifications. They use winding machines or winders to pull a wire and coil it into a spring shape. Spring winding services also use grinders and wheels, finishing equipment such as ovens and passivating tanks, hand tools, testing equipment, and tooling stock. Some spring winding services can help improve customer designs, or suggest materials for specific applications. 

Most spring winding services fabricate the following types of springs: compression springs, conical or taper springs, constant force springs, die springs, disc and washer springs, extension springs, flat springs, leaf springs, power and clock springs, torsion springs, and variable pitch springs. Spring winding services may also provide stamping and wireforming services, and manufacture specialized and proprietary springs.

Spring winding services can fabricate springs from a variety of metal and non-metal materials. Examples include spring steel, music wire, stainless steel, exotic metals, and plastics. When selecting spring materials, spring winding services should consider tensile or impact strength, magnetic and electric properties, and corrosion resistance. Tensile strength or universal tensile strength (UTS) is the force required to pull a spring material to the point of fracture Material flow during stamping or forming is another important consideration, especially if deep draws or thin or thick parts are desired.

Many spring winding services fabricate springs from spring steel, music wire, and stainless steel. Spring steel is a standard, industrial grade of steel that is designed specifically for spring manufacturing. It exhibits good elastic and return properties, especially when used in springs. Music wire is another common and relatively inexpensive high-carbon steel alloy used for spring making. Music wire is typically cold-drawn and offers good uniform tensile strength (UTS). Stainless steel is a common spring material that exhibits good corrosion resistance.

Some spring winding services use exotic metals and plastics. These exotic metals have specialized properties, or are designed for specific applications. Examples of exotic metals include beryllium copper, beryllium nickel, niobium, tantalum, and titanium. Titanium, a ductile and malleable white metal, is often used in aviation and aerospace applications. Spring winding services may wind plastic springs for light-to-medium duty applications. Plastic springs are also quiet and corrosion-resistant.

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