Extension Springs

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Most other coil spring varieties are either compression or torsion springs, which are used to store and transmit compressive and rotational force, respectively. Instead, extension springs resist linear pulling forces. Read More…

Extension Springs Extension springs are coil springs that lengthen under the weight of a load.
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Leading Manufacturers

Elgin, IL  |  847-697-5920

Since 1984, Patrick Manufacturing has been a leading producer of custom made-to-order precision springs for high volume applications using wire up to .236” diameter. Wire forms up to .500” wire diameter are also manufactured. Our state-of-the-art CNC coiling and forming machines are ready to work for you. We are ISO 9001:2015 registered. Patrick manufactures for OEM’s and contract manufacturers across many industries in the United States, Europe and Mexico. Patrick is also woman owned and operated.

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Patrick Manufacturing, Inc. $$$

Alsip, IL  |  708-629-0921

As an ISO 9002-certified business, you can expect quality from Taylor Spring. We produce made-to-order compression springs, torsion springs and extension springs. At Taylor Spring, the customer is our number-one priority! We make it a priority to work with you every step of the process from taking your call to shipping your product you'll know you're working with a trust worthy business.

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Taylor Spring Mfg. Co. $$$

Rockford, IL  |  815-963-3334

Riverside Spring is Family Owned and Customer Focused with capabilities that expand over generations in manufacturing of medium to high volume Springs, Wire Forms, Rings, Clips, Flat Forms and Light Stampings. We look forward to the opportunity to quote and earn your confidence.

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Riverside Spring Company $$$

Chino, CA  |  909-465-5166

R & D Spring has the goal of providing our customers with the highest quality products in the industry. All our springs, from torsion springs to extension springs, are made of high quality materials. We take our job seriously, which is why we are the trusted spring manufacturer for many companies in the military, aerospace, and computer industries. Contact us today!

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R & D Spring and Stamping, Inc. $$$

Bristol, CT  |  860-582-6368

Our springs are made of a variety of materials and can be used in many different applications. Pa-Ted manufactures custom designed springs for the automotive, electrical, medical, landscaping, pool covers, and original equipment manufacturers industries, and uses materials such steel, beryllium copper, music wire, brass, titanium, tungsten wire, oil tempered wire, and resistance wire. Call us for wire forms today!

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Pa-Ted Spring Co., LLC $$$
placeholder image Patrick Manufacturing, Inc. Taylor Spring Mfg. Co. Riverside Spring Company R & D Spring and Stamping, Inc. Pa-Ted Spring Co., LLC

Extension Spring Coiling Process Extension Springs - All-Rite Spring Company

Extension spring components are used in tape cassette players, balance scales, trampolines, washing machines, garage doors and in many other products and processes. They usually feature hooks, rings, eyelets or other shapes to which other components can be attached. Extension springs always attached two objects to each other and allow for the controlled movement of those objects relative to each other.

In a trampoline, for example, when a force is exerted on the surface to which the extension springs are attached, the elasticity of the spring allows for its extension to a certain point. Because the spring is attached both to a moving part and to a stationary part, the moving part is restricted in its motion. After extending to a certain point, the extension spring retracts, pulling the moving surface back with it. All extension springs, with few minor exceptions, perform according to similar basic principles.

In contrast to compression springs, extension springs are compact when resting and extended when under stress. They are designed so that their spiral wires are contiguous when there is no weight load and stretched apart when loaded. Extension springs are made of various steel materials, including stainless steel, hard drawn steel, steel music wire and spring steel.

Spring steel is a special kind of steel with increased elasticity and return properties. The elastic ability of a spring enables it to return to its original position; however, this capability diminishes with use. Stainless steel is used as a spring composition material when the spring is intended for use in conditions that involve frequent or constant exposure to moisture or corrosive chemicals.

Stainless steel is by nature strong and corrosion resistant, which makes it appropriate for use as a spring composition material in harsh environments. In general, the larger the spring wire, the stronger the spring is. Decreasing the diameter of the coil is another way to increase spring strength. They come in many different sizes are used in a variety of applications.

Extension Springs Informational Video