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Coil Springs

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They are usually composed of a rounded cord, as opposed to the flat strips used in flat springs, and they can be coiled to varying degrees of tightness. Read More…

Coil Springs Coil springs are coiled metal or plastic cords used to store or absorb mechanical energy. Coil springs are among the most widely recognizable spring configurations, and their design is one of the simplest among all spring configurations.
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Leading Manufacturers

Lake Geneva, WI  |  262-249-7854

R&L Spring Company manufactures custom spring and wire formed components for industries such as powersports, automotive, medical devices, and general industrial. Products include compression, extension, and torsion springs, as well as rings, wire forms, fourslide components, and long coils. Wire diameters available from .001" to .750" in both shaped wires and flat stocks. Their experienced team is able to meet the most demanding parts specifications. IATF16949 and ISO9001 certified.

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R & L Spring Company $$$

Santa Clara, CA  |  408-986-1020

Since 1979, our springs & metal parts have been manufactured for the aerospace, electronic instruments, & medical industries. The torsion springs, compression springs, extension springs, flat springs, & leaf springs that American Precision Spring Corporation offers are used by customers worldwide.

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American Precision Spring Corporation $$$

Grand Rapids, MI  |  616-453-5463

Certified ISO 9001:2000 company, Apex Spring & Stamping, is a top manufacturer of springs. Coil springs manufactured: torsion, extension or specialty springs. Flat stock is of spring steel, aluminum, stainless, brass, copper or rolled steel. Since 1977, our goal has been customer satisfaction. We will provide products that meet or exceed our customers expectations that are delivered on time.

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Apex Spring & Stamping Corporation $$$

Minneapolis, MN  |  800-473-8837

Quickdraw Conveyor Systems are specially designed for use in automation processes. Our flexible design is ideal for conveyance in clean-room environments, automotive component assembly, medical device and instrument assembly, microelectronics production and semiconductor applications.

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Activar Technical Products/Quickdraw $$$

McKees Rocks, PA  |  800-245-6200

Quickdraw Conveyor Systems are specially designed for use in automation processes. Our flexible design is ideal for conveyance in clean-room environments, automotive component assembly, medical device and instrument assembly, microelectronics production and semiconductor applications.

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General Wire Spring Company $$$
placeholder image R & L Spring Company American Precision Spring Corporation Apex Spring & Stamping Corporation Activar Technical Products/Quickdraw General Wire Spring Company

Coil springs are sometimes also called helical springs because of their helical shape. Conical coil springs, cylindrical coil springs and other coil spring shapes can be found in use throughout industry, commerce and in consumer products contexts. They are important tools in many different kinds of complex industrial equipment as well as in simple hand tools.

In commerce, simple coil springs are important to the function of office utilities like staplers and even printers. Very small coil springs can be found in pens and mechanical pencils, and very large coil springs are used to suspend the North American Aerospace Defense Command's facilities deep within Cheyenne Mountain in Colorado.

Coil springs can also be used as torsion springs, transferring and storing mechanical energy through a twisting motion. Many mousetrap varieties involve the use of coil torsion springs.

The two different types of coil springs are compression and extension springs. Compression springs compress under a load, whereas extension springs lengthen, or extend, under the weight of a load. Extension springs are used primarily to keep two components together, while compression springs are used to keep components from touching.

The basic design of each of the two kinds of coil springs differs in an essential way. The spiral wires in compression springs are not touching when in a relaxed position and only become so under the stress of weight. In contrast, extension springs are designed so that their spiral wires are contiguous when there is no weight load and stretched apart under the stress of a weighted load.

Coil springs can be 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 elasticity of a spring enables it to return to its original position; however, this capability diminishes with use. In general, the larger the wire, the stronger the spring is. Spring strength can also be increased by making the coil diameter of the spring smaller.

Coil Springs Informational Video