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 Moreā€¦

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.

Leading Manufacturers

Lake Geneva, WI  |  262-249-7854

Established in 1972, our trusted company is a leading manufacturer, producing high quality coil springs, among others. Handcrafted prototypes are handled with care and precision in our Tool & Die Shop. Additionally, we provide assembly services and can produce special forms not fit for machine operations. Give us a call today to get a start on your next project, or visit our website.

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R & L Spring Company $$$

Woodstock, IL  |  888-795-2645

As a manufacturer of mechanical springs, Royal Coil can punch press, die tool & four-slide to produce an array of springs such as compression springs with diameters from .008 - .250, extension springs from .008 - .209 diameters, & torsion and double torsion springs ranging from .008 - .209 diameters. ISO 9001:2000 certified, we manufacture quality custom industrial springs such as coil springs.

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Royal Coil, Inc. $$$

Rockford, IL  |  815-968-3000

Quality is our number one priority. We have over 60 years of experience! You can trust our company to only offer the most durable, quality coil springs and other spring products in the industry. We work with many industries, including aerospace, military, commercial, and automotive. You will find that we will always have the perfect solution for you. Contact us for details!

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Rockford Spring Company $$$

Chicago, IL  |  800-969-7884

Sterling Spring has offered high-quality springs since 1953. Our product line includes compression springs, coil springs, torsion springs, extension springs and industrial springs. We offer just-in-time delivery and cost-effective prices, regardless of your ordering volume.

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Sterling Spring Corp. $$$

Muskego, WI  |  262-682-4711

It is our belief that all customers deserve the very best- whether large or small. We take the time to work with each individual customer to create the perfect springs solution for their needs. We will not turn away a customer from any industry, and we will use our expert engineering experience to help create the perfect spring product for you. Find out more by contacting us online today!

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WCS Industries $$$
placeholder image R & L Spring Company Royal Coil, Inc. Rockford Spring Company Sterling Spring Corp. WCS Industries

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