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…

Leading Manufacturers
R & L Spring Company
Lake Geneva, WI | 262-249-7854R&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.

All-Rite Spring Company
Spring Grove, IL | 815-675-1350When it comes to springs, you'll find exactly what you are looking for with us! We have years of experience manufacturing high quality products from a variety of materials, in a variety of sizes and shapes. We strive to offer exactly what spring types and configurations our customers need with accuracy in quality and cost-effectiveness. Find out more by giving us a call today!

Apex Spring & Stamping Corporation
Grand Rapids, MI | 616-453-5463Apex Spring & Stamping is a certified minority owned company that manufacturers springs, stampings, wire forms, clips, and fasteners. Our core industries include automotive, office furniture, medical, recreational, consumer goods, and appliances. We also specialize in value added assembly and prototyping. Our engineering team will ensure your part is both functional and cost-effective. IATF 16949 Certified.

Coiling Technologies, Inc.
Houston, TX | 713-849-4000Coiling Technologies, Inc. has the experience and expertise to design and engineer the custom springs to meet your specific requirements. We are a leading manufacturer of high-tech, specialized springs and we are committed to providing quality products with fast lead times. Our automated process allows us to produce the reliable springs you need.

Gifford Spring Company
Garland, TX | 888-213-7231Gifford Spring Company manufactures coil springs, flat springs, torsion springs, wire forms and hooks. We can hand-form springs for small quantities of intricately designed parts or mass-produced high-quality springs using CNC machining. We’d be happy to design a spring for you based on the design or concept you require. Call us today!

Century Spring Manufacturing Company, Inc.
Bristol, CT | 800-977-7464At Century Spring, we are ISO 9002 approved. That shows our commitment to quality. We produce made-to-order extension springs, torsion springs and compression springs that are competitively priced and delivered immediately. We have the answer to all your spring needs.

Perfection Spring & Stamping
Mt. Prospect, IL | 847-437-3900We have offered financial stability, design and engineering excellence, flexibility to adapt and reinvent, delivery and service, and quality since 1955. Our mission is to support our customers by providing innovative, cost effective, engineered solutions, prototypes, components and assemblies, enabling our respective business partners to achieve superior financial results and quality growth.

Titan Spring & Wire Products Inc.
Hayden, ID | 208-209-2200Titan Spring & Wire Products, Inc manufacture precision made quality springs all certified to AS9100 Rev "B" and to ISO 9001:2008 standards and service a number of industries. Titan also manufactures quality and affordable Bellville washers and short run stampings. A die shop is on the premises complete with EDM machines. Call or visit Titan’s website for more information.

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.