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.
Stanley Spring and Stamping Corporation
Chicago, IL | 773-777-2600At Stanley Spring and Stamping Corporation we have experience in raw materials and metal fabrication. We are a Midwest manufacturer who is part of the American business community. Our coil springs are made from the highest quality material available. Our production ranges from a few prototypes to over fifty million parts. We provide the best quality in the industry.
Tollman Spring Company, Inc.
Bristol, CT | 860-583-1326Founded in 1945, Tollman’s expert engineering staff stands ready to work directly with your designers to meet customized spring design and cycle life requirements and achieve maximum performance of your products. In addition to helping you with the pre-production design of new parts, our engineering and design experts can help improve the performance of your existing products. Tollman’s up-front involvement in the design of customer products saves time and money.
Plymouth Spring Company, Inc.
Bristol, CT | 860-584-0594Plymouth Spring Company, founded in 1959, has continued to expand and grow through new technologies and attention to details to serve an ever larger customer base. Plymouth Spring completed the acquisition of the assets of the Bristol Spring Manufacturing Company and has integrated much of Bristol Spring’s highly skilled workforce, equipment and manufacturing capabilities of compression springs, torsion springs & extension springs into our existing facility.
Gilbert Spring Corporation
Chicago, IL | 800-860-6031Established in 1964 and now in our third generation of ownership, Gilbert Spring Corporation has remained dedicated to not only providing the utmost quality in our products but also offering excellent customer service and on-time delivery with short lead times. Our Secondary department can produce complex Springs and Wire/Strip Forms not suited for machine operations, and our on-site tooling department gives us the ability to quickly adapt to customer’s needs.
Ajax Wire Specialty Company, Inc.
Hicksville, NY | 855-966-2529At Ajax Wire, in addition to manufacturing a growing list of stock springs, we can produce springs to your specifications, samples or drawings in short or long runs. We also offer several assortments that come with cabinets and display boards. Compression springs, extension springs and torsion springs are examples of our products. Springs have been our only business for more than 85 years, Call us today!
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.
Coil Springs - All-Rite Spring CompanyIn 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.