Leading Flat Spring Manufacturers

Flat springs are small metal components that store and release energy. These springs are used for controlling deflection in small and restricted spaces. Flat springs are not coiled; instead, they are flat, which makes them different from extension and compression springs. Read More…

Flat Springs Flat springs, a common type of spring manufactured from strip material, derive their name from their shape, which generally has a high width-to-thickness ratio.

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...

R & L Spring Company $$$

Coiling 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.

Coiling Technologies, Inc. $$$

At Sterling Springs LLC, we specialize in manufacturing a wide variety of high-quality springs for various industries and applications. Our product line includes compression springs, coil springs, torsion springs, extension springs, and industrial springs. We take pride in our capabilities to produce springs in a wide range of sizes and shapes, from tiny springs for delicate medical devices to...

Sterling Spring LLC $$$

At Bloomingburg Spring & Wire Form, we manufacture custom compression, extension, torsion and double torsion springs, clock springs, wire forms, stampings and wire assemblies. Materials used include stainless steel, brass, bronze and other exotics by request. If you need immediate help, contact our 24-hour RUSH emergency service. Let us tame your biggest spring problem for you!

Bloomingburg Spring & Wire Form $$$

We offer years of combined experience and also provide production control, purchasing, and sales. We encourage creativity and empower both employees and customers. Our one-of-a-kind company provides many benefits for all our springs customers.

Anderson Quality Spring Manufacturing, Inc. $$$
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Flat springs are made of high carbon steel, nickel-silver steel, high nickel alloy, stainless steel, beryllium copper combination, and phosphor bronze material. Selecting the best type of material is important in spring manufacturing. For example, stainless steel provides better protection against corrosion, and high carbon steel offers durability and rigidity.

Flat Springs

Configurations of Flat Springs

Flat springs come in various configurations depending on the application of the product. These are:

  • Leaf Springs

    Leaf springs are a type of flat spring made from individual layers, or leaves, of metal. They are important components in automobiles, such as cars. Leaf springs are used in suspensions, automotive design, repair, and steering axles, and they reduce wear and tear on other vehicle parts. Leaf springs are made with high alloy steel or lighter-weight materials such as low-carbon steel.

    Leaf springs come in three basic types:

    • Mono-Leaf Springs

      Consists of one single steel plate placed uniformly from the center to the end of the spring.

    • Multi-Leaf Springs

      Consists of multiple steel plates or metal stacks of tapered leaves attached by a bolt.

    • Parabolic Springs

      Consists of stacked layers of steel attached to the vehicle through a spring eye on both sides of the spring.

    Leaf Springs
  • Flat Coil Springs

    Flat coil springs are used with a counterweight, which controls the actions of the valves. They are used in the automotive industry, such as in vehicle exhaust systems. They are designed to absorb shocks and are used in seating to provide support.

    Flat Coil Springs

Manufacturing Process of Flat Springs

The process of heating and treating a flat spring is categorized into four steps. These are:

  1. Shaping the Spring

    • The first step is shaping the spring. A flat annealed spring steel is measured and marked according to the requirements.
    • Polishing the spring is also required so that the spring will bend correctly.
    • The spring can be bent by either a cold or hot process.
    • After heat bending, it is important to let it cool down without water to not cause scaling in the spring.
  2. Hardening the Spring

    • The next step is hardening the spring, which can be done using a carburizing flame.
    • The spring is heated to cherry red by the flame and then quenched in the oil.
    • The heating temperature depends on the type of material used; however, a temperature around 1500 ℉ (815 °C) is ideal.
  3. Tempering the Spring

    • Tempering the spring reduces the hardness and brittleness and provides toughness and flexibility to the spring.
    • Before this process, brushing the spring is necessary to remove any scaling on the spring.
    • Tempering temperature depends on the type of spring material.
    • First, the spring is heated to a high temperature and let to cool dry.
    • Tempering can be done using lead baths, burning oil in a pan, or with a torch.
  4. Testing the Spring

    • Testing the spring is the last step of the process.
    • The spring is placed in the object where it belongs and tested to see if it can bend or flex.
    Testing the Spring

Working of Flat Springs

Flat springs are cupped and have a little curvature that stores mechanical energy. When these springs are exposed to a weighted object, the cupped design causes compression. This compression allows the flat spring to store and release the object's energy. The cupped design will also exert a force against the object being used.

Applications of Flat Springs

Flat springs come in various shapes and sizes according to their applications. They are ideal for use in limited areas. Flat springs are widely used in motors, counterbalances, switches, office equipment, generators, doors, electrical contacts, leaf springs, disc washers, hold downs, shims, clips, and more.

Choosing the Right Flat Springs Supplier

To make sure you have the most beneficial outcome when purchasing flat springs from a flat spring supplier, it is important to compare at least 4 companies using our list of flat spring suppliers. Each flat spring supplier has a business profile page that highlights their areas of experience and capabilities and a contact form to directly communicate with the supplier for more information or request a quote. Review each flat springs company website using our proprietary website previewer to get an idea of what each company specializes in, and then use our simple RFQ form to contact multiple flat springs companies with the same message.

Flat Springs Informational Video


Spring Power Pages

Coil Springs

Coil Springs

A coil spring is an elastic element made of metal or heavy plastic in the form of curls or ringlets of round wire or cord that is wrapped around a cylinder. The winding of a coil spring can be loose or tight in a helical shape depending on the application for which it is made...

Compression Springs

Compression Springs

Coil springs called compression springs can store mechanical energy when they are compressed. These open-coiled, helical springs provide resistance to compressive loading. When these springs are...

Extension Springs

Extension Springs

Extension springs are helical wound springs that are so closely coiled together to create initial tension in the coils. This initial tension creates resistance against the force applied to its ends for extension. The initial tension helps determine how closely and...

Metal Springs

Metal Springs

Springs are a flexible machine element that store mechanical energy when subjected to tensile, compressive, bending, or torsional forces. When the spring is deflected, it stores energy and at the same time exerts an opposing force...

Torsion Springs

Torsion Springs

A torsion spring is a mechanical device that stores and releases rotational energy. Each end of the torsion spring is connected to a mechanical component. As the spring is rotated around its axis on one end, the winding of the spring is tightened and stores potential energy...

Wire Forming

Wire Forming

Wire forming is a method for applying force to change the contour of wire by bending, swaging, piercing, chamfering, shearing, or other techniques. The various techniques for wire forming can produce any type of shape, form, or configuration...

Contract Manufacturing

Contract Manufacturing Animation

Contract manufacturing is a business model where a company hires a manufacturer to produce its products or components. It is an outsourcing method for producing products by taking advantage of the resources and expertise of an...

Metal Mesh

Metal Mesh

The phrase "wire mesh" describes two- or three-dimensional structures constructed of two or more metallic wires connected by various techniques. In a wide range of settings, wire mesh products are...

Wire Racks

Wire Racks

A wire rack is a level wire form utilized to stock and exhibit a number of products, usually retail. The bottom surface on which such goods are stored is made of several latticed or interlaced metal strands...

Metal Forming Services

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