All About Compression Springs
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All About Compression Springs

Views: 3     Author: Site Editor     Publish Time: 2022-03-18      Origin: Site

Compression Spring

As simple as they may seem, springs play a vital role in modern life. You can find them just about everywhere, including in nature. A wide range of everyday items depend on springs to function: retractable pens, shock absorbers, clocks, keyboards, window blinds, mattresses (and box springs, of course), door knobs, HVAC systems, trampolines, garage doors, and just about anything with a button.


In its most basic form, a spring is an elastic object, meaning that when someone, or something, pulls or pushes or hammers or otherwise manipulates it, it returns back to its original shape. Beyond that, springs can take on many forms, and not all springs look like springs.


In this blog, we explore compression springs along with their history, uses and manufacturing techniques.


What are Compression Springs?

When you think of what a spring looks like, you're probably imagining a compression spring. These simple coiled springs come in the shape of open-wound helixes, but beyond that they can be conical, elliptical, circular or even rectangular in cross section (magazine springs, for example). Appropriately, compression is the main function of compression springs. When compressed, they exert force in the opposite direction as they try to return to their resting lengths.


History of Compression Springs

Compression springs officially date back to 1763, when British inventor R. Tradwell filed the first patent for a coiled spring. Replacing the leaf spring in an automotive suspension system, Tradwell's first spring was a compression spring. Springmakers innovated in a variety of ways in Tradwell's time, but it wasn't until 1865 that the most logical use of a compression spring was patented. That is, of course, the mattress coil. After all, what's an invention worth if it doesn't contribute to the comfort of its user?


Types of Compression Springs

Today, compression springs are just about everywhere, and there are a wide variety of sub types.

Conical compression springs (also known as tapered springs) are used in applications where the fully compressed height of the spring needs to be minimized. Real-world uses for conical springs are everywhere, but you'll most often find springs of this shape in buttons and electrical contacts. Look inside the battery compartment of your remote control for an example.

Magazine springs, with an elliptical or rectangular cross section, are generally used in firearm magazines to push bullets toward the firing chamber. Their shape allows them to fit snugly into the rectangular magazines of most firearms. Surprisingly, magazine springs have another common use: when woven together, they create the basis for durable, flexible steel conveyor belts used in many industries.


Manufacturing Compression Springs

As with all springs, compression spring manufacturers must take into account several parameters. Product designers need to know the basics of the spring they want to produce before deciding on the production method. For example:

  • Spring diameter: the size of a circular spring's cross section

  • Spring index: a measure of the tightness of the spring coil

  • Spring rate: a measure of the stiffness of the spring

  • Ends: different ways to treat the ends of the wire after a spring is formed: closed, plain or ground, for example

  • Wire diameter: along with material, wire diameter does a lot to determine the spring rate

Most CNC spring coilers can coil springs with a variety of wire diameters, but none can coil any size wire.


We are a Compression Spring supplier. Please feel free to contact us if you need them!

Learn More

Take a look at these resources for more information on the springs and spring coilers discussed in this blog.

If you would like to know more, please contact us and we will reply to you at the first time.

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