Metal Torsion Spring Manufacturing

As a long-standing and reliable steel spring manufacturer, Tennessee Spring and Metal has been manufacturing durable metal springs — and making torsion springs —  for nearly 60 years. Or, as we like to say around here: We build better mousetraps. Well, torsion springs for better mousetraps, that is!

What’s a torsion spring?

A torsion spring is a type of spring that works by twisting its end along its axis (imagine twisting a rubber band). Torsion springs are flexible objects that store mechanical energy when in use (when twisted). 

How do torsion springs work?

Unlike compression and expansion springs, which contract and expand, torsion springs are rotational. When primed (or twisted), torsion springs exert torque (rotational force) in the opposite direction, proportional to the amount (angle) it is twisted. The bigger the spring, the bigger the force.

Torsion spring materials

Steel — oil tempered wire — is the most common material used for torsion springs.

• Hard drawn steel is inexpensive but has a low working load.

• Music wire is a common and relatively inexpensive high-carbon steel alloy used for spring manufacture. It is cold drawn and offers uniform tensile strength.

• Spring steel is a standard industrial grade of steel specifically used for spring making. It exhibits good elastic and return properties.

• Stainless steel exhibits good corrosion resistance for specialty applications

• Specialty metals and alloys can be customized per application. This may include beryllium copper, beryllium nickel, niobium, tantalum, and titanium.

(Source: GlobalSpec)

Tennessee Spring and Metal torsion springs are available in various leg angles, leg orientations, leg lengths, and wire thicknesses. Our torsion springs can be custom-made to your exact specifications. Torsion springs can be made to accommodate specific load requirements and specialty coatings. From fine wire to heavy-duty, we create the perfect torsion springs for your products.

Common uses for torsion springs

• Mousetraps

• Clothespins

• Watches

• Mechanical clocks

• Clipboards

• Ratchets

Torsion springs are also used in a variety of heavy-duty products, which include:

• Ramps

• Door hinges

• Hatches and lids

• Garage doors

• Tailgates

• Automotive suspensions

A quick note about the supply chain: Tennessee Spring and Metal, like all spring manufacturers around the country, has been hit by supply chain issues and price increases. Through it all, we strive to be the most reliable industrial spring maker in America. Unfortunately, the supply of goods required for spring manufacturing is in critically short supply and the cost of raw materials is at an unprecedented high. We are working hard to serve our long-standing — and new customers — with honesty, transparency, and integrity. 

What can you do to help ensure a reliable spring supply? Send us your orders and usage forecasts as early as possible! 

For more information about Tennessee Spring and Metal or for torsion spring pricing information, contact us at 1-800-497-3545 or email us at info@tennesseespring.com.

Tennessee Spring and Metal is AS9100 Rev D, ISO 9001:2015 certified.