Torsion Springs

Torsion springs are helical springs, also known as coil springs. They are designed to exert torque in a radial direction. They are the opposite of compression springs which are designed to keep mechanisms apart. Torsional springs hold two mechanisms together and their tightness is proportional to the energy stored inside of it. Tension must be removed in order for the spring to release this stored energy.

Single & Double-Helical Spring Configurations

Torsion SpringsWe carefully manufacture single-bodied and double-helical torsion springs with different end configurations including straight, offset, and hinge ends. Based on your custom application needs, torsion springs can be produced with wire diameters ranging from 0.005″ to 0.250″, and designed to rotate either counter-clockwise or clockwise. Operating environment, life expectancy, and spring load are taken into account when designing your custom springs. Our design allows torsion springs to be used in the direction that winds the coil. Generally, a torsion spring is used over a shaft or arbor, so when selecting the appropriate mandrel size we recommend allowing roughly 10% clearance for various deflections. If your application requires a high deflection, a reduction in mandrel size is suggested to ensure proper performance.

At James Spring & Wire, we offer springs in a variety of materials and sizes for your convenience – we want to be your one-stop shop for any of your spring needs. There are several materials to choose from, including Beryllium Copper, Elgiloy, Hastelloy, Chrome Silicone, Chrome Vanadium, and much more.

Customized Surface Treatment Options

Need surface treatment for your torsion springs? James Spring & Wire has the capability to provide several surface treatment options for your springs, including anodizing, bead blasting, passivation, electro-polish, powder coating, rust prevention, deburring, color coding, laser etching, and more. We also offer torsion spring plating, with finishes such as black oxide, cadmium, chrome, gold, nickel, phosphate, tin, and zinc.

As an ISO-certified torsion spring manufacturer, our quality control is second to none. We are proud to offer nothing but the highest quality springs and torsion spring treatments for all your application needs. Contact us today to learn more!


Materials List

Beryllium Copper, Chrome Silicon, Chrome Vanadium, Elgiloy, Hard Drawn Wire, Hastelloy, Inconel, Monel, MP35N, Music Wire, Nitinol, Oil Tempered, Phosphor Bronze, Stainless Steel (17-7 SS, 302 SS, 304 SS, 316 SS, & 316L SS), Titanium

Wire Diameter

Springs are available in wire sizes ranging from 0.005" to 0.250″

Equipment List

CNC Spring Coilers

Torsion Spring end Configurations

Custom Shaped Ends
Hinge Ends
Offset Ends
Short Hook Ends
Straight Ends


ISO 9001:2015

Quality Control

Material and Part Certifications, Production Part Approval Process (PPAP), Statistical Process Control (SPC)

Surface Treatment

Bead Blasting
Citric & Nitric Passivation
Cleaning - Conventional and Ultrasonic
Color Coding
Deburr - Vibratory & Tumble
Electro Polish
Laser Etching
Powder Coating
Rust Preventative
Shot Peening
Stress Relieving & Heat Treating


Black Oxide

Frequently Asked Questions About Torsion Spring

Torsion springs are used in a variety of applications, including automotive, aerospace, medical devices, and industrial equipment. They are designed to resist twisting or torque and are commonly used to provide rotational force or maintain tension in a system.

Torsion springs can be manufactured from a variety of materials, including stainless steel, carbon steel, alloy steel, and brass. The material used will depend on the specific application and the required performance characteristics of the spring.

There are several factors that should be considered when designing a torsion spring, including the spring’s intended use, the desired spring rate, the material used, the amount of torque required, and the available space for the spring.

The spring rate is the amount of torque required to rotate the spring by a certain angle. It is typically measured in pounds per inch (lbs/in) or newton-meters per degree (N-m/°).

The maximum torque a torsion spring can handle will depend on several factors, including the material used, the wire diameter, and the spring’s dimensions. It is important to carefully consider the maximum torque when designing a torsion spring to ensure that it will function properly and safely.

The manufacturing process typically involves coiling a wire around a mandrel, heat treating the spring to improve its strength and durability, and then forming the ends into legs or hooks to attach to the component or system. The legs or hooks are then rotated to generate torque. Learn more about the torsion spring manufacturing process.

Yes, custom springs can be manufactured to meet your specific requirements for torque capacity, spring rate, and other performance characteristics. Custom torsion springs are typically designed using computer-aided design (CAD) software and are manufactured using specialized equipment and techniques.

The lead time for manufacturing torsion springs will depend on the complexity of the spring, the quantity required, and other factors. Most torsion springs can be manufactured within 4-6 weeks.