Torsion Springs

Single-Body and Double-Body Configurations

Torsion SpringsAt James Spring & Wire we carefully manufacture single-bodied and double-bodied 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. In general a torsion spring is used over a shaft or arbor, so when selection the appropriate mandrel size we recommend allowing roughly 10% clearance for various deflections. If your specific application requires a high deflection, a reduction in mandrel size is suggested to ensure proper performance.

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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 9001:2008

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