Torsion

Torsion

  • Wire thicknesses: 0.30 mm – 6.00 mm
  • Wire cross sections:Round,Rectangular,Sqaure and Ova
  • Materials: Carbon steel, Stainless wires, non-ferrous spring wires,special alloys
  • Application example: Actuators, Door locking systems, sun protection systems,WM Top Lids

About Torsion Springs

Torsion springs store and release rotational energy by twisting. They apply torque in the opposite direction when twisted and are used in hinges, clothespins, and automotive applications. Made from durable materials like stainless or carbon steel, they provide controlled motion and resistance.

How Torsion Springs Work

Torsion springs work by storing and releasing angular energy or statically hold a mechanism in place by deflecting the legs about the body centerline axis. They offer resistance to twist or rotationally applied force. A spring of this type will reduce in body diameter and increase slightly in body length when deflected in the preferred direction of the fabricate

Life Expectancy of a Torsion Spring

The life expectancy of a torsion spring largely depends on its material, design, and the amount of stress it endures during operation. The majority of torsion springs last 10-15 years, or a minimum of 5,000 to 25,000 cycles. High-quality torsion springs made from durable materials can last anywhere from several thousand to millions of cycles, depending on the specific application. Factors such as environmental conditions, frequency of use, and the magnitude of applied torque also play significant roles in their longevity. Regular maintenance and proper installation can further extend their lifespan, ensuring reliable performance over time.

Types of Torsion Springs: Single vs Double Torsion Springs

There are single body torsion springs and double body torsion springs. A single body torsion spring has one core coiled area with two ends. A double body torsion spring has two coiled areas connected by a bridge. Each body in a double torsion spring has one end that can be tailored to individual needs. Double torsion springs have a number of advantages over single torsion springs, including greater strength and the ability provide more force. They are frequently used places where reliability is required along with safety. Single body torsion springs are common across manufacturers, but it is rare to find a double body torsion spring manufacturer. Ranoson Springs Pvt. Ltd.offers both single and double body torsion springs.

Torsion Spring Configurations

Torsion springs can be configured in several distinct ways to meet specific application needs, including straight torsion springs, straight offset torsion springs, and hinged torsion springs. Straight torsion springs have a simple, uniform design, allowing for effective torque generation along their length. Straight offset torsion springs, on the other hand, feature an offset design that can provide additional clearance or fit in tighter spaces while still delivering necessary rotational

Torsion Spring End Types

Like other coiled springs, torsion springs can have a variety of end types depending on the application and industry they’re used in. Some of the most common end types include straight, hook ends, and hinge ends. Custom or specialty ends can also be produced by Ranoson Springs

Material

Brass and steel are the most common torsion spring materials. However, the alloy selected for wire production is determined by the application, weather, temperature and other environmental considerations. Don’t see what you need? Contact us for a full list.

Wire Sizes & End Types

Our torsion springs can be manufactured with a selection of commonly requested or specialty finishes.

Wire Types

We produce extension springs from both bar and wire stock in a variety of thicknesses through both hot and

Typical Torsion Spring Tolerances

Tolerance values for torsion springs depend on the body-diameter to wire-diameter ratio and are about +/- 10% in torque and +/- 5% in diameter.

How Are Torsion Springs Designed & Configured?

The torsion spring configuration is designed for the purpose of storing and releasing angular energy or for the purpose of statically holding a mechanism in place
by deflecting the legs about the body center line axis. A spring of this type will reduce in body diameter and increase slightly in body length when deflected in the
preferred direction of the fabricated wind.
When designing a torsion spring, it’s important to consider your application and whether you will need round, rectangular, or shaped wire, such as square wire.
The simplest and most common torsion spring designs are single body torsion springs made from rectangular wire with straight ends, although this design format
can be modified with bends and formed shaped.
The direction of the fabricated wind can also be important for torsion spring applications due to the leg bearing/attachment location having to be on the left or right
side upon assembly. A torsion spring is normally supported by a rod (mandrel) that is coincident with the theoretical hingeline of the final product.
Double torsion spring designs are more complex and will need to consider manufacturing method. Double torsion springs are coiled from the center, as opposed
to single torsion springs, which are coiled from the ends. For details on torsion spring design for both single and double body torsion springs, reach out to our
engineering team through our Ask an Expert form.

How to Measure a Torsion Spring

Correct dimensions are crucial in identifying the right spring for your application. Use the steps and diagram below to measure accurately measure your
torsion springs.

  • Hold the spring in one hand, and the calipers in the other hand.
  • Place the calliper “teeth” on the inside diameter. This is called the Inside Diameter (I.D.).
  •  Place the calipers on the “leg” to measure the wire. This is called Material Size (or Wire Diameter).
  •  Place the calipers on the working coils of the spring. This is called the Body Length. Place the calipers on the working coils of the spring. This is called
    the Body Length.
  • Count the total coils, beginning at one end, just under where the leg leaves the body. Count to the other end, all full coils, and any fraction thereof.
    This is called the Number of Coils and determines leg position. i.e. 90°, 180°, etc.
  • Determine the direction of the coil (Wind Direction). See diagram for hand/finger illustration. Right Hand Wind or Left Hand Wind.

Certificates / Downloads

General Spring Guides

Wire Size Converter

DIN EN ISO 14001:2015

ISO 9001:2015

Contact

Works

Ranoson Springs Private Limited .
Plot No. 157-160 Udyog Kendra - 2
Ecotech - 3 Greater Noida
Uttar Pradesh , India , 201306

Registered Office

1/39 Old Rajindar Nagar
New Delhi 110060

+91 99710 50347

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