Torsion Spring Manufacturers

Q: What are the Industrial Applications of Torsion Springs?

Medical Devices: Torsion springs are used in hospital beds and wheelchair lifts, in addition to surgical and diagnostic equipment.nnAerospace: Flight control surfaces, landing gear, and satellites are all examples of how torsion springs are used in aerospace.nnAgriculture: Torsion springs can be found in various agricultural machinery examples, such as combine harvesters, tractors, ploughs, and in fertiliser spreaders and sprayers.nnEveryday Items: Torsion springs have a variety of uses in everyday applications. For instance, within a door handle, where the spring returns the handle to its original position after being opened. The spring in a traditional clothes peg is also a torsion spring.nnAutomotive: Torsion springs can be found in the return mechanisms of doors and fuel caps within brake systems, clutches, and suspension systems.nnConstruction: These springs are used in many forms of construction equipment, within window and door mechanisms, and in safety locking mechanisms.

With over 70 years of expertise, we have established ourselves as one of the most reliable spring manufacturers in the UK. We have a wealth of experience in providing ISO 9001-certified solutions for a range of different industries, from specialised bespoke products to higher volume stock orders.

Custom Torsion Springs & High-Quality Stock Solutions

We supply both custom springs and an extensive range of stock solutions, catering to various industrial needs. We manufacture and supply both single coil torsion springs and double coil torsion springs, which are two single torsion springs connected. Whether you require a unique component tailored to demanding conditions or a ready-to-ship option, our team is ready to assist.

Do You Need Bespoke Torsion Springs?

There are certain applications that may require the design and manufacture of a bespoke component, especially for those with unique demands or environmental considerations. We offer comprehensive design and engineering support, from initial concept to end product.

Our engineering team use advanced CAD CAM software to create custom torsion springs in a range of shapes and sizes, including small, large, extended length and double torsion springs. Our torsion springs are made in dimensions of 0.15mm to 8mm with wire, and the body diameter, length, pitch and choice of material are all down to customer specifications. We take into account the environmental conditions, stresses, life-cycle requirements and any other relevant factors to create springs that are adapted to their application.

View Our Torsion Spring Catalogue

As part of the internationally respected Lesjöfors Group, we supply both standard torsion springs in the fine to medium weight category and custom torsion spring solutions. Browse our full selection of wire springs in our spring catalogue, where you can find:

Stainless Steel Torsion Springs (EN 10270-3-1.4310)

A durable option suited to demanding, higher heat, and corrosive conditions

Performs well up to 150 °C, safe up to 250 °C

Handles light movement and some dynamic use

Avoid overloading in higher temperatures or intense use
See the full range on pages 91-99 of our catalogue

When using torsion springs, performance and longevity are influenced by the applied torque angle. Refer to the following guidelines for lifespan expectations:

100% of max angle torque usage (w): Up to 10,000 cycles

80% of max angle torque usage: 200,000 – 400,000 cycles

70% of max angle torque usage: Near-infinite lifespan

The maximum permitted torque is denoted Mn, and the torque angle at Mn is shown as w in technical tables. Use of the spring within 70-80% of its maximum torque range significantly improves its durability.

Experienced Torsion Spring Suppliers

With over 70 years of experience in creating torsion springs, we are experts in producing components for demanding applications across the most high-pressure environments. Our modern CNC equipment allows us to quickly produce torsion springs with excellent precision and minimal finishing.

Torsion springs have a linear spring characteristic, meaning the torque output increases proportionally with the degree of rotation. This makes them ideal for consistent, reliable mechanical energy storage and release in rotational systems.

From concept through to final product, our team ensures your springs are durable, reliable, and able to withstand their intended working conditions.

Comprehensive Services & Dedicated Customer Support

In addition to our manufacturing capabilities, we provide a full suite of services designed to streamline the production cycle. This includes surface treatments, sub-assembly services, and prototyping for development and testing.

We manufacture a broad range of different springs, including compression springs and tension springs, allowing you to source all your spring components from a single trusted supplier. Whatever your spring requirements, European Springs & Pressings ensure precision, reliability, and expert support from start to finish.

Frequently asked questions

What Are Torsion Springs?

Torsion springs are a type of coiled spring that work via a rotational motion known as torsion. They are used when there is a need for rotational movements of components.

The most common design for a torsion spring is the cylindrical wound design, which consists of a coiled metal wire, in a left- or right-hand, clockwise or anti-clockwise direction and usually has legs, to which a force can be applied.

How Do Torsion Springs Work?

Torsion springs are usually mounted upon a Mandrel and the force is applied to the spring axially. The rotational motion allows a flexible object to store mechanical energy. This exerts a force, known as torque, in the opposite direction, proportional to the amount it is rotated. As components rotate around the centre of the spring, it will attempt to push them back to their original position.

Torsion springs can be made single torsion or double torsion, which doubles the output force.

Torsion springs have a linear spring characteristic, i.e. if a spring is turned 10˚ to provide torque of 1 Nmm, the same spring will provide a torque of 2 Nmm at 20˚ rotation.

Torque is equal to force x leg length: M = F x A. The closer to the end of the leg the load is applied, the less counterforce is created.

What is the Difference Between Single and Double Torsion Springs?

Single torsion springs consist of one coil and are suitable for applications with moderate torque needs. Double torsion springs combine two coils, which increases torque output and improves balance.

What are the Industrial Applications of Torsion Springs?

Medical Devices: Torsion springs are used in hospital beds and wheelchair lifts, in addition to surgical and diagnostic equipment.

Aerospace: Flight control surfaces, landing gear, and satellites are all examples of how torsion springs are used in aerospace.

Agriculture: Torsion springs can be found in various agricultural machinery examples, such as combine harvesters, tractors, ploughs, and in fertiliser spreaders and sprayers.

Everyday Items: Torsion springs have a variety of uses in everyday applications. For instance, within a door handle, where the spring returns the handle to its original position after being opened. The spring in a traditional clothes peg is also a torsion spring.

Automotive: Torsion springs can be found in the return mechanisms of doors and fuel caps within brake systems, clutches, and suspension systems.

Construction: These springs are used in many forms of construction equipment, within window and door mechanisms, and in safety locking mechanisms.

How Long Do Torsion Springs Last?

Lifespans of torsion springs can vary depending on the application, material, and operating conditions. We recommend regular inspection and replacement after extensive use or visible wear. High-stress environments have the potential to shorten the spring’s longevity, so preventative maintenance is essential.