What are the strongest springs?

Compression springs manufactured from high-quality chrome silicon or chrome vanadium wire are the strongest springs. These steel alloys provide a chemical composition, surface property and tensile strength that when combined with spring size deliver outstandingly strong performance levels.

Do springs weaken under compression?

Springs do weaken under compression, over time. This is called relaxation and creep. Relaxation is when the stress level of the spring decreases over time at a constant deflection and thus loses force. Creep is when the spring loses length (increased deflection) at a constant force. This is time-dependent and can be predicted by our team.

How do I order a bespoke compression spring?

Speak to our experts on 01726 861444 or email heavysprings@lesjoforsab.com . We will talk you through every step of the process to ensure we maximise your spring application's success.

Heavy Duty Torsion Spring Manufacturers

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Custom heavy duty torsion springs

Leading manufacturer of heavy-duty and custom torsion springs for various industries.

Our advanced Torsion Spring Manufacturing infrastructure uniquely offers hot and cold coiling torsion spring facilities, establishing Lesjöfors Heavy Springs as the custom heavy duty torsion spring specialists.

Bespoke designed and manufactured to meet the needs of our customers, the ends of each torsion spring can be tailored to suit the application required.

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Torsion springs in different sizes with different hooks

Bespoke torsion springs specific for your application

As solution providers, our innovative teams deliver exceptional engineering expertise, custom designing your torsion spring to your exact specifications. Our engineers are leaders in their field, and our state-of-the-art manufacturing facilities ensure that your torsion spring performs with optimum success.

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What are heavy-duty torsion springs?

Manufactured from larger wire sizes, our torsion springs can exert an exceptionally large amount of torque (due to the size of the wire) when a load/pressure is placed on the legs of the torsion spring.

The ends (or legs) of a torsional spring are attached to other components within an application and when these components rotate, the centre of the spring stores the mechanical energy and forces the components back.

Torsion springs are coiled springs that are designed to have a rotational motion that exerts a torque or force.

How do torsion springs work?

The most common spring type when torque is required alongside a rotating movement, torsion springs must always be loaded in the direction of the spring wire, so that the spring body closes.

Most applications need a right-hand wound torsion spring mounted on one side and a left one on the other. However, in some cases, these two springs can be combined into a double torsion spring, which has one right and one left-hand coiled spring body connected to each other.

Due to the nature of the torsion spring design, they can be used across applications that work either through a clockwise or counter-clockwise motion.

As the expert heavy duty torsion spring suppliers, our teams bespoke engineer the torque to fit the application required.

Find more about spring terminology.

Manufacturing torsion springs

As leading torsion spring manufacturers with a 170 year manufacturing legacy we have heavily invested in hot and cold coil wire forming facilities to meet the demands of our customers and fulfill the production requirements from our skilled workforce.

CNC Coiling

Quality Assurance - ISO 14001, ISO 45001 and ISO 9001 certified

Engineered for maximum strength and durability

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Types of torsion springs

Torque is introduced by the end fitting or leg form and each leg form has a different name, which in turn leads to different types of torsion spring names.

Designed to store and release angular energy, torsion springs are commonly used to hold objects in place or push them back to an original position.

The most common types of torsion springs are:

Axial Torsion Spring

Double Torsion Spring

Tangential Torsion Spring

Radial Torsion Springs

Torsion spring leg forms

The torque is usually introduced by some kind of leg form, the basic leg forms are:

tangential legs

Axial legs

radial external legs

Radial overcentre legs

Ordering custom springs made easy

At Lesjofors, we make ordering custom springs a seamless process. Our team of experts is here to guide you through every step, ensuring you get the perfect springs for your specific needs.

Discuss your requirements with our team

To achieve the best results in developing your torsion springs, our engineers ask a multitude of questions to ensure the torsion spring performance achieves maximum success for the customer.

Custom spring design and manufacturing

Our experienced engineers will design and manufacture custom springs according to your specifications, ensuring a high-quality and reliable performance. The torsion spring design often goes through many cycles to guarantee the right design for the right purpose.

Stringent quality control and testing

This comprehensive review process, including meticulous attention to detail at every step, reinforces our commitment to delivering high-quality springs recognised in our ISO 9001, 14001 and 45001 certifications.

HOW TO ORDER CUSTOM SPRINGS

Lesjöfors Heavy Springs for reliable and heavy-duty performance

Our torsion springs are designed to deliver exceptional performance and durability, making them the premium choice for heavy-duty applications.

Design & development

Allocated team of experts ensuring that the final product meets all requirements and specifications.

Prototypes & samples

Creating a precision spring solution that enables you to test the requirements of your product before going into full production.

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Stainless steel wire with blurred background in spring factory

Heavy duty torsion spring materials

Stainless steel torsion springs are one of our most common torsion spring material requests from customers.

Our material scientists are on hand to discuss the environmental need and application of your coil spring and therefore the torsion spring material's disadvantages and advantages.

A very high yield type of material (able to withstand high amounts of stress and maximum load) is best suited for torsion springs and as stockists of the largest global supply of chrome silicon wire, we’re confident in our supply and range of material choices suited to your torsion spring material.

Carbon Spring Steel

Chrome Silicon

Chrome Vanadium

Stainless Steel

Nickel Alloys

Titanium Alloys

Copper Alloys

SEE ALL TYPES OF MATERIALS

Looking for custom torsion springs?

With a 170-year manufacturing legacy and state-of-the-art production and commercial infrastructure, we deliver a competitive environment dedicated to quality, accuracy and customer satisfaction, guaranteeing Lesjöfors Heavy Springs as the premium partner for your heavy duty spring solutions.

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Does your business require a different custom spring?

Lesjöfors Heavy Springs offers a consultancy service. Our teams are available to discuss any engineering and technical issues regarding heavy spring specifications. Explore our Heavy Duty Extension Spring and Compression Spring pages.

Heavy duty torsion spring FAQs

Why are torsion springs used?

Torsion springs are used because they provide rotational force (torque) and resist twisting or rotational motion, making them ideal for applications that require controlled angular movement.

How do I know what torsion spring I need?

To determine the appropriate torsion spring for your needs, you should start by measuring the wire diameter, outer diameter, and the length of the spring's body and legs. Consider the material of the spring, as different environments may require corrosion-resistant materials like stainless steel. Consulting with suppliers such as Lesjöfors that will provide expert guidance and custom solutions tailored to your specifications

What is the lead time?

The lead time for our torsion springs varies depending on the complexity of the design and the quantity required. We strive to deliver orders within the agreed-upon timeframe.

Do you offer samples & prototypes?

Yes, we can provide samples of our torsion springs for testing and evaluation. Contact us to discuss your sample requirements.

Still have questions?

Feel free to reach out to us.

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