Pressings

Autoinjectors, drug delivery devices, or pen injectors utilize compression springs.
The use of technical springs ensures exact dosing of the drug as well as a high level of safety for the user. We offer automated and clean manufacturing solutions for economical largescale production.

Constant Force Springs are manufactured from flat strip material and spooled to a specific curvature matching the needed pull force. There is practically no limit on extension speed and acceleration. The springs can be fitted in a number of ways and extended partly or completely.
A common applicat...

Stainless steel gas springs function the same as their common hydraulic counterparts, but give an alternative when operating under rough conditions such as off-shore and other outdoor exposure applications. Other commons application areas for stainless steel gas spring include health care products, food in...

In a groundbreaking achievement for the spring manufacturing sector, Lesjöfors Group has become the first spring and pressing manufacturer globally to have its near-term climate targets officially validated by the Science Based Targets initiative (SBTi). This recognition marks a significant step in the company’s commitment to climate action and aligns its strategy with the goals of the Paris Agreement to limit global warming to 1.5°C.

Lesjöfors Pocket Guide No. 1 – How to accelerate Sustainability?

- Gives an introduction into the field of Sustainability related topics in business operations and their successful management- Provides an overview of Lesjöfors’ focus areas and objectives in connection with sustainable business and growth
- Gives a first approach to the perspective of emissions in the Value Chain and Eco-Design
- Introduces the Lesjöfors Roadmap towards 2030
- Definitions

As part of its commitment to sustainable innovation, Lesjöfors has launched a strategic initiative aimed at reducing environmental impact across its operations. Central to this effort is the integration of Life Cycle Analysis (LCA) and eco-design principles, which are becoming increasingly vital in the development of environmentally responsible products.

Lesjöfors Pocket Guide No. 2 – Sustainability as a Driver of Future Growth and Resilience


- Gives first explanations to interlinkages of sustainable business operations, future growth opportunities and resilience- 5-step approach for local leadership towards Climate impact reductions
- Gives an introduction to the current status of Climate Action with a focus on Science Based Targets initiative
- Special section on Footprint methodology, Lesjöfors site and product footprints and answers to the question of WHY to reduce the footprint
- Contains information on Climate Disclosure Reporting (CDP)
- Gives an overview of coming events and regulations, which lead us to expanded reporting disclosures and stronger interaction with stakeholders
- Revised Sustainability Terminology

Lesjöfors has reached a major milestone in its commitment to the medical technology sector by achieving ISO 13485:2016 certification at its Värnamo manufacturing facility in Sweden. This marks the first ISO 13485-certified site in Europe for the group, reinforcing its dedication to delivering high-quality, compliant solutions for medical device manufacturers.

With this certification, Lesjöfors now offers medically compliant production across all major global regions—Europe joins Asia and North America, where facilities in China, Singapore, and the USA are already certified.

Lesjöfors Pocket Guide No. 3 – Innovation with Sustainability in mind


- Strengthens what innovation with sustainability in mind means considering the UN’s 17 Sustainable Development Goals (SDGs) and the Lesjöfors strategy- Updated Roadmap to 2030
- Explains Eco-Design strategies and principles in order to reduce their carbon footprint
- Focuses on Product Carbon Footprint as part of the customer offer
- Give explanations on PCF
 template, Life cycle assessment and Eco-Design as source of innovation
- Revised Sustainability Terminology- Gives a forecast of the Sustainable Innovation Events in the coming years

Engineering medical devices requires absolute precision, reliability, and cleanliness—especially when it comes to small yet essential components like springs. Whether it's compression springs in inhalers or constant force springs in glucose monitors, these tiny parts play a crucial role in ensuring functionality across a wide spectrum of healthcare technologies.

At Lesjöfors, we bring together advanced cleanroom manufacturing, rigorous contamination control, and high-performance medical-grade materials to produce springs that meet the most stringent industry standards. Our custom-engineered solutions are trusted by leading medical device manufacturers worldwide, supporting applications from autoinjectors to wearable health monitors.

In this article, we’ll delve into the role springs play in medical devices, spotlight the most commonly used types, and explore the materials that offer optimal performance in demanding healthcare environments.

This brochure shows the range of technical springs, bent parts and stamped parts and their use in medical applications and equipment.

Through state-of-the-art production facilities and production technology, we have a wide range of products, that use the latest laboratory and camera technology and certified standards. This guarantees the highest quality, precision, and long service life of our products, even in large-scale production. No matter the quantity and application, we create optimum solutions for manufacturing, cleanliness, standard and special packaging and automation.

The Lesjöfors Group are world-leaders in spring and pressing manufacture. One of the largest spring corporations in the world, established in 1675 with spring manufacture commencing in 1852, the group’s product portfolio includes springs, gas springs, metal belts and pressings across an extensive range of wire sizes. 

Committed to manufacturing excellence, reliability and customer service, their global spring manufacturing and technological development network, is dedicated to world-leading products. 

Our ambition is to be the most sustainable spring and pressing company in the world. Discover more about our journey in this brochure. 

Important mark in our Sustainability Roadmap towards 2030 – SBTi approves our climate goals In a first for the spring manufacturing industry, the Lesjöfors Group , s near-term GHG emission reduction targets have officially been validated by the Science Based Targets initiative (SBTi). Lesjöfors is fully committed to achieving the Paris Agreement goals of limiting global warming to 1.5 °C above pre-industrial levels.