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Medical springs

Produced with cleanroom precision, contamination control, and medical-grade materials, our medical springs and stampings meet the highest industry standards and are trusted worldwide.

Two scientists in cleanroom suits and masks inspect a coilspring under a magnifying glass in a laboratory, focusing intently on the task.

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A blurred figure in a cleanroom suit moves quickly in a sterile laboratory. The room is bright with fluorescent lights, equipment, and safety barriers.
MEDICAL DEVICE SPRING FORMING

Medical technology is in our DNA

At Lesjöfors, we manufacture and supply specialist medical springs and stampings from wire or strip material for disposable medical products, advanced medical equipment, and hygiene-related applications. Whatever the quantity or complexity, we deliver innovative solutions in manufacturing, cleanliness, packaging, and automation.

With a global network of specialized production plants, we combine extensive expertise with equipment dedicated to the manufacture of medical device springs. We achieve the highest quality standards through state-of-the-art facilities, advanced spring forming technologies, accredited laboratory testing, and internationally certified processes.

A clear insulin pen with a red cap on the bottom and a blue cap on the top, set against a plain white background.

Your trusted medical device spring manufacturer: Custom springs & stampings built for medical innovation

We deliver custom medical springs with accuracy and expertise, and our engineers are ready to support your next innovation.

Why choose Lesjöfors for medical spring design and manufacturing?

  • A technician in a white coat and blue hairnet operates a control panel in a high-tech lab. They focus on intricate machinery.

    Custom spring design

    We work closely with clients to deliver custom-engineered medical springs and wireforms, transforming ideas into safe, reliable, and high-performing devices.

  • Industrial setting showing a conveyor belt system with sleek, metallic design. The environment is clean and sterile, suggesting a high-tech facility.

    Certified quality

    ISO 13485-certified facilities, cleanroom production, and medical-grade materials ensure every spring meets the strictest global standards for safety and hygiene.

  • Industrial setting showing a conveyor belt system with sleek, metallic design. The environment is clean and sterile, suggesting a high-tech facility.

    Global production at scale

    With 50+ worldwide sites, we provide scalable manufacturing with consistent quality and efficient delivery, from rapid prototypes to high-volume runs.

Get a custom spring solution

Types of springs & stampings used in the medical industry

  • Metallic coil spring, also called compression spring, on a transparent background, showcasing a shiny, helical structure.

    Compression springs

    • All types: Cylindrical, convex, conical, concave, variable pitch
    • Wire diameter: 0.03 mm to 80 mm
    • Features: Round, square or rectangular wire profiles
    • Materials: Carbon steel, stainless steel, alloys
    • Stock & custom options available

     

    Compression springs
  • A shiny metal torsion spring with parallel ends is centered on a transparent background, showing its spiral design.

    Torsion springs

    • Designed for: torque with rotating movement
    • Wire diameter: 0.1 mm to 65 mm
    • Features: Legs can be straight, bent or custom‑formed
    • Materials: Carbon steel, stainless steel, alloy
    • Stock & custom options available
    Torsion springs
  • A sleek, silver metal wave spring featuring interwoven loops forms a cylindrical shape against a transparent background.

    Wave springs

    • Wire diameter: Flat or profiled wire from 0.5 x 0.2 mm up to 8.0 x 1.0 mm as standard. Potential to manufacture up to 1.7 x 4 mm - subject to material & geometry
    • Outer diameter: 7–250 mm (special sizes on request)
    • Materials: Stainless steel, carbon steel, alloys
    • End types: Plain and shim ends
    • Surface finishing: Heat treatment
    Wave springs
  • A power spring in silver, viewed from above on a white background. The concentric circles create a modern, minimalist design.

    Power springs

    • Types: Available in conventional, pre-stressed, and cross-curved configurations
    • Strip thickness: Up to 2 mm depending on design
    • Features: Delivers steady torque and smooth retraction over multiple cycles
    • Materials: Stainless steel & carbon steel with protective finishes
    • Stock & custom options available

     

    Power springs
  • A small silver metal deep drawn part is centered on a plain white background, highlighting its simplicity and industrial design.

    Deep drawn parts

    • Designed for: leak-tight performance with uniform wall thickness and smooth surfaces
    • Features: Seamless forming through progressive or transfer tooling
    • Materials: Stainless steel & aluminum
    • Production: Rapid sampling available for early geometry verification
    • Stock & custom options available
    Deep drawn parts
  • A sleek, metallic stamped part lies against a plain white background.

    Stamped parts

    • Thickness range: 0.05 mm to 5 mm
    • Precision: Qualified tool development ensures accuracy and repeatability
    • Production: Multislide pressings support complex bends at high speed
    • Scale: Low to high volume with cost-optimized production
    • Stock & custom options available



    Stamped parts
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Market leaders in medical device springs​

Lesjöfors is a global leader in medical device springs, combining certified manufacturing, innovation, and precision engineering to support safety-critical applications.

Springs and stampings for medical devices, hygiene and cosmetics products

A person using a pen injector to administer an insulin injection into their abdomen.

Injectors for drug administration

Compression, torsion, power, and constant force springs, along with stamped parts, ensure precise and safe drug dosing in injectors and pen injectors.

Person using a lancet on their fingertip against a white background, suggesting a blood sugar test.

Blood lancet devices

Lesjöfors springs deliver the cleanliness and tight tolerances required for reliable actuation and comfort in lancing devices and safety lancets.

A woman holds a glucose monitor displaying "5.5" next to a sensor on her arm, hinting at diabetes management. She wears a light blue tank top.

Continuous glucose monitoring

Constant force and compression springs ensure consistent sensor tension and accurate readings in glucose monitors and wearable sensors.

 

A healthcare professional in blue scrubs administers an injection into a patient's arm. The professional wears gloves.

Syringes

Reliable spring mechanics underpin controlled injection motion in syringes, designed with stringent quality standards for user safety.

A healthcare professional with gloves draws blood from an arm. A blue tourniquet is tied around the arm, and a needle is inserted into a vein.

Blood collection and infusion technology

Compression springs enable automatic needle retraction in butterfly cannulas, ensuring hygienic, secure blood collection and infusion.

 

A person holds a white inhaler against a soft blue background. The focus is on the inhaler.

Inhalers and pump sprays

Compression springs, stampings, and bent parts ensure hygienic, accurate dosing in inhalers and pump sprays, manufactured under strict cleanliness standards.

A healthcare professional's gloved hands carefully prepare a needle for an injection.

Surgical and therapeutic devices

Our precision springs support controlled motion in catheters and a wide range of surgical and minimally invasive instruments.

 

A healthcare professional operates an MRI machine as a patient lies inside. The setting is clinical, emphasizing precision and care in a hospital environment.

Diagnostic and laboratory equipment

From MRI to blood glucose meters and lancing devices, Lesjöfors springs provide reliable spring solutions for diagnostic and laboratory devices.

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Medical equipment and hospital systems

Our springs, wire forms, and stampings deliver dependable mechanical performance in ventilators, oxygen systems, imaging equipment, and clinical infrastructure.

A person is using a white pump to dispense hand sanitizer, the pump has a metal handle.

Medical hygiene products

Our technical springs help ensure performance and hygiene in sterilisation, cosmetic, and medical hygiene products through durability and cleanliness.

Technicians in white protective suits operate machinery in a sterile, modern laboratory.

Engineering excellence & world-class manufacturing

Our in-house engineering teams and modern facilities provide full control over the entire production process, from initial design to final inspection, including medical-grade manufacturing environments.

Medical springs and components are produced in dedicated, clean, and controlled areas by trained personnel wearing protective clothing. Where required, additional professional cleaning and controlled packaging are carried out in ISO-certified cleanrooms or validated white-room environments to ensure maximum protection.

Find the right spring solution

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Medical spring related news

Two workers in cleanroom suits carrying a small crate through a sterile manufacturing environment.

Lesjöfors China invests in advanced technologies to strengthen global medical manufacturing capabilities

Discover how Lesjöfors China has taken another significant step forward in developing its medical manufacturing capabilities, building on its ISO 13485 certification achieved in 2024.

Read the whole story
A woman holds a glucose monitor displaying "5.5" next to a sensor on her arm, hinting at diabetes management. She wears a light blue tank top.

Strengthening European medical capabilities with ISO 13485 certification

Learn how Lesjöfors’ dedication to medical sector customers has advanced further with the achievement of ISO 13485:2016 certification at its Värnamo manufacturing facility in Sweden.

Read the whole story

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