Products

Medical spring wire you can rely on

Bekaert has been delivering some of the best spring wire on the market for decades, to a wide range of industries including construction, automotive, agriculture, energy and medical devices, to name just a few.

The key to our continued success comes down to two words: collaboration and innovation. Our close working relationships with both spring manufacturers, design and pharmaceutical companies has resulted in continuous innovation in the field of medical spring wire production. 

Our steel-based medical spring wire product range has been designed for highly critical medical spring applications. Our products can deliver tight tolerances and higher spring ratings, increased accuracy and repeatability as well as increased fatigue-resistance and anti-corrosion properties – vital characteristics in drug delivery systems and dispensing applications.

We can provide you with the medical spring wire you need based on your rigorous specifications for both simple and complex design solutions from our off-the-shelf range or customize a solution to meet your specific requirements.

Key wire properties

We understand that your requirements can change and evolve over time, based on the nature of the applications where the spring wire is used and the changing standards and requirements that your product must fulfil to maintain its leading market position.

We pride ourselves on our ability to meet our customers’ needs. We approach our innovation and product development process from a strong foundation of four clear properties that define the characteristics of the medical spring wire we deliver to you:

  • What spring force is required by your medical device?
  • How long should it continue to perform?
  • Does it require increased corrosion resistance?
  • What are the design requirements you must meet?

Based on these varying parameters we can help you to find the best solution.

Talk to our experts to learn more

Wire Strength

Wire Strength

Dynamic requirements

Dynamic requirements

Pre- Coating

Pre- Coating

Wire Shape

Wire Shape

What are the design challenges of your medical device?

Accurate dosing of multiple injections

  • Desired spring property: A consistently high spring force at each injection, during the shelf life
  • Wire characteristic: Wires yielding to lower spring relaxation

Phosphate-coated by Bekaert

Phosphate-coated by Bekaert

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Zinc-coated by Bekaert

Zinc-coated by Bekaert

++

Bezinal® by Bekaert

Bezinal® by Bekaert

+++

Stainless Steel

Stainless Steel

=

Easy self-administering of high-viscosity drugs

  • Desired spring property: Increased spring force to have more design freedom and innovation possibilities.
  • Wire characteristic: Increased wire strength

Phosphate-coated by Bekaert

Phosphate-coated by Bekaert

+++

Zinc-coated by Bekaert

Zinc-coated by Bekaert

+++

Bezinal® by Bekaert

Bezinal® by Bekaert

+++

Stainless Steel

Stainless Steel

=

Exact and full dose injection

  • Desired Spring Property: Narrow spring tolerances
  • Wire Characteristic: Homogeneous wire properties

Phosphate-coated by Bekaert

Phosphate-coated by Bekaert

+++

Zinc-coated by Bekaert

Zinc-coated by Bekaert

+

Bezinal® by Bekaert

Bezinal® by Bekaert

+++

Stainless Steel

Stainless Steel

+++

Lifetime of spring exceeds lifetime of drugs

  • Desired spring property: Free of corrosion
  • Wire characteristic: Wire coating or composition to protect against corrosion

Phosphate-coated by Bekaert

Phosphate-coated by Bekaert

=

Zinc-coated by Bekaert

Zinc-coated by Bekaert

+

Bezinal® by Bekaert

Bezinal® by Bekaert

+++

Stainless Steel

Stainless Steel

+++

Complies to medical norms

  • Desired spring property: Risidue-free
  • Wire characteristic: Effective cleaning of the surface possible

Phosphate-coated by Bekaert

Phosphate-coated by Bekaert

+

Zinc-coated by Bekaert

Zinc-coated by Bekaert

+

Bezinal® by Bekaert

Bezinal® by Bekaert

+++

Stainless Steel

Stainless Steel

+++

Bezinal® spring wire versus stainless steel

We offer both custom-made and off-the-shelf solutions that deliver a range of advantages over traditional stainless steel spring wires, including:

  • 17% higher e-modulus and a higher maximum solid stress
  • Increased fatigue performance
  • Higher coiling speeds and a cleaner working environment
  • Corrosion resistance
  • Longer shelf-life
  • Excellent mechanical properties and ease of production
  • Stable prices
  • Smaller springs with higher strengths
  • High repeatability and accuracy in dosing applications
  • Ability to handle high-viscosity medications
  • Improved patient comfort thanks to shorter injection times

Bezinal coated spring wire is designed to support self-medication solutions for patients and everyday injection, inhaler and dispenser tools for caregivers.and learn how it compares to stainless steel spring wire.

Learn about Bezinal product applications

Download the Bezinal White Paper

Coated steel wire for medical springs

  • Our primary product of all
    your medical spring needs.
  • Meeting your exact requirements
    and working Environment.
  • Both off-the-shelf and custom-coated medical spring wires that deliver the characteristics you need in a cost-efficient manner.

Bezinal® XC For improved coilability

  • Zinc-aluminium pre-coated spring wire, designed for high-end and critical applications delivering.
  • superior corrosion resistance
    and cathodic protection
    during the production process
  • excellent coilability in applications where dimensional stability and repeatability are paramount

Bezinal® XP For coated-resistance

  • Zinc-aluminium coated spring wire, was developed for spring applications in highly humid or alkaline environments. 
  • High corrosion resistance
  •  Pre-coated for ease of processing,  
    Offering you
    a cleaner working environment
    and less downtime