Ultrasonic welding of magnet assemblies

Magnets in a watertight or airtight shell. Ultrasound welding connects the components perfectly.

Magnets are enclosed in a solid housing.

Magnet assembly by ultrasonic welding | Goudsmit Magnetics

What is ultrasound welding?

Joining thermoplastic materials or metal films by means of high frequency sound waves is called ultrasound welding.

There are various techniques for this. We distinguish between:

  • sealing
  • cutting
  • inserting
  • punching
  • merging


Guaranteed watertight and airtight

Magnets with a housing made by ultrasound welding are watertight, airtight and aesthetically pleasing. Magnet assemblies are guaranteed to be reproducible.

Because there is hardly any heat released during the assembly process, the magnetic force of the permanent magnet is guaranteed.



  • Ultrasound welding is a good alternative to adhesives or screws.



Whether it’s a magnet for electronics, aerospace technology, automotive or medical industries -

because a magnet is always part of a bigger picture, you have found the right partner in Goudsmit Magnetics.



Magnet mechanically stronger with housing

Magnetic alloys are usually weak. Under continuous mechanical pressure, particles break off and the magnet loses volume. As a result, the magnetic field is weakened. A magnet with a protective housing or pot prevents this process.

A fully enclosed magnet system may also be necessary due to environmental requirements. Our team of experienced engineers examines which magnet assembly delivers the right magnetic performance for you while contributing to cost savings and longer service life. Through various production methods, material choices and magnetic alloys, we produce custom-made magnet assemblies.


We offer various assembly options to fit a magnet with a plastic, ferrous metal or non-ferrous metal housing.



Interested in magnets with housing?

Take advantage of our knowledge, skills and expertise in magnets and magnet components with plastic or metal housings.

Please contact us for more information or a quote.

E-mail or call our magnet experts: +31 (0)40 221 3283


Safe and reliable magnets

Reliability, quality and safety start at the source.

That’s why we work with a network of inspected and certified manufacturers and suppliers. We hold the following certificates: ISO 9001; IATF16949; AS9120. We guarantee the traceability of all our magnets.


Magnets that:

  • meet the right magnetic specifications
  • are high-quality and reliable
  • are certified and inspected


Goudsmit Magnetics, because a magnet is always part of a bigger picture!