The magnet as a design variable
Bring us into your project early
BOMATEC develops and supplies permanent magnets and magnet assemblies for medical device manufacturers: for drives and pumps, for position sensing in instruments and robotics, for magnetic couplings and for holding systems all the way to active implants.
IATF 16949, ISO 9001, ISO 14001 – certified quality management
Micro magnets from Ø 0.4 mm made of NdFeB and SmCo
Parylene C/N, gold, titanium – coatings for medical devices
Samples from 1 piece – ISO class 8 cleanroom, traceable
The earlier the magnet is considered, the more you can get out of it. Material, geometry, magnetization, coating and source of supply all depend on each other. We design them together with you, from feasibility study to series production.
Read more:
Micromagnets · Coated magnets · Magnetic couplings · Magnet assemblies
Expertise
Small, coated, ready to install
Micro magnets from Ø 0.4 mm: Rod, ring and disc magnets made of NdFeB and SmCo. Geometry measured on the part, magnetic values on the batch.
Coated magnets: Parylene C and N, gold and titanium for magnets in contact with the body, blood or cleaning agents.
Magnet assemblies: Magnets overmolded, insert-molded or assembled. One supplier for the magnetic function and a validated joining process.
Where our magnets work in medical devices
Drives and actuators
Rotor and segment magnets for brushless motors, pumps, valves and linear drives, for example in infusion and insulin pumps, handpieces or laboratory automation. Available as overmolded or assembled rotor assemblies on request. → Magnet assemblies · Magnet materials
Position sensing and sensors
Sensor magnets, resolvers and encoders for position and angle measurement in surgical instruments, surgical robotics and motorized joints. Resolvers work reliably even under sterilization and vibration.
Positioning and holding systems
Magnet pairs that reliably align two components with each other. For example in transcutaneous energy transfer for active implants: the magnets center the external transmitter coil over the implant so that the coupling is right. → Discuss your application
Magnetic couplings
Torque through a closed wall, without a shaft seal in the medium. For blood and laboratory pumps and for mounts that let you change disposables or attachments without tools. → Magnetic couplings in detail
Application Fields
Drives and actuators
Position sensing and sensors
Positioning and holding systems
Magnetic couplings
Case study medical technology
Smaller, just as strong, licence-free
Shrunk from 6 to 4 mm, just as strong and without an export licence: how BOMATEC took a magnetic coupling for an intravascular blood pump from prototype to series production.
Quality and documentation
Processes from the automotive industry, documentation for medical devices
Our quality management is certified to IATF 16949, ISO 9001 and ISO 14001. ISO 13485 requires the manufacturer to control its suppliers based on risk. It does not require the component supplier to hold its own ISO 13485 certification.
IATF 16949 requires risk analysis, process validation and series monitoring to a depth that often goes beyond the usual supplier requirements in medical technology. We build your quality assurance agreement on this basis.
Risk and planning
APQP and FMEA from project start, control plan for series production
Validation
IQ, OQ and PQ of the processes, MSA for the measuring equipment
Series release
First article inspection report, SPC in series production, inspection of every batch
Traceability
Back to the raw material batch, with material certificate and RoHS/REACH declaration
Supply chain and export controls: three routes to a predictable supply
Since April 2025, SmCo and NdFeB containing dysprosium or terbium from China require an export licence. The authority has up to 45 working days to decide, it often takes longer, and the rules change with politics. The duration can be planned for, its variability cannot. In an engineering study, we check magnet by magnet which route fits.
Route 1: Direct replacement
We replace NdFeB containing dysprosium or terbium with an NdFeB grade without these heavy rare earths. The geometry stays the same; together we check whether the grade is sufficient at your operating temperature. → HRE-free magnets
Route 2: Secure the supply
The part stays the same, the supply is secured: with a safety stock outside China or with the same material from a source outside China, where one exists. Predictable, but the risk remains. → Latest on export controls
Route 3: Redesign
We question the requirements and redesign the magnet and process so that no licence-required material is needed anymore. This can include a different material, such as ferrite or AlNiCo, or an assembly instead of a loose magnet. → Example: blood pump case study
- Own plant in Malaysia: Plastic-bonded magnets and assemblies. A general licence applies to assemblies, which significantly shortens the approval process.
- Consignment stock: The parts are stored at your site and remain our property until you withdraw them.
- Safety stock in Switzerland: A buffer against supply interruptions. Quantity and duration are based on your requirements.
Patrick Muschak
Sales Engineer Medical & Life Sciences
Philippe Scheuber
Head of Sales
INDEPENDENT IN ASIA
Swiss quality – produced in Malaysia
To give you a market advantage, our experienced experts in technology and production produce plastic-bonded permanent magnets and magnet assemblies in Swiss quality at our Malaysia site.
PERFORMANCE THAT DELIVERS
Success stories
We are dedicated to bespoke product development that meets the highest quality standards and is tailored to the needs of our customers and their applications. It is our collective commitment to success and a focus on complete customer satisfaction that fosters successful partnerships.