Magnetfabrik Bonn is a midsize family-run company founded more than 85 years ago. From the very beginning, we have been a pioneer in the field of permanent magnet production– a role which we continue to fulfill today.We draw on this unique development and production experience as well as the expertise gained from thousands of real-life cases to offer our customers reliable, tailor-made, economic solutions.
Our operations focus on application-related consultancy and the development and manufacture of high-quality products and systems, specifically in the field of polymer-bonded permanent magnets. We rely on research and development, the special skills of our employees, intensive dialogue with our customers and highly automated production at our Bonn site.
We are a team of almost 150 highly motivated specialists who offer you a comprehensive range of services.
Discover the variety of our magnetic materials!
We have been your expert for magnets for over 85 years.
The test centre will be equipped with an additional larger 3D tactile measuring machine
IATF16949: 2016 Certification of our quality management system according to the new IATF standard
In order to improve the flow of materials and create additional production areas, we have moved our material processing into a newly constructed hall.
The 85th anniversary is celebrated in an internal ceremony
Restructuring of the management structure and the organizational structure .
Relocation of material preparation to a newly built hall to improve the material flow and create additional production space
Construction and occupation of the pilot plant with own production and testing equipment
Magnetfabrik Bonn celebrates 80 year of operation.
Georg Grönefeld passes away, until his last position as senior director he was a consultant in the company
An extension building for production and toolmaking is completed and is occupied
Magnetfabrik Bonn celebrates 75 years of operation.
Certification of our environment management system in accordance with ISO 14001:2004.
Certification of our quality management system in accordance with ISO/TS 16949: 2002.
Certification of our quality management system in accordance with QS 9000 and VDA 6.1.
Certification of our quality management system in accordance with DIN ISO 9001.
Completion of the conversion of the quality management from the customer-oriented organization according to Q101 to ISO9001
After obtaining a doctorate in natural sciences, Dr. Martin Grönefeld became actively involved in the company.
Start of production of rare earth magnets.
Magnetfabrik Bonn supplied a magnet system for a measurement system developed by Professor von Zahn which traveled to Venus with the NASA probe Pioneer Venus 2 and was successfully used to measure the composition of the atmosphere.
Start of production of ceramic hard ferrites.
Death of the founder Gerhard Grönefeld. His 23-year-old son Georg Grönefeld took over the management of the business.
Setup of a sintering and casting unit. Start of production of AlNiCo magnets.
Resumption of the production of permanent magnets.
To ensure the long-term survival of the Bonn production site in a competitive international environment, we pursue a clear strategy based on two fundamental principles.
Our development activities actively target tomorrow’s needs. Our focus lies in the production of polymer-bonded permanent magnets and magnet systems. However, we are also able to supply standard magnets at a competitive price.
Magnetfabrik Bonn knows that learning is everything. The aim is always to improve. In our consulting, in the development and production of more competitive products, in the technical support we provide to our customers, in terms of quality and environmental protection.
Magnetfabrik Bonn has therefore developed strategies for all relevant corporate sectors in order to secure this aim and strengthen the company’s core skills. This approach is based on reliable, certified technical and organizational processes. Regular customer satisfaction surveys are conducted and confirm the success of this global strategy.
Modern life would hardly be possible without magnets. Although usually invisible, they control, regulate and activate important functions in industry, appliances and engines.
Our comprehensive range of services and products forms the crucial basis which enables us to operate successfully in a wide variety of markets. Our focal points:
It is precisely in the automotive industry, a sector where magnets are used for an enormous variety of applications, that the employed components need to demonstrate absolute precision, reliable operation and a long service life. As a specialist in the production of polymer-bonded permanent magnets and with our specialist knowledge of sensor technology, we have become established as one of the leading international suppliers.
Typical applications for the use of sensors in automobile construction are:
Steer-by-wire,ABS systems, Window cranks, Sliding roofs, Brake-by-wire, Seat adjustment, Engine speed counters, Position recognition, Shift-by-wire,Locking systems, Beam adjustment, Rear hatch control, Gas-by-wire, Throttle valve, Steering wheel locking, Angle sensors
Nowadays, machine and motor construction would not be possible without magnets. Typical uses for our magnets in this sector are position recognition, distance measurement, engine speed detection, angle measurement and drive technology.
Household appliances also make use of products from Magnetfabrik Bonn. Magnets perform control and regulation tasks in washing machines, dishwashers, blenders, drills etc.
A wealth of experience, comprehensive expertise, outstanding products, versatility and guaranteed deliveries – that is the mix of qualities that our customers know and love. Leading manufacturers and suppliers put their trust in our solutions. With some of our customers we have, for years, been pursuing strategic alliances to ensure our mutual competitive edge.
Here is a selection of our satisfied customers.