Gerhard Grönefeld founded Magnetfabrik Bonn.

Magnet production discontinued due to the lack of raw materials and power. To ensure its economic survival, the company produced household electrical products.

Resumption of the production of permanent magnets.

Setup of a sintering and casting unit. Start of production of AlNiCo magnets.

Death of the founder Gerhard Grönefeld. His 23-year-old son Georg Grönefeld took over the management of the business.

Start of production of ceramic hard ferrites.

Start of injection molding production.

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 rare earth magnets.

After obtaining a doctorate in natural sciences, Dr. Martin Grönefeld became actively involved in the company.

Certification of our quality management system in accordance with DIN ISO 9001.

Certification of our quality management system in accordance with QS 9000 and VDA 6.1.

Certification of our quality management system in accordance with ISO/TS 16949: 2002.

Certification of our environment management system in accordance with ISO 14001:2004.

Magnetfabrik Bonn celebrates 75 years of operation.