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We manufacture and supply testing systems for magnetic particle and penetrant testing (high-quality crack detection equipment of all kinds), as well as a full range of test specimens, spare and wear parts, and testing accessories.
Magnetic particle testing – also known as flux testing – is a method for detecting surface cracks in ferromagnetic materials.
Our MPJ and MPC crack detection systems magnetise workpieces, or, in the case of large workpieces, only a specific section. This creates magnetic field lines that run parallel to the surface. Defects and cracks that lie perpendicular to the field lines generate a stray magnetic field, which results in the formation of magnetic poles. When iron powder is then applied, it accumulates at the perpendicular defects or cracks.
Karlsruhe University of Applied Sciences has provided a clear explanation of how the magnetic particle testing method works in its YouTube video.