Magnet Inspections

Magnet inspection ensures the quality of finished products. The operation and performance of the magnet must be correct to ensure the quality of the final product.

In principle, the permanent magnet maintains its strength throughout its service life. However, there are several reasons that may lead to a permanent reduction in magnetic force:

-Heat: the thermal sensitivity varies according to the mass of the magnet; Some types of neodymium magnets begin to lose strength at temperatures above 60 ° C. Once the Curie temperature is reached, the magnetic field strength drops to zero. The maximum temperature to ensure magnetic strength is always listed in the product specifications of our magnetic system. Ferrite magnet is the only material that also weakens at low temperatures (below 40 ° C).
-Impact: impact load can change the structure and direction of magnetic "spin".
-Contact with external magnetic field.
-Corrosion: corrosion may occur if the magnet (coating) is damaged or if the magnet is directly exposed to humid air. Therefore, magnets are usually built-in and / or protected.

When overloaded, the electromagnet will overheat, which may lead to coil corrosion. This also leads to a reduction in magnetic force.

With our rich experience and knowledge of magnets, we will specially design test procedures to determine whether the magnets are qualified in combination with the operation of the customer's magnet system in the product or manufacturing process.

Contact us to make an appointment for magnet inspection: Tel. + 86 135 6789 1907 or email: