Micro neodymium magnets are also known as tiny neodymium magnets. They are very small, and their dimensions are less than 1mm. Micro neodymium magnets are made from NdFeB blanks. A variety of shapes are available: micro ring magnets, micro disc magnets, micro block magnets and micro cylinder magnets, etc.
Designers of micro magnets often choose high grade magnets because they need to achieve the highest energy possible with a small magnet volume. In addition, micro magnets are prone to demagnetization against high opposing magnetic field. For this reason, high coercivity (e.g. UH grade) is required in many micro magnet applications.
Generally, it’s difficult to use conventional coating methods on magnets that are under 1mm. Tengye has tiny magnet coating line that is capable of coating nickel, gold and biocompatible coatings such as parylene.
Conventionally, neodymium magnets are cut and sliced by EDM (Electrical discharge machining) and diamond multi-wire saw. However, to manufacture micro neodymium magnets, laser cutting technology is needed.
About Tengye: Tengye supplies finest permanent magnet materials to world industry. We work closely with our customer from designing stage to mass production.
