Servo Motor Block Neodymium Magnet 38UH, Permanent magnet, Block magnet, NdFeB Magnet, Nd Magnet, Neo Magnet
What are rare earth magnets?
The term Rare Earth Magnets is used to refer to a group of magnetic materials whose alloys consist of one or more of the Rare Earth elements. These materials are characterized by exceptionally strong magnetic properties.
Servo Motor Block Neodymium Magnet 38UH
Coatings of Neodymium magnets
The coatings do not affect the magnetic strength or performance of the magnet.
Neodymium magnets are a composition of mostly Neodymium, Iron and Boron. If left exposed to the elements, the iron in the magnet will rust. To protect the magnet from corrosion and to strengthen the brittle magnet material, it is usually preferable for the magnet to be coated. There are a variety of options for coatings, but nickel is the most common and usually preferred. Our nickel plated magnets are actually triple plated with layers of nickel, copper, and nickel again. This triple coating makes our magnets much more durable than the more common single nickel plated magnets. Some other options for coating are zinc, tin, copper, epoxy, silver and gold. Our gold plated magnets are actually quadruple plated with nickel, copper, nickel and a top coating of gold.
Grades of Neodymium block magnets
N35, N38, N42, N38SH…what does it all mean? Neodymium magnets are all graded by the material they are made of. As a very general rule, the higher the grade (the number following the ‘N’), the stronger the magnet. The highest grade of neodymium magnet currently available is N50. Any letter following the grade refers to the temperature rating of the magnet. If there are no letters following the grade, then the magnet is standard temperature neodymium. The temperature ratings are standard (no designation) – M – H – SH – UH – EH. You find the temperature rating of each grade on our Specifications of Neodymium Magnets Page.
The grade, or “N rating” of the magnet refers to the Maximum Energy Product of the material that the magnet is made from. It refers to the maximum strength that the material can be magnetized to. The grade of neodymium magnets is generally measured in units millions of Gauss Oersted (MGOe). A magnet of grade N38 has a Maximum Energy Product of 38 MGOe. Generally speaking, the higher the grade, the stronger the magnet.
Servo Motor Block Neodymium Magnet
100 x 100 x 10mm Powerful Huge Neodymium Magnet N45 Epoxy
80 x 40 x 10mm Powerful Neodymium Magnet Block N45 Ni
80 x 80 x 24mm Block Neodym Power Magnet N52 Ni
100 x 100 x 30mm Rare Earth Block Powerful Magnet N50 Ni
