Neodymium magnets (also called NdFeB magnets, Neo magnets) are consisted of Nd (neodymium), Fe (Ferrum), B (boron), and other elements like Dy (dysprosium) and Ti (Titanium). As part of the permanent magnet family, they are the latest generation of rare earth magnets. Neodymium magnets are extremely super strong magnets commercially available in the world, their pull force are quite strong compared to their own size, they have high magnetic remanence, high energy product and relative good coercive, due to these advantages, they are the most widely used magnets today.
As a reputable neodymium permanent magnet manufacturer in China, RiSheng has various types of powerful magnets for sale, in our online shops and physical stores, with competitive price per kg, very cost effective. In terms of the size, our factory supplies not only the small series— paper thin, micro, tiny, mini, but also the big ones—large, huge, giant monster. Considering practical applications, we provide customized neodymium magnets. They are of different shapes: arc, rod, bar, ball, ring, disc, flat, block, sphere, eclipse, curved, bonded, rectangular, cylindrical, with countersunk holes; and are for different purposes and industrial uses: for cutting, drilling, grinding, machining, for therapy, water meter, etc. Some of them can be sintered, silicone coated, some can be made super strong, adhesive, waterproof. For the convinience of our customers, Risheng has already prepared relevant pdf files and videos about neodymium magnets. Contact us immediately, get cheaper price with best service.
Types of Neodymium Magnets
Grades of Neodymium Magnets
We can manufacture and supply all the grades from energy product 35MGOe to 52MGoe and from N series to AH series.
Demagnetization curves of Neodymium Magnets
We list the performance of the highest grades with different series when demagnetization.
Physical properties of Neodymium Magnets
A few main physical properties are listed, like density, curie temperature, etc.
Sizes & Tolerance of Neodymium Magnets
We can produce different shapes, like a disc, cylinder, ring, arc segment, and custom complicated shapes, a wide range of sizes are possible with a few limits.
The standard tolerances are generally +/-0.1mm, while slightly varies depending on how big the size is.
Magnetization of Neodymium Magnets
All Neodymium magnets are anisotropic and oriented with a preferred direction during production, they can only be magnetized thru the oriented direction. Disc/cylinder/ring magnets are axially or diametrically magnetized, block magnets are magnetized along one side of three sides, arc segment magnets are generally diametrically magnetized.
Surface coatings of Neodymium Magnets
The corrosion resistance of Neodymium magnets is considered very poor, a surface coating will be necessary, the most common coatings are NiCuNi, Zn, Black Epoxy, Teflon/PTFE, Rubber/Plastic.
Manufacturing method of Neodymium Magnets
Neodymium magnets are made by a sophisticated process using very advanced metallurgical methods, the main process is Rare earth raw materials - Quick curing - Strip casting - Hydrogen decrepitation - Milling - Pressing - Sintering - BH curve testing - Machining - Plating - Magnetizing - Packaging.
Applications of Neodymium Magnets
Neodymium magnets are widely used for industrial, technical, commercial, and consumer applications, the most common applications are motors/generators, sensors, audio equipment, holding/lifting systems, magnetic bearings, hard disc drives, levitation devices, magnetically coupled pumps, medical devices, magnetic separators, packaging closures, commercial signage/display.