Ndfeb Magnets are composed of Neodymium, Iron and Boron. Density of Neodymium magnets is. 27Lb/in3 (7.5g/cm3).
Ndfeb Magnets are manufactured in a metallurgy process through alloying, crushing, powdering, pressing w/magnetic orientation, sintering, then cutting, coating, inspecting and packing before shipment.
Ndfeb Magnets offer the highest (BH)max and high Hci(BH)max, the Maximum Energy Product, of Neodymium magnets is highest of any kind of permanent magnets today in the world. (BH)max at different grades of Neodymium magnets is 27 to 52 MGOe. Neodymium magnets have extremely resistance to demagnetization with Hci, Intrisic coercive force, over 12, 000 Oe. Because of very high (BH)max and Hci, Neo magnets could be used as a reversible medium for large amount of energy transformation in miniaturized application where a strong magnetic demagnetization field exists, such as computer hard drive. Disk and rectangle shapes for customers' immediate needs and accept special orders for custom Neodymium magnets.
Ndfeb Magnets are most powerful of any kind of magnetic materialsBr of Neodymium magnets are much more than 11, 000 Gauss. Therefore, Neodymium magnets have strong holding strength on metal surface and could be used as component for holding, separating, etc. Neodymium magnets must be carefully handled to avoid personal injury and material damage due to its extremely magnetic strength and brittle property.
Ndfeb Magnets are sensitive to temperature change and even lose magnet properties at high temperatureNeodymium magnets lose -0.09 ~ -0.13% of Br/° C and can work stably under 80° C for low Hci Neodymium magnets and 150° C for high Hci Neodymium magnets.
Neodymium magnets are corrupted in humid environment Surface protection is strongly recommended, such as plating, varnishing and encapsulating.
Ndfeb Magnets are hard and brittle Neodymium magnets can be abrasively machined with coolant served to absorb heating and dust. Without coolant, rare earth magnets could crack and chip by the heat produced during high speed cutting or grinding, and the sparks contain the easily oxidized grinding dust that could cause fire!
Magnetic Property of NdFeB Rare Earth Magnet
Dimension Range, Size and Tolerance
Ring Neodymium Magnets Outer Radius*Inner Radius*Thickness*
Maximum150.0 mm95.0 mm50.0 mm
Minimum0.8 mm0.15 mm0.2 mm
Disc Neodymium Magnets Diameter*Thickness*
Maximum150.0 mm75.0 mm
Minimum0.4 mm0.25 mm
Block Neodymium Magnets Length*Width*Thickness*Diagonal*
Maximum200.0 mm95.0 mm50.0 mm150.0 mm
Minimum3.080 mm1.20 mm0.25 mm0.50 mm
Arc-segment Neodymium Magnets Outer Radius*Inner Radius*Thickness*Degree*
Maximum75 mm65 mm50.00 mm150
Minimum1.9 mm
TSL Magnetic Meterial Co., Ltd development purpose is "customer first, sincere service". Our expertise and ability to develop customized solutions will match the correct magnet for your application
Our company is a collection of production, sales, research and development in the enterprise, specializing in rare-earth permanent magnet, NdFeB magnets, Ferrite magnet, Rubber Magnet.
Products are widely used in automobiles, mobile phones, digital cameras, jewelry, clothing, all kinds of hardware accessories, electrical and laser heads, toys, gifts, speakers, packaging, leather goods, medical equipment and advertising industries. According to the demand of customers, we can design and process all kinds of products, We have different grade of the products, including N35 - N50, 35M-48M, 35H-46H, 35SH-42SH, 30UH-40UH, 28EH - 35EH etc, which can meet the needs of different industries
We insist on providing energy-saving and environmental quality products in return to our customers. Each production procedure is in strict compliance with the ISO9000 system and all products have passed the test of SGS, as well as environment protection (RoHS) approval. In the future we will work harder to provide you with more professional and thoughtful service, also high quality products with the most competitive price.
