Ring Sintered Neodymium Permanent Magnet
|FOB Price:||US $0.01 / Piece|
|Min. Order:||10 Pieces|
|Min. Order||FOB Price|
|10 Pieces||US $0.01/ Piece|
|Production Capacity:||1000 Ton/Year|
|Payment Terms:||T/T, Western Union, Paypal|
- Model NO.: N40
- Shape: Ring
- Grade: N42
- Material: Neodymium, Iron and Boron
- Working Temperature: Max.80
- Transport Package: Packed in Plastic Then Put in Cartons
- Origin: China
- Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
- Coating: Nickel
- Type: Permanent
- Density: 7.5g/cm3
- Trademark: TSL
- Specification: rosh
- HS Code: 7202991900
Ndfeb Permanent Magnet are composed of Neodymium, Iron and Boron. Density of Neodymium magnets is. 27Lb/in3 (7.5g/cm3).
Ndfeb Permanent Magnet are manufactured in a metallurgy process through alloying, crushing, powdering, pressing w/magnetic orientation, sintering, then cutting, coating, inspecting and packing before shipment.
Ndfeb Permanent Magnet 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 Permanent Magnet 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 Permanent Magnet 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 Permanent Magnet 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 Permanent Magnet
Ring Ndfeb Magnets Outer Radius*Inner Radius*Thickness*
Maximum150.0 mm95.0 mm50.0 mm
Minimum0.8 mm0.15 mm0.2 mm
Disc Ndfeb Magnets Diameter*Thickness*
Maximum150.0 mm75.0 mm
Minimum0.4 mm0.25 mm
Block Ndfeb 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 Ndfeb Magnets Outer Radius*Inner Radius*Thickness*Degree*
Maximum75 mm65 mm50.00 mm150
Custom size are available,any inquiry,please feel free to contact us.