Nd-Fe-B permanent magnet is manufactured in awiderange of shapes, sizes and grades according customer's demand.
NdFeB has a very high energy product and coercivity,canpick up 660 times of own weight of heavy objects.
The advantage is high cost-effective, with good mechanical properties,easycutting; according customer's demand to manufacture in a wide range ofshapes,sizes and grades.
Also have high Br,high Hcj,high (BH)max,and high stability becometheimportant material of the world.
The shortcoming is the low of the Curie temperature and thetemperaturecharacteristics, easy to rust, oxidation, Sintered NdFeB's surface isusuallyrequired for plating such as zinc, nickel, silver, gold, etc., can alsobe donephosphorus treatment or spray epoxy resin to slow down the oxidationrate.
See the follows Grade N Sintered NdFeB magneticenergyparameters
Grade | Residual Induction | Coercive Force | Intrinsic Coercive Force | Maximum Energy Product | Maximum Operating Temperature | ||||
Br | Hcb | Hcj | (BH)max | Tw | |||||
T | KGS | KA/m | KOe | KA/m | KOe | KJ/m3 | MGOe | ℃ | |
N35 | 1.17-1.21 | 11.7-12.1 | 876-899 | 11.0-11.3 | ≥955 | ≥12 | 263-279 | 33-25 | ≤80 |
N38 | 1.22-1.26 | 12.2-12.6 | 876-923 | 11.0-11.6 | ≥955 | ≥12 | 287-303 | 36-38 | ≤80 |
N40 | 1.26-1.29 | 12.6-12.9 | 876-923 | 11.0-11.6 | ≥955 | ≥12 | 303-318 | 38-40 | ≤80 |
N42 | 1.30-1.33 | 13.0-13.3 | 876-926 | 11.0-11.6 | ≥955 | ≥12 | 318-334 | 40-42 | ≤80 |
N45 | 1.33-1.37 | 13.3-13.7 | 876-926 | 11.0-11.6 | ≥955 | ≥12 | 342-358 | 43-45 | ≤80 |
N48 | 1.36-1.42 | 13.6-14.2 | 876-926 | 11.0-11.6 | ≥955 | ≥12 | 358-382 | 45-48 | ≤80 |
N50 | 1.41-1.45 | 14.1-14.5 | 828-907 | 10.4-11.4 | ≥876 | ≥11 | 382-398 | 48-50 | ≤70 |
N52 | 1.44-1.48 | 14.4-14.8 | 828-907 | 10.4-11.4 | ≥876 | ≥11 | 394-414 | 49.5-52 | ≤70 |
The main physical properties of NdFeB ring magnet:
magnetic properties | Parameters |
Density /g.cm3 Vickers Hardness HV Resistivity /υΩ.cm Compressive strength/N.mm-2 Coefficient of Thermal Expansion (C⊥)/K-1 Coefficient of Thermal Expansion (C∥) /K-1 | 7.45 570 150 780 -4.8X10-6 -3.4X10-6 |
picture show NdFeB magnetring with Zn coating:
NdFeB magnet ring has been presented above,want more similar products, please click Permanent neodymium Iron Boronring magnets.NdFeB ring magnet. permanent rare earth material magnet. sintered NdFeB ring magnet.
Our NdFeB magnet ring is good inquality and competitive in price. We manufacture magnetand supply OEM, ODM service according to your requirement.
If you wantmore detailed information of this product or related problems, pleasecontactwith us, we will reply as soon as possible
