Latest New Design Superior Quality Bonded Neodymium Magnet
Your partner for magnetic solution & high quality magnet
Your partner for magnetic solution & high quality magnet
— NDFEB
Known as the third Generation of Rare Earth Magnets, Neodymium-Iron-Boron(NdFeB) magnets are the most powerful and advanced commercialized permanent magnets today. NdFeB magnets are introduced in 1980. This material offers the highest Energy Product (BH)max commercially available. Today their typical applications include high performance sensors, various DC motors, linear actuators, MRI, wind energy turbines etc. The highest (BH)max reaches up to 51MGOe. The choice of strip casting and HDDR technology in our factory allow us to make high performance NdFeB over N52 possible. The intrinsic coercive force is over 30000 Oe. Also, magnets are protected with effective surface treatment to prevent corrosion.
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MAGNETIC CHARACTERISTICS AND PHYSICAL PROPERTIES OF SINTERED Nd-Fe-B |
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PROPERTIES |
BrmT (KGs) | Hcb KA/m (Koe) | Hcj KA/m (KOe) | (BH)max KJ/m³ (MGOe) | TW ℃ |
| N33 | 1130-1170 (11.3-11.7) | ≥836 (≥10.5) | ≥955 (≥12) | 247-263 (31-33) | 80 |
| N35 | 1170-1210 (11.7-12.1) | ≥868 (≥10.9) | ≥955 (≥12) | 263-287 (33-36) | 80 |
| N38 | 1210-1250 (12.1-12.5) | ≥899 (≥11.3) | ≥955 (≥12) | 287-310 (36-39) | 80 |
| N40 | 1250-1280 (12.5-12.8) | ≥923 (≥11.6) | ≥955 (≥12) | 302-326 (38-41) | 80 |
| N42 | 1280-1320 (12.8-13.2) | ≥923 (≥11.6) | ≥955 (≥12) | 318-342 (40-43) | 80 |
| N45 | 1320-1380 (13.2-13.8) | ≥876 (≥11.0) | ≥955 (≥12) | 342-366 (43-46) | 80 |
| N48 | 1380-1420 (13.8-14.2) | ≥835 (≥10.5) | ≥876 (≥11) | 366-390 (46-49) | 80 |
| N50 | 1400-1450 (14.0-14.5) | ≥796 (≥10.0) | ≥876 (≥11) | 382-406 (48-51) | ≤60 |
| N52 | 1430-1480 (14.3-14.8) | ≥796 (≥10.0) | ≥876 (≥11) | 398-422 (50-53) | ≤60 |
| N35M | 1170-1220 (11.7-12.2) | ≥868 (≥10.9) | ≥1114 (≥14) | 263-287 (33-36) | ≤100 |
| N38M | 1220-1250 (12.2-12.5) | ≥899 (≥11.3) | ≥1114 (≥14) | 287-310 (36-39) | ≤100 |
| N40M | 1250-1280 (12.5-12.8) | ≥923 (≥11.6) | ≥1114 (≥14) | 302-326 (38-41) | ≤100 |
| N42M | 1280-1320 (12.8-13.2) | ≥955 (≥12.0) | ≥1114 (≥14) | 318-342 (40-43) | ≤100 |
| N45M | 1320-1380 (13.2-13.8) | ≥995 (≥12.5) | ≥1114 (≥14) | 342-366 (43-46) | ≤100 |
| N48M | 1360-1430 (13.6-14.3) | ≥1027 (≥12.9) | ≥1114 (≥14) | 366-390 (46-49) | ≤100 |
| N50M | 1400-1450 (14.0-14.5) | ≥1033 (≥13.0) | ≥1114 (≥14) | 382-406 (48-51) | ≤100 |
| 33H | 1130-1170 (11.3-11.7) | ≥836 (≥10.5) | ≥1353 (≥17) | 247-271 (31-34) | 120 |
| 35H | 1170-1210 (11.7-12.1) | ≥868 (≥10.9) | ≥1353 (≥17) | 263-287 (33-36) | 120 |
| 38H | 1210-1250 (12.1-12.5) | ≥899 (≥11.3) | ≥1353 (≥17) | 287-310 (36-39) | 120 |
| 40H | 1240-1280 (12.4-12.8) | ≥923 (≥11.6) | ≥1353 (≥17) | 302-326 (38-41) | 120 |
| 42H | 1280-1320 (12.8-13.2) | ≥955 (≥12.0) | ≥1353 (≥17) | 318-342 (40-43) | 120 |
| 45H | 1300-1360 (13.0-13.6) | ≥963 (≥12.1) | ≥1353 (≥17) | 342-358 (43-46) | ≤120 |
| 48H | 1370-1430 (13.7-14.3) | ≥995 (≥12.5) | ≥1353 (≥17) | 358-390 (46-49) | ≤120 |
| 33SH | 1130-1170 (11.3-11.7) | ≥844 (≥10.6) | ≥1592 (≥20) | 247-272 (31-34) | 150 |
| 35SH | 1170-1210 (11.7-12.1) | ≥876 (≥11.0) | ≥1592 (≥20) | 263-287 (33-36) | 150 |
| 38SH | 1210-1250 (12.1-12.5) | ≥907 (≥11.4) | ≥1592 (≥20) | 287-310 (36-39) | 150 |
| 40SH | 1240-1280 (12.4-12.8) | ≥939 (≥11.8) | ≥1592 (≥20) | 302-326 (38-41) | 150 |
| 42SH | 1280-1320 (12.8-13.2) | ≥987 (≥12.4) | ≥1592 (≥20) | 318-342 (40-43) | ≤150 |
| 45SH | 1320-1380 (13.2-13.8) | ≥1003 (≥12.6) | ≥1592 (≥20) | 342-366 (43-46) | ≤150 |
| 28UH | 1020-1080 (10.2-10.8) | ≥764 (≥9.6) | ≥1990 (≥25) | 207-231 (26-29) | 180 |
| 30UH | 1080-1130 (10.8-11.3) | ≥812 (≥10.2) | ≥1990 (≥25) | 223-247 (28-31) | 180 |
| 33UH | 1130-1170 (11.3-11.7) | ≥852 (≥10.7) | ≥1990 (≥25) | 247-271 (31-34) | 180 |
| 35UH | 1180-1220 (11.8-12.2) | ≥860 (≥10.8) | ≥1990 (≥25) | 263-287 (33-36) | ≤180 |
| 38UH | 1220-1250 (12.2-12.5) | ≥876 (≥11.0) | ≥1990 (≥25) | 287-310 (36-39) | ≤180 |
| 40UH | 1240-1280 (12.4-12.8) | ≥899 (≥11.3) | ≥1990 (≥25) | 302-326 (38-41) | ≤180 |
| 28EH | 1040-1090 (10.4-10.9) | ≥780 (≥9.8) | ≥2388 (≥30) | 207-231 (26-29) | 200 |
| 30EH | 1080-1130 (10.8-11.3) | ≥812 (≥10.2) |
≥2388 (≥30) |
223-247 (28-31) | 200 |
| 33EH | 1130-1170 (11.3-11.7) | ≥836 (≥10.5) | ≥2388 (≥30) | 247-271 (31-34) | ≤200 |
| 35EH | 1170-1220 (11.7-12.2) | ≥876 (≥11.0) | ≥2388 (≥30) | 263-287 (33-36) | ≤200 |
| 38EH | 1220-1250 (12.2-12.5) | ≥899 (≥11.3) | ≥2388 (≥30) | 287-310 (36-39) |
≤200 |
REMARKS:
※ The above-mentioned data of magnetic parameters and physical properties are given at room temperature.
※ The maximum service temperature of magnet is changeable due to the ratio length and diameter and environmental factors.
※ Density: 7.4~7.6g/cm³; αBr: -0.09~-0.13%/℃; αHcj: -0.50~-0.80%/℃ ; Hardness: Hv 600 ;
| Coating and Corrosive Resistance of Sintered NdFeB | ||||||||||||
| Surface | Coating | Colour | Thickness(μm) | Standard Resistance | Corrosive Resistance | |||||||
| PCT Test | Salt Spray Test | |||||||||||
| Nickel | Nickel | Silver | 10-20 | 48hr or 72hr | 72hr | EXCELLENT | ||||||
| Ni+Cu+Ni | ||||||||||||
| Zinc | Blue Zinc | Bright Blue | 8-20 | 24hr | 24hr | GOOD | ||||||
| Colour Zinc | Shinny Colour | |||||||||||
| Epoxy | Epoxy | Black / Grey | 15-25 | 48hr | 96hr | EXCELLENT | ||||||
| Ni+Cu+Epoxy | ||||||||||||
| Tin | Ni+Cu+Sn | Silver | 15-20 | 72hr | 72hr | SUPERIOR | ||||||
| Parylene | Parylene | Grey | 15-25 | 96hr | 200hr | SUPERIOR | ||||||
| Teflon | Teflon | Grey | 10-20 | 12hr | 24hr | SUPERIOR | ||||||
| Phosphorization | / | Grey | 1-2 | - | - | TEMPORARY PROETCTION | ||||||
| Passivation | / | Grey | 1-2 | - | - | TEMPORARY PROETCTION | ||||||
※ PCT test(120℃,100%RH,2.0atm);Salt Spray Test(5%NaCl,35℃ continue spray).
| Item | Parameters | Reference Value | ||||||||||
| Additional Magnetic Properties | Temp.Coeff.of Br (α(Br))/(%/K) | -0.08 ～ -0.12 | ||||||||||
| Temp.Coeff.of Hcj (β(Hcj))/(%/K) | -0.42 ～ -0.70 | |||||||||||
| Curie Temperature (Tc)/K | 310 ～ 380 | |||||||||||
| Recoil Permeability (μrec)[-] | 1.05 | |||||||||||
| Mechanical and Physical Properties | Density (g/cm³) | 7.6 | ||||||||||
| Vickers Hardness (Hv) | 650 | |||||||||||
| Electrical Resistivity (μΩom) | 1.4 | |||||||||||
| Compressive Strength (Mpa) | 1050 | |||||||||||
| Tensile Strength (Mpa) | 80 | |||||||||||
| Bending Strength (Mpa) | 290 | |||||||||||
| Thermal Conductivity (W/(moK)) | 6 ～ 8 | |||||||||||
| Young's Modulus (Gpa) | 160 | |||||||||||
| Coefficient of Thermal Expansive (C⊥) (10-6/K) | -1.5 | |||||||||||
| Coefficient of Thermal Expansive (C‖) (10-6/K) | 6.5 | |||||||||||
※ Technical specifications and parameters are subjected to change without notice.
Sintered NdFeB magnet is a kind of permanent magnet which could be categorized into natural permanent magnets and artificial penusiteltt luagtebc materid (sintered NdFeB magnet), featured with stable and strong magnetic power which could be applied to electronic & electrical devices, magnetic parts of medical equipment and other industry machine & device.
Sintered ferrite's materials mainly include BaFe12019 and SrFe12019, on the basis of variety of magnetocrystalline orientation, sintered ferrite could be divided into isotropic and anisotropic magnets respectively. Catapulted by its low cost and suitable magnetic strength, sintered ferrite product has been widely used in many industries, ferrite magnet is manufactured by ceramic process workmanship to solid strength and heat resistance.
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