Permanent Thin Rare Earth Ball Various Shapes/Color Industrial Magnet
Quick Detail:
1. samarium cobalt and other rare earth materials.
2. It is permanent rare earth magnet which features high magnetic properties with good stability, resistance to acid corrosion, curie temperature reaches 800-850oC.
3. Natural alloy color
4. Compliant to RoHS
5.All products packed in neutral paper carton
Characteristics of of permanent SmCo magnet:
Â
Curie Temp | Tc | °C | 800~850 | Coeff. of thermal expansion | C // | 1/°C | ~8×10-5 |
Density | D | g/cm3 | 8.3~8.5 | C | 1/°C | ~11×10-5 | |
Recoil Permeability | µrec |  | 1.00~1.05 | Regidity strength |  | N/m2 | ~1.5×108 |
Max. Working Temp | Tmax | °C | 350 | Compress strength |  | N/m2 | ~8×108 |
Electrical Resistivity |  | Ω. Cm | ~8.6×10-5 | Tensile strength |  | N/m2 | 3.5×107 |
Vickers Hardness | Hv |  | 500~600 | young's modulus |  | N/m2 | ~1.2×1011 |
Thermal Conduct Rate |  | W/mK | ~12 | Magnetization field Ha |  | kA/m | ≥1600 |
Neodymium Magnets (Neodymium Iron Boron Magnets)
also known as NdFeB or Neo magnets, are the most widely-used type of rare earth magnet. It is the strongest type of permanent magnet made from an alloy of Neodymium, Iron, and Boron with the Nd2Fe14B tetragonal crystalline structure. It has replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives, and magnetic fasteners.
Â
Physical Properties of NdFeB Magnet | |
Density(g/cm3) | 7.3-7.5 |
Curie Temperature (ºC) | 320 |
Max. Operating Temperature (ºC) | 220 |
Relative Permeability | 1.05 |
Flexural Strength (N/nm2) | 250 |
Compressive Strength (N/nm2) | 1100 |
Tensile Strength (N/nm2) | 75 |
Hardness (Hv) | 550-650 |
Temperature Coefficient of Br (%/ºC) | -0.09~-0.12 |
Temperature Coefficient of Hcj (%/ºC) | -0.50~-0.65 |
Applications
Magnetic separators
DC and servo motors
Speaker Parts
Printers
Magnetic hooks
MRI/NMR
Performance of Sintered Neodymium Magnets
Â
Grade | Residual Induction | Coercive Force | Intrinsic Coercive Force | Maximum Energy Product | Maximum Operating | ||||
(Br) | (Hc) | (Hci) | (Bhmax) | Temp | |||||
(G) | (mT) | (Oe) | (kA/m) | (kOe) min | (kA/m) min | (MGOe) | (KJ/m3) | (°C) | |
N35 | 11700 | 1170 | 10900 | 868 | 12 | 955 | 35 | 279 | 80 |
N38 | 12200 | 1220 | 11300 | 899 | 12 | 955 | 38 | 303 | 80 |
N40 | 12500 | 1250 | 11400 | 907 | 12 | 955 | 40 | 319 | 80 |
N42 | 12800 | 1280 | 11500 | 915 | 12 | 955 | 42 | 335 | 80 |
N45 | 13200 | 1320 | 11600 | 923 | 12 | 955 | 45 | 359 | 80 |
N48 | 13800 | 1380 | 11600 | 923 | 12 | 955 | 48 | 382 | 80 |
N50 | 14000 | 1400 | 10000 | 796 | 11 | 876 | 50 | 398 | 60 |
N52 | 14300 | 1430 | 10000 | 796 | 11 | 876 | 52 | 414 | 60 |
33M | 11300 | 1130 | 10500 | 836 | 14 | 1114 | 33 | 263 | 100 |
35M | 11700 | 1170 | 10900 | 868 | 14 | 1114 | 35 | 279 | 100 |
38M | 12200 | 1220 | 11300 | 899 | 14 | 1114 | 38 | 303 | 100 |
40M | 12500 | 1250 | 11600 | 923 | 14 | 1114 | 40 | 319 | 100 |
42M | 12800 | 1280 | 12000 | 955 | 14 | 1114 | 42 | 335 | 100 |
45M | 13200 | 1320 | 12500 | 995 | 14 | 1114 | 45 | 359 | 100 |
48M | 13600 | 1360 | 12900 | 1027 | 14Sponge Sandpaper
Sunplus Sponge is made with aluminum oxide and latex paper with foam backing. Aluminium Oxide grains provide fast sanding results. The foam backing is suitable for hand sanding of corners, angles of car body parts. The foam allows pressure to be applied evenly and thus reduces the risk of sanding through the surface.
Sunplus Abrasives Co.,Ltd is a leading company in the field of researching and manufacturing premium quality coated abrasives for a wide range of applications. Sponge Sandpaper,Abrasive Sanding Belt,Sanding Blocks Abrasives,Abrasives Sponge Sandpaper GUANGZHOU SUNPLUS TECHNOLOGY CO.,LTD , https://www.sunplussandpaper.com |