High Quality Rare Earth Permanent Sintered Ring AlNiCo Magnet for Speaker

February 29 04:07:40, 2024

Model NO.: N35-33UH disc neodymium magnet
Payment Terms: T/T L/C or Western Union Paypal
Color: Natural Alloy Color
Applications: Magnetic Separators , DC and Servo Motors
Competitive Advantage: High Temperature Resistance
Materials: Samarium Cobalt and Other Rare Earth Materials
Transport Package: Cartons
HS Code: 85051110
high quality rare earth permanent sintered ring Alnico magnet for speaker



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:

 
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
We have accumulated abundant experience and established stable and credible business relationships with customers worldwide. With rich experience in dealing with all types of large and small orders, we have developed extensive contacts with many local and international freight organizations. Consequently, we are able to ship our goods safely and reliably to almost anywhere in the world.



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.


 
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

 
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 14 1114 48 Snake Chandeliers

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