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N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
Specifications
Place of Origin :
Chongqing, China
Brand Name :
Great wall
Model Number :
Neodymium Magnet
Supply Ability :
1000000 Piece/Pieces per Month
Packaging Details :
Magnetism shield package for the Express and Air shipments by putting iron sheets/plates between foam form and outer carton.
MOQ :
100 Piece/Pieces
Price :
$0.50 - $200.00 / Piece
Name :
Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
Type :
Permanent, permanent
Composite :
Neodymium Magnet, Neodymium Magnet
Shape :
Sheet, sheet,arc,block,coil,disc
Application :
Industrial Magnet
Tolerance :
±20%, 0.01mm ~ 0.05mm
Processing Service :
Cutting
Grade :
Neodymium Magnet, N40 n50 n52 n54
Size :
Customized Magnet Size
Color :
silver
Packing :
Carton
Max Working Temperature :
80-120
Usage :
Industrial Magnet
Port :
Shanghai
Description

Professional Neodymium Arc Magnets for Electric Motor Rotors


Custom NdFeB Arc Magnets with High Magnetic Performance for Starter Motors
Engineered high-grade neodymium arc magnets featuring precise dimensional tolerance and uniform magnetic flux distribution, designed for reliable performance in DC electric motors and starter motor assemblies.

Product Overview

Neodymium arc magnets are high-performance rare-earth magnet solutions optimized for permanent magnet motor applications. Widely used in starter motors and DC electric motors, these curved magnet segments deliver exceptional magnetic strength, stable performance, and flexible design options to meet demanding industrial requirements.
Manufactured from premium NdFeB (Neodymium Iron Boron) material, these arc magnets are precision-cut to custom dimensions with tight tolerances as low as ±0.05mm. Protective coatings (Ni-Cu-Ni, epoxy, or custom plating) provide corrosion resistance, while customizable magnetization directions and pole patterns ensure seamless integration into various motor rotor designs. The arc geometry enables uniform magnetic field distribution, improving motor efficiency and reducing cogging torque.

Applications

Automotive & Starter Motor Applications

    • Starter motor permanent magnet assemblies
    • DC electric motor rotors
    • Alternator and generator components
    • Automotive auxiliary motor systems
    • Motor drive and pump applications

Industrial & Commercial Applications

    • Permanent magnet DC motors
    • Industrial motor drives
    • Compressor and pump motors
    • Sensor and instrumentation components
    • Custom motor and electronic equipment

Key Advantages

    • High magnetic performance: Exceptional magnetic strength and energy product for compact, high-torque motor designs.
    • Precision manufacturing: Custom sizes with tight dimensional tolerances down to ±0.05mm for perfect fit in rotor assemblies.
    • Customizable specifications: Available in multiple grades (N40-N50), dimensions, and magnetization directions to match specific motor requirements.
    • Reliable durability: Protective coatings provide corrosion resistance, ensuring long-term performance in various operating environments.
    • Uniform flux distribution: Arc-shaped design delivers even magnetic field distribution, enhancing motor efficiency and reducing vibration.
    • Cost-effective integration: Standard and custom configurations available, supporting both prototyping and high-volume production needs.
    • Compliant quality: RoHS certified materials meet international environmental standards for global market use.
    • Versatile application: Suitable for a wide range of starter motors, DC motors, and industrial equipment requiring strong permanent magnets.

Magnetic Performance

Item Grade Remanence; Coercivity; Coercivity Force; Max BH Product; Working
Br HcB HcJ (BH)max Temp.
KGs T KOe KA/m KOe KA/m MGOe KJ/m °C
Max. Min. Max. Min. Max Min. Max. Min. 　
N N40 13.2 12.6 1.32 1.26 ≥10.5 ≥836 >=12 >=954 42 38 334 289 ≤80
N42 13.5 12.9 1.35 1.3 ≥10.5 ≥836 >=12 >=954 44 40 350 318 ≤80
N45 13.8 13.2 1.38 1.32 ≥10.5 ≥836 >=12 >=954 46 42 366 334 ≤80
N48 14.2 13.7 1.43 1.37 ≥10.5 ≥836 >=11 >=876 49 45 390 358 ≤80
N50 14.5 14.0 1.45 1.4 ≥10.5 ≥836 >=11 >=876 51 47 406 374 <=80
N52 14.8 14.4 1.48 1.44 ≥10.5 >=836 >=11 >=876 53 49 422 390 <=80
N55 1.52 14.6 1.52 1.46 ≥9.0 >=716 ≥11.0 >=876 56 52 446 414 <=80
M N38M 12.8 12.3 1.3 1.23 ≥11.6 >=915 >=14 >=1114 40 36 318 287 <=100
N40M 13.2 12.6 1.32 1.26 ≥11.8 >=939 >=14 >=1114 42 38 334 289 <=100
N42M 13.5 12.9 1.35 1.3 ≥12.0 >=955 >=14 >=1114 44 40 350 318 <=100
N45M 13.8 13.2 1.38 1.32 ≥12.5 >=994 >=14 >=1114 46 42 366 334 <=100
N48M 14.2 13.7 1.42 1.37 ≥12.8 >=1018 >=14 >=1114 49 45 390 358 <=100
N50M 14.5 14 1.45 1.4 ≥13.0 >=1042 >=14 >=1114 51 47 406 374 <=100
N52M 14.8 14.2 1.48 1.42 ≥13.0 >=1035 >=14 >=1114 53 48.5 422 386 <=100
H N35H 12.5 11.8 1.25 1.18 ≥11.0 >=875 >=17 >=1353 37 33 295 263 <=120
N38H 12.8 12.3 1.3 1.23 ≥11.6 >=915 >=17 >=1353 40 36 318 287 <=120
N41H 13.2 12.6 1.32 1.26 ≥11.8 >=939 >=17 >=1274 42 38 334 302 <=120
N44H 13.7 13 1.37 1.3 ≥12.1 >=963 >=16 >=1274 45 41 358 326 <=120
N46H 13.8 13.2 1.38 1.32 ≥12.2 >=971 >=16 >=1274 47 43 374 342 <=120
N48H 14.2 13.7 1.42 1.37 ≥12.7 >=1011 >=16 >=1274 49 45 390 358 <=120
SH N35SH 12.5 11.8 1.25 1.18 ≥11.0 >=876 >=20 >=1592 37 33 295 263 <=150
N39SH 13 12.3 1.3 1.23 ≥11.6 >=923 >=20 >=1592 40 36 318 287 <=150
N42SH 13.2 12.9 1.32 1.26 >=11.8 >=939 >=20 >=1592 42 38 334 302 <=150
N44SH 13.7 13 1.37 1.3 >=12.1 >=963 >=20 >=1592 45 41 358 326 <=150
N46SH 13.8 13.4 1.38 1.34 >=12.5 >=965 >=20 >=1592 47 43 374 342 <=150
UH N33UH 12.2 11.4 1.22 1.14 >=10.7 >=851 >=25 >=1990 35 31 279 2247 <=180
N35UH 12.5 11.8 1.25 1.18 >=11.0 >=875 >=25 >=1990 37 33 295 263 <=180
N38UH 13 12.3 1.3 1.23 >=11.6 >=915 >=25 >=1990 40 36 318 287 <=180
N40UH 13.2 12.6 1.32 1.26 >=10.5 >=836 >=25 >=1990 42 38 334 289 <=180
EH N30EH 11.7 10.9 1.17 1.09 >=10.2 >=812 >=30 >=2388 32 28 255 223 <=200
N33EH 12.2 11.4 1.22 1.14 >=10.7 >=851 >=30 >=2388 35 31 279 2247 <=200
N35EH 12.5 11.8 1.25 1.18 >=11.0 >=875 >=30 >=2388 37 33 295 263 <=200
N38EH 13 12.2 1.3 1.22 >=11.5 >=915 >=30 >=2387 40 36 318 287 <=200
AH N28AH 11 10.4 1.1 1.04 >=9.70 >=772 >=35 >=2786 29 26 231 207 <=220
N30AH 11.7 10.8 1.17 1.08 >=10.2 >=812 >=35 >=2786 32 28 255 223 <=220
N33AH 12.2 11.4 1.22 1.14 >=10.7 >=851 >=35 >=2786 35 31 279 247 <=220
N35AH 12.5 11.7 1.25 1.17 >=11.0 >=876 >=35 >=2386 37 33 295 263 <=220

N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets

N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
Product tags

neodymium motor magnets

,

neodymium permanent magnet motor

,

neodymium magnets in motor
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N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets

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Product Detail
Place of Origin :
Chongqing, China
Brand Name :
Great wall
Model Number :
Neodymium Magnet
Supply Ability :
1000000 Piece/Pieces per Month
Packaging Details :
Magnetism shield package for the Express and Air shipments by putting iron sheets/plates between foam form and outer carton.
MOQ :
100 Piece/Pieces
Contact Supplier
video
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets
N40-N50 Neodymium Arc Magnets for DC Motor Permanent Rare Earth Magnets

Chongqing Great Well Magnet Co.,ltd.

Verified Supplier
7 Years
chongqing, chongqing
Since 2003
Business Type :
Manufacturer
Main Products :
Neodymium Permanent Magnets, Ferrite Permanent Magnets, Neodymium Arc Magnets
Total Annual :
13000000-15000000
Employee Number :
150~200
Certification Level :
Verified Supplier
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