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Diametrically Magnetised NdFeB Ring Magnet for Audio Equipment

​As a leading manufacturer in China, Yue Magnetics specializes in producing high-quality radially magnetized NdFeB ring magnets. These magnets are widely used in audio equipment to achieve the best sound quality. We offer a variety of sizes and coatings, providing flexible solutions to meet specific requirements. Please contact us to learn about our products and services!
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The Diameter Magnetized NdFeB Ring Magnet is a high-performance magnet designed specifically for audio equipment. Manufactured by Yueci, this magnet features superior magnetic strength and reliability, making it ideal for applications that require precision and stability.


These magnets are available in a variety of grades, from N35 to N52, ensuring you can choose the right strength for your application. With a tolerance of ±1%, you can be confident in the consistency and quality of each magnet.


The Diameter Magnetized NdFeB Ring Magnet can be customized to your exact specifications. Its magnetization direction is flexible, allowing you to choose axial, diameter, or other configurations as needed.


We also offer a variety of coating options to protect the magnet from corrosion and ensure long-lasting performance. Coating options include Ni-Cu-Ni, zinc, epoxy, and gold, allowing you to customize the magnet for different environmental conditions.


With its high magnetic force, durable coating, and customizable features, this magnet is a perfect choice for use in motors, generators, and industrial audio equipment.


Product Attributes Table


Parameter Value
Tolerance ±1%
Grade N35 to N52, Customized
Material NdFeB (Neodymium Magnet)
Shape Customized (Disc, Block, Ring, etc.)
Coating Ni-Cu-Ni, Zn, Epoxy, Ni-Au, etc.
Magnetization Direction Axial, Diameter, Customized
Magnetic Force Customized
Application Industrial, Generator, Motor, Audio Equipment
Place of Origin Jiangxi, China
Delivery Time 22-30 days
Certification ISO9001:2008, RoHS, ISO/TS16949:2009
Founded Since 2012


Features of Diametrically Magnetised NdFeB Ring Magnet 


Material: Made of high strength N52 grade NdFeB (neodymium iron boron) for durability and superior performance.


Custom Sizes: Custom sizes available to meet specific customer requirements.


Coating Options: Choose from a variety of coatings including zinc, nickel, gold, nickel copper nickel and epoxy for protection and durability.


Quality Control: SST tested for 24-72 hours with a pass rate of up to 98%.


Advantages of Diametrically Magnetised NdFeB Ring Magnet 


Wide Range of Grades: Available in grades from N35 to N54, including high temperature grades such as N35H and N50UH for demanding applications.


Customizable Shapes: Available in a variety of shapes such as cylindrical, disc, ring, block, countersunk, and irregular shapes to meet specific requirements.


Flexible Sizes: Available in custom sizes, allowing you to select a magnet that fits your equipment and application needs.


Various Coatings: Available in a variety of coating options including zinc, nickel-copper-nickel, gold, and epoxy for enhanced corrosion resistance.


Precision Manufacturing: Manufactured to tight tolerances to provide reliable performance in industrial and audio applications.


Versatile Applications: Ideal for audio equipment, motors, generators, and other industrial uses requiring high magnetic performance.


Applications of Diametrically Magnetised NdFeB Ring Magnet 


Speaker Systems: Used in high-quality speakers for magnetic coupling and sound enhancement.


Hard Drives: Ideal for use in data storage devices that require stable and strong magnets.


Audio Devices: Commonly used in microphones, pickups, headphones, and speakers for clear and efficient sound transmission.


Dentures: Used in dental applications to ensure a secure connection and ease of use.


Magnetic Coupled Pumps: Essential in pumps for contactless energy transfer to prevent leakage.


Door Locks: Used in door mechanisms for secure closure without mechanical parts.


Motors and Generators: Used in motors and generators for efficient power conversion.


Jewelry: Used in magnetic jewelry for innovative designs and functionality.


Bearings: Used in bearings for precise motion control in a variety of mechanical applications.


FAQs of Diametrically Magnetised NdFeB Ring Magnet 


1. What is a Diameter Magnetized NdFeB Ring Magnet?


A Diameter Magnetized NdFeB  Ring Magnet is a magnet with a magnetic field that runs through its diameter. It is often used in applications that require strong, concentrated magnetic force, such as audio equipment.


2. What are the applications of Diameter Magnetized NdFeB  Ring Magnets?


These magnets are often used in speaker systems, microphones, headphones, hard drives, and other audio equipment. They are also used in motors, generators, and magnetically coupled pumps.


3. What are the strengths and grades of these magnets?


Yueci offers a range of grades from N35 to N52 for optimal strength, including options for different temperatures (e.g. N35M to N54H).


4. How durable are Diameter Magnetized NdFeB Ring Magnets?


These magnets are made of high-strength N52 NdFeB (Neodymium Iron Boron), ensuring excellent durability and performance in demanding applications.


5. Do these magnets have a quality control process?


Yes, we conduct thorough quality control, including 24-72 hours of SST (Salt Spray Test), ensuring a high pass rate of 98%.


Grade Br Hc Hcb BH(max)
mT kGs kOe kA/m kOe kA/m MGOe kJ/m³
min max min max min min min min min max min max
N25 980 1020 9.8 10.2 8 637

22 27 175 215
N28 1030 1070 10.3 10.7 8.5 677

25 30 199 239
N30 1060 1100 10.6 11 9.5 756

27 32 215 255
N33 1120 1140 11.2 11.4 10.5 836

30 35 239 279
N34 1140 1170 11.4 11.7 11 876

31 36 247 287
N35 1180 1220 11.8 12.2 12 955 10.9 868 33 37 263 295
N38 1230 1250 12.3 12.5 12 955 11.3 899 36 40 287 318
N40 1260 1280 12.6 12.8 12 955 11.6 923 38 42 302 334
N42 1290 1320 12.9 13.2 12 955 11.6 923 40 44 318 350
N45 1330 1380 13.3 13.8 12 955 11.0 876 43 47 342 374
N48 1370 1420 13.7 14.2 12 955 11.2 892 45 50 358 398
N50 1390 1440 13.9 14.4 12 955 11.0 876 47 52 374 414
N52 1420 1470 14.2 14.7 12 955 11.0 876 49 54 390 4.30
N54 1450 1490 14.5 14.9 11 876 9.0 716 51 56 406 446
N55 1460 1520 14.6 15.2 11 876 9.0 716 52 57 414 454
N56 1470 1530 14.7 15.3 11 876 9.0 716 53 58 422 462
N58 1490 1550 14.9 15.5 11 876 9.0 716 55 60 438 478
35M 1180 1220 11.8 12.2 14 1114 10.9 868 33 37 263 295
38M 1230 1250 12.3 12.5 14 1114 11.3 899 36 40 287 318
40M 1260 1280 12.6 12.8 14 1114 11.6 923 38 42 302 334
42M 1290 1320 12.9 13.2 14 1114 12.0 955 40 44 318 350
45M 1330 1380 13.3 13.8 14 1114 12.5 995 43 47 342 374
48M 1370 1420 13.7 14.2 14 1114 12.8 1019 45 50 358 398
50M 1390 1440 13.9 14.4 14 1114 13.0 1035 47 52 374 414
52M 1420 1470 14.2 14.7 13 1035 12.5 995 49 54 390 430
55M 1460 1520 14.6 15.2 13 1035 12.8 1019 52 57 414 454
30H 1080 1140 10.8 11.4 17 1353 10.3 820 27 32 215 255
33H 1140 1180 11.4 11.8 17 1353 10.6 844 31 35 247 279
35H 1180 1220 11.8 12.2 17 1353 10.9 868 33 37 263 295
38H 1230 1250 12.3 12.5 17 1353 11.3 899 36 40 287 318
Grade Br Hci Hcb BH(max)
mT kGs kOe kA/m kOe kA/m MGOe kJ/m^3
min max min max min min min min min max min max
40H 1260 1280 12.6 12.8 17 1353 11.6 923 38 42 302 334
42H 1290 1320 12.9 13.2 17 1353 12.0 955 40 44 318 350
45H 1330 1380 13.3 13.8 17 1353 12.2 971 43 47 342 374
48H 1370 1420 13.7 14.2 17 1353 12.9 1027 45 50 358 398
50H 1390 1440 13.9 14.4 17 1353 13.0 1035 47 52 374 414
52H 1420 1470 14.2 14.7 17 1353 13.2 1051 49 54 390 430
54H 1440 1500 14.4 15 16 1274 13.5 1075 51 56 406 446
55H 1460 1520 14.6 15.2 16 1274 13.5 1075 52 57 414 454
30SH 1080 1140 10.8 11.4 20 1592 10.3 820 27 32 215 255
33SH 1140 1170 11.4 11.7 20 1592 10.6 844 31 35 247 279
35SH 1180 1220 11.8 12.2 20 1592 11.0 876 33 37 263 295
38SH 1230 1250 12.3 12.5 20 1592 11.4 907 36 40 287 318
40SH 1260 1280 12.6 12.8 20 1592 11.8 939 38 42 302 334
42SH 1290 1320 12.9 13.2 20 1592 12.2 971 40 44 318 350
45SH 1330 1380 13.3 13.8 20 1592 12.3 979 43 47 342 374
48SH 1370 1420 13.7 14.2 20 1592 12.5 995 45 50 358 398
50SH 1390 1440 13.9 14.4 19 1512 13.0 1035 47 52 374 414
52SH 1420 1470 14.2 14.7 19 1512 13.2 1051 49 54 390 430
54SH 1450 1500 14.5 15 19 1512 13.5 1075 51 56 406 446
30UH 1080 1130 10.8 11.3 25 1990 10.2 812 28 32 223 255
33UH 1140 1170 11.4 11.7 25 1990 10.7 852 31 35 247 279
35UH 1180 1220 11.8 12.2 25 1990 10.8 860 33 37 263 295
38UH 1230 1250 12.3 12.5 25 1990 11.0 876 36 40 287 318
40UH 1260 1280 12.6 12.8 25 1990 11.5 915 38 42 302 334
42UH 1290 1330 12.9 13.3 25 1990 12.2 971 40 44 318 350
45UH 1330 1380 13.3 13.8 25 1990 12.6 1003 43 47 342 374
48UH 1370 1420 13.7 14.2 24 1910 12.5 995 45 50 358 398
50UH 1390 1440 13.9 14.4 24 1910 13.0 1035 47 52 374 414
52UH 1420 1470 14.2 14.7 24 1910 13.2 1051 49 54 390 430
30EH 1080 1130 10.8 11.3 30 2388 10.2 812 28 32 223 255
33EH 1140 1170 11.4 11.7 30 2388 10.3 820 31 35 247 279
35EH 1180 1220 11.8 12.2 30 2388 10.5 836 33 37 263 295
38EH 1220 1250 12.2 12.5 30 2388 11.5 915 35 40 279 318
40EH 1250 1280 12.5 12.8 30 2388 11.9 947 37 42 295 334
42EH 1280 1320 12.8 13.2 29 2308 12.2 971 39 44 310 350
45EH 1320 1380 13.2 13.8 29 2308 12.6 1003 42 47 334 374
48EH 1370 1420 13.7 14.2 29 2308 12.5 995 45 50 358 398
50EH 1390 1440 13.9 14.4 29 2308 13.0 1035 47 52 374 414
Grade Br Hcj Hcb BH(max)
mT kGs kOe kA/m kOe kA/m MGOe kJ/m^3
mim max mm TR min min min mim mml m2x min max
28AH 1020 1090 10.2 10.9 34 2760 9.8 780 25 30 199 239
30AH 1070 1130 10.7 11.3 34 2760 10.2 812 27 32 215 255
33AH 1110 1170 11.1 11.7 34 2706 10.5 836 30 35 239 279
35AH 1170 1220 11.7 12.2 34 2706 10.5 836 32 37 255 295
38AH 1220 1250 12.2 12.5 34 2706 11.5 915 35 40 279 318
40AH 1250 1280 12.5 12.8 34 2706 11.9 947 37 42 295 334
42AH 1280 1320 12.8 13.2 34 2706 12.2 971 39 44 310 350


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  catherinezhu@yuecimagnet.com
  +8617870054044
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