D25*5 Diametrical Neodymium Round Ring Magnets
Neodymium is named as"Magnet King" for its high remanence, high energy. Moreover, it has the high performance and high-cost ration, because of the rich rare earth resources in China and the ever-changing production process and technological progress.
Brand:
KINGS MAGNETItem NO.:
NPayment:
100%/70%INVOICEProduct Origin:
ChinaShipping Port:
Xiamen/Ningbo/ShanghaiColor:
Nickel，Zinc，Epoxy，etc.Lead Time:
25-30 daysProduct Description
NdFeB magnets are the strongest rare earth magnets on the market manufactured in a wide range of shapes, sizes and grades. Xiamen Kings Magnet Co.Ltd，founded in 2014, is a benchmark enterprise in China's magnet manufacturing industry. We have a complete industrial chain from raw material blank, cutting, plating to standard packaging.
1.Grade of NdFeB magnet.
Neodymium magnets are graded according to their material. In general, the higher the score (the number after N),the stronger the magnet. The highest grade of neodymium magnet currently available is N52. Any letter following the grade refers to the temperature rating of the magnet. If there are no letters following the grade, then the magnet is standard temperature neodymium. The temperature ratings are standard (no designation) - M - H - SH - UH - EH.
|
Grade |
BrmT(KG) |
bHc KA/m(KOe) |
iHc KA/m(KOe) |
(BH)maxKJ/m3 (MGOe) |
Tw.℃ |
|
N35 |
1170-1220(11.7-12.2) |
≥868( ≥10.9) |
≥955(≥12) |
263-287(33-36) |
80℃ |
|
N38 |
1220-1250(12.2_12.5) |
≥899( ≥11.3) |
≥955 ( ≥12) |
287-310(36-39) |
80℃ |
|
N40 |
1250-1280 (12.5-12.8) |
≥907 ( ≥11.4) |
≥955 ( ≥12) |
302-326(38-41) |
80℃ |
|
N42 |
1280-1320(12.8-13.2) |
≥915( ≥11.5) |
≥955 ( ≥12) |
318-342(40-43) |
80℃ |
|
N45 |
1320-1380(13.2-13.8) |
≥923 ( ≥11.6) |
≥955 ( ≥12) |
342-366(43-46) |
80℃ |
|
N48 |
1380-1420(13.8-14.2) |
≥923( ≥11.6) |
≥955 ( ≥12) |
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℃ |
|
35M |
1170-1220(11.7-12.2) |
≥868( ≥10.9) |
≥1114 ( ≥14) |
263-287(33-36) |
100℃ |
|
38M |
1220-1250(12.2-12.5) |
≥899( ≥11.3) |
≥1114(≥14) |
287-310(36-39) |
100℃ |
|
40M |
1250-1280(12.5-12.8) |
≥923( ≥11.6) |
≥1114 ( ≥14) |
302-326(38-40) |
100℃ |
|
42M |
1280-1320(12.8-13.2) |
≥955(≥12.0) |
≥1114( ≥14) |
318-342(40-43) |
100℃ |
|
45M |
1320-1380(13.2-13.8) |
≥955 ( ≥12.5) |
≥1114( ≥14) |
342-366(43-46) |
100℃ |
|
48M |
1360-1430(13.6-14.3) |
≥1027( ≥12.9) |
≥1114 ( ≥14) |
366-390(46-49) |
100℃ |
|
50M |
1400-1450(14.0-14.5) |
≥1033 ( ≥13.0) |
≥1114 ( ≥14) |
382-406(48-51) |
100℃ |
|
35H |
1170-1220(11.7-12.2) |
≥868( ≥10.9) |
≥1353 ( ≥17) |
263-287(33-36) |
120℃ |
|
38H |
1220-1250(12.2-12.5) |
≥899( ≥11.3) |
≥1353 ( ≥17) |
287-310(36-39) |
120℃ |
|
40H |
1250-1280(12.5-12.8) |
≥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) |
326-358(43-46) |
120℃ |
|
48H |
1370-1430(13.7-14.3) |
≥955 ( ≥12.5) |
≥1353 ( ≥17) |
366-390(46-49) |
120℃ |
|
30SH |
1080-1130(10.8-11.3) |
≥804 ( ≥10.1) |
≥1592 ( ≥20) |
233-247(28-31) |
150℃ |
|
33SH |
1130-1170(11.3-11.7) |
≥844( ≥10.6) |
≥1592 ( ≥20) |
247-271(31-34) |
150℃ |
|
35SH |
1170-1220(11.7-12.2) |
≥876( ≥11.0) |
≥1592 ( ≥20) |
263-287(33-36) |
150℃ |
|
38SH |
1220-1250(12.2-12.5) |
≥907(≥11.4) |
≥1592 ( ≥20) |
287-310(36-39) |
150℃ |
|
40SH |
1240-1280(12.5-12.8) |
≥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℃ |
|
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℃ |
|
40EH |
1240-1280(12.4-12.8) |
≥939(≥11.6) |
≥2388 ( ≥30) |
302-326(38-41) |
200℃ |
|
30AH |
1080-1120(10.8-11.2) |
≥804( ≥10.1) |
≥2786( ≥35) |
223-239(28-30) |
220℃ |
|
33AH |
1140-1170(11.4-11.7) |
≥844( ≥10.6) |
≥2786 ( ≥35) |
247-263(31-33) |
220℃ |
|
35AH |
1170-1210(11.7-12.1) |
≥876( ≥10.9) |
≥2786( ≥35) |
263-279(33-35) |
220℃ |
2.Size
Ring neodymium magnet:
|
Outer Diameter(mm) |
Inner Daimeter(mm) |
Hight (mm) |
Tolerance or Wall Thickness (mm) |
Direction of Magnetzation |
|
3 ≦ OD ≦ 240 |
1 ≦ ID ≦ 200 |
1 ≦ H ≦ 80 |
+/-0.05 - +/-0.1 |
Axial Magnetized |
|
3 ≦ OD ≦ 90 |
1 ≦ ID ≦ 70 |
1 ≦ H ≦ 80 |
+/-0.05 - +/-0.1 |
Diametrical Magnetized |
|
20 ≦ OD ≦ 75 |
15 ≦ ID ≦ 68 |
5 ≦ H ≦ 50 |
2 ≦ T ≦ 7 |
Radial Magnetized |
3.Direction of magnetization of Ndfeb magnet.
4.Coating
5.Application
1. Motors
2. Magnetic separation
3. Microphones
4. Wind turbines
5. Wind generators，etc.
6.Technological process of production of Sintered NdFeb magnet.
7.Our Workshop
8.Transportation
9.Our Certificate
Why did you choose us？
1.We have ten years' experience in making magnets.
2.We are committed to the development and production of high-performance, high-precision and difficult products, in order to meet the requirements of motors, sensors and other products for magnets to work stably under complex conditions such as high temperature.
3.We work with a lot of companies like Schneider Electronics; Continental; Liebherr-CMCtec GmbH; DAC Electric B.V; Quadral GmbH & Co. KG; MEMSIC; TNE Korea Co., Ltd; HPV Technologies Inc; Dantax Radio AS; Audio Note UK LTD(in UK) ; Stage Accompany; Audeze; Jahwa Electronics etc.
FAQ
Q1. Why is the price of sample higher than that of batch?
A: For samples we don't have any profit. We only charge the cost of materials and labor. As a manufacturer, the more quantity produced, the lower the unit cost.
Q2. Why I should pay the Magnetic inspection fee? What is Magnetic inspection fee?
A: The freight is only paid by us to the transportation company for you, and the magnetic inspection fee is also a necessary cost generated in the process of transportation.
Freight companies require magnetic inspection reports when transporting magnets.Magnetic inspection report is a report provided by a professional magnetic inspection agency after testing that the magnet meets the transportation standards.
Q3.Why do I get magnets that break so easily?
A: Magnets are designed to be brittle and fragile. Remove the metal from the working area before using the magnet. Keep the distance between the magnets when using them at the same time. Even small magnets attracted to each other can break with such force.
Q4. Do you support exchange and return service?If I buy a magnet and I can't use it.
A: We do not support return or exchange service. As you know, the magnet is a custom product, which is completely customized according to your requirements. This product cannot be resold to others.
Q5. What will you do if there is a quality problem?
A: If you have any problem after receiving the magnet, please contact us immediately and shoot a video to us. We make records and take pictures of all the details when we ship. If it's our fault, we'll take the blame. If it happened in transit, we are not responsible for it.
Neodymium is named as "Magnet King" for its high remanence, high energy. Moreover, it has the high performance and high-cost ration, because of the rich rare earth resources in China and the ever-changing production process and technological progress.
Neodymium is named as"Magnet King" for its high remanence, high energy. Moreover, it has the high performance and high-cost ration, because of the rich rare earth resources in China and the ever-changing production process and technological progress.
Neodymium magnet (NdFeB), commonly known as "rare earth" magnet, is a high-performance permanent magnet made of neodymium, iron and boron alloys.
Ndfeb magnetic materials are widely used in various industries, and we support customization of various sizes
Large sintered neodymium magnet ring, has strong magnetic force. Can be used for motor, the grade and coating of magnet optional.
Neodymium(NdFeB) magnets are the strongest type of rare earth magnet commercially available and are manufactured in a wide range of shapes, sizes and grades.
Black epoxy coated sintered neodymium magnet ring. Can be used for motor, sensor and so on. Custom size and grade.
Neodymium(NdFeB) magnets are the strongest type of rare earth magnet commercially available and are manufactured in a wide range of shapes, sizes and grades.
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