huge big size 250mm neodymium magnet ring for bldc motor
Large sintered neodymium magnet ring, has strong magnetic force. Can be used for motor, the grade and coating of magnet optional.
Item NO.:
KINGS MAGNETOrder(MOQ):
10Payment:
100% in advanceProduct Origin:
ChinaShipping Port:
Xiamen/Ningbo/ShanghaiColor:
Ni Coating/Zinc Coating/Epoxy Coating/CustomLead Time:
28-35 daysProduct Description
Ndfeb magnets are the strongest rare earth magnets on the market and come in a variety of shapes, sizes and grades. It has a wide range of applications and can be used in industry and our daily lives.
Because it easily reacts with oxygen and is easily corroded. Therefore, NdFeB magnets must be coated. You can choose different coatings according to different usage requirements.
We accept customized magnets of any reasonable size and shape. You are welcome to consult us with drawings.
1.Grade of NdFeB magnet
|
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（The range of sizes we can produce）
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.Technological process of production of Sintered NdFeb magnet
6.The display of large neodymium ring
7.Certificate
8.Packing & Delivery
9.FAQ
1. Who are we?
We are based in Fujian, China, start from 2014, sell to North America(20.00%), Oceania(15.00%), Western Europe(15.00%), Eastern Asia(10.00%), Southern Europe(10.00%), Northern Europe(10.00%), Eastern Europe(10.00%), South Asia(5.00%), Southeast Asia(3.00%), Mid East(2.00%).
2. How can we guarantee quality?
Always a pre-production sample before mass production.
Always final Inspection before shipment.
3. What can you buy from us?
Neodymium Magnet / Bonded Neodymium Magnet / Pot Magnet / Rubber Coated Magnet / Magnetic Welding Holder / Alnico Magnet.
4. Why choose us?
* Rich Business Experience
* Excellent Service Spirit
* Fast Shipping Channel
* Abundant Material Resources
* High-quality Product
* Competitive Price
5. What services can we provide?
*Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDU,Express Delivery；
*Accepted Payment Currency:USD,EUR,CNY;
*Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union;
*Language Spoken:English,Chinese
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 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
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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