N42h Small Ring Magnet Magnetic Material For Motor Loudspeaker
Ndfeb magnetic materials are widely used in various industries, and we support customization of various sizes
Brand:
KINGS MAGNETOrder(MOQ):
20Payment:
100% in advanceProduct Origin:
ChinaShipping Port:
Xiamen/Ningbo/ShanghaiColor:
Galvanized, gold-plated, nickel-plated，Black epoxyLead Time:
25-35 daysProduct Description
Ndfeb magnets are the strongest rare earth magnets on the market and come in a variety of shapes, sizes and grades. As a supplier, we support the customization of various sizes to meet your various needs
1.Grade of NdFeB magnet.
The properties of NdFeb are divided according to different temperatures. You can choose the appropriate performance according to the actual operating temperature. The higher the temperature resistance, the higher the performance, and the more expensive the price.
|
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.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
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 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.
Q3. 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.
Q4. 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 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.
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