Zinc coatings provide good adhesion, you can keep an eye on the magnets in the motor, many are galvanized coatings, which are used to protect the magnets from corrosion in the surrounding air and provide mild moisture, water or salt water protection. However, if the magnet is in a humid environment, it is not a suitable choice. It has a thickness of 4-10 um and a maximum operating temperature of about 120°C. Zinc coatings are mainly used for low temperature applications and where a little protective barrier is needed.
Brand:
KINGS MAGNETItem NO.:
NPayment:
100%/70%INVOICEProduct Origin:
ChinaShipping Port:
Xiamen/Ningbo/ShanghaiColor:
SliverLead Time:
25-30 daysProduct Description
Zinc coatings provide good adhesion, you can keep an eye on the magnets in the motor, many are galvanized coatings, which are used to protect the magnets from corrosion in the surrounding air and provide mild moisture, water or salt water protection. However, if the magnet is in a humid environment, it is not a suitable choice. It has a thickness of 4-10 um and a maximum operating temperature of about 120°C. Zinc coatings are mainly used for low temperature applications and where a little protective barrier is needed.
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℃ |
L(mm) |
W(mm) |
H (mm) |
T (mm) |
Direction of Magnetzation |
L ≦ 200 |
W ≦ 100 |
3 ≦ H ≦ 60 |
1.5 ≦ T ≦ 50 |
Diametrical Magnetized |
3.Direction of magnetization of Ndfeb magnet.
4.Coating
1. what is magnet coating?
The magnet coating is used to reduce the sensitivity of the magnet to corrosion and other negative environmental factors that can degrade the magnet, and the strong magnet coating is similar to ordinary paint, except that it is mixed with tiny iron powder particles. Rare earth magnetic coating materials include nickel, copper, chromium, gold, black zinc, epoxy resin and so on. The magnet coating is very thin, so it has almost no effect on the magnetic properties of the magnet itself.
2.Why and when do magnets need coating?
Neodymium iron boron surface treatment is not to improve its performance, neodymium magnet surface coating mainly plays a protective role. No surface coating of NdFeb strong magnets, it is easy to react with oxygen in the air and quickly oxidize, so in order to prevent this from happening, we usually carry out plating treatment. Moreover, the appearance of the strong magnet after electroplating is more beautiful.
5.Application
1. Daily necessities: bags, suitcases, clothing, cups, gloves, jewelry, pillows, photo frames, watches;
2. Electronic products: computer, keyboard, display, smart bracelet, mobile phone, sensor, GPS locator, camera, Bluetooth, audio, LED;
3. Home: locks, tables, chairs, cabinets, beds, Windows, curtains, knives, lighting, hooks, ceilings;
4. Mechanical equipment and automation: motor, drone, elevator, security monitoring, dishwasher, magnetic crane, magnetic filter.
6.Technological process of production of sintered NdFeb magnet.
7.Transportation
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.
4.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 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.