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Black Epoxy Neodymium Disc Magnet

Epoxy magnets for humid environments
Epoxy magnets for humid environments
Epoxy magnets for humid environments
Epoxy magnets for humid environments

Black Epoxy Neodymium Disc Magnet

Unlike gold, zinc and nickel, an epoxy magnet coating acts as an excellent barrier to salt, ambient air, water or moisture. But it's slightly more expensive than the first three alternatives. Although it is easy to scratch, with a thickness of 15-30 um, it has good adhesion to steel with magnetic glue. Epoxy coatings are mainly used in the Marine, motor, sensor, automotive and consumer goods industries.

  • Brand:

    KINGS MAGNET
  • Item NO.:

    N
  • Payment:

    100%/70%INVOICE
  • Product Origin:

    China
  • Shipping Port:

    Xiamen/Ningbo/Shanghai
  • Color:

    Black
  • Lead Time:

    25-30 days

Product Detail

Unlike gold, zinc and nickel, an epoxy magnet coating acts as an excellent barrier to salt, ambient air, water or moisture. But it's slightly more expensive than the first three alternatives. Although it is easy to scratch, with a thickness of 15-30 um, it has good adhesion to steel with magnetic glue. Epoxy coatings are mainly used in the Marine, motor, sensor, automotive and consumer goods industries.

 

1. Grade of NdFeB magnets.

If your application is only at room temperature, the N-series is the best choice, with a maximum operating temperature of 80 degrees Celsius. In general, the N35 is relatively cost-effective, and the magnetic force is also relatively strong.

But which level you choose depends on your pursuit or application of magnetism.

The higher the resistance temperature of the magnet, the more expensive the price. For example, the N35 class and the N35M class have the same magnetic force, but the maximum operating temperature of the N35M is 100 degrees Celsius, and the N35 is only Celsius.

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.Direction of magnetization of Ndfeb magnet.

 

3.Common 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.

 

4.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.

 

5.Technological process of production of sintered NdFeb magnet.

 

6.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.

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