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Magnet With Countersunk Hole

neodymium magnets with hole
neodymium magnets with hole
neodymium magnets with hole
neodymium magnets with hole

n52 neodymium round magnets with hole

Grades N35, N38, N40, N42, N48, N50, and N52 ( M, H, SH, UH, EH, AH series ) are available for all shapes & sizes of NdFeB magnets.

  • Brand:

    KINGS MAGNET
  • Item NO.:

    N
  • Payment:

    100%/70%INVOICE
  • Product Origin:

    China
  • Shipping Port:

    Xiamen/Ningbo/Shanghai
  • Color:

    Nickel,Zinc,Epoxy,etc.
  • Lead Time:

    25-35days

Product  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.Direction of magnetization of Ndfeb magnet.

3.Coating

 

4.Application

1. Motors

2. Sensors

3. Microphones

4. Wind turbines

5. Wind generators,etc.

5.Technological process of production of Sintered NdFeb magnet.

6.Our Workshop

 

7.Our  Certificate

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.

 

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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