Gold Member Since 2012
Audited Supplier
Ningbo Sine Magnetic Co., Ltd.

Neodymium Magnet, Magnet, Ndfeb Magnet manufacturer / supplier in China, offering Permanent Strong Neodymium Round Magnet, Convenient Innovation Magnetic Writing Board/ Promotion Gift, Ring Neodymium (NdFeB) Magnet and so on.

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Supplier Homepage Product NdFeB Magnet Permanent Strong Neodymium Round Magnet

Permanent Strong Neodymium Round Magnet

FOB Price: Get Latest Price
Min. Order: 1 Piece
Production Capacity: 100000 PCS Per Month
Transport Package: Standard Air or Sea Package
Payment Terms: L/C, T/T, D/P, Paypal, Money Gram, Western Union

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Basic Info
  • Model NO.: Round
  • Application: Industrial Magnet
  • Grade: All
  • Composition: NdFeB Magnet
  • Specification: iso, rohs
  • HS Code: 8505119000
  • Shape: Round
  • Coating: Nickel
  • Type: Permanent
  • Trademark: Sine
  • Origin: Ningbo
Product Description
Neodymium permanent magnets (ND-Fe-B) are composed of neodymium, iron, boron and a few transition metals. These magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.

Attributes of Neodymium

1. Very high resistance to demagnetization
2. High energy for size
3. Good in ambient temperature
4. Moderately priced
5. Material is corrosive and should be coated for long term maximum energy output
6. Low working temperature for heat applications, but higher levels of heat resistance materials are being introduced periodically.

Applications of Neodymium

Magnetic separators, linear actuators, microphone assemblies, servo motors, DC motors (automotive starters), computer rigid disc drives, printers and speakers.
Technical Data of Sintered NdFeB Magnet
GradeBrHcbHcj(BH)max (Tw)
mT(kGs)kA/m(kOe)kA/m(kOe)kJ/m3(MGOe)
N351170-1220(11.7-12.2)≥868( ≥10.9)≥955( ≥12)263-287(33-36)80 ºC
N381220-1250(12.2-12.5)≥899( ≥11.3)≥955( ≥12)287-310(36-39)80 ºC
N401250-1280(12.5-12.8)≥907( ≥11.4)≥955( ≥12)302-326(38-41)80 ºC
N421280-1320(12.8-13.2)≥915( ≥11.5)≥955( ≥12)318-342(40-43)80 ºC
N451320-1380(13.2-13.8)≥923( ≥11.6)≥955( ≥12)342-366(43-46)80 ºC
N481380-1420(13.8-14.2)≥923( ≥11.6)≥876( ≥12)366-390(46-49)80 ºC
N501400-1450(14.0-14.5)≥796( ≥10.0)≥876( ≥11)382-406(48-51)60 ºC
N521430-1480(14.3-14.8)≥796( ≥10.0)≥876( ≥11)398-422(50-53)60 ºC
30M1080-1130(10.8-11.3)≥796( ≥10.0)≥1114( ≥14)223-247(28-31)100 ºC
33M1130-1170(11.3-11.7)≥836( ≥10.5)≥1114( ≥14)247-263(31-33)100 ºC
35M1170-1220(11.7-12.2)≥868( ≥10.9)≥1114( ≥14)263-287(33-36)100 ºC
38M1220-1250(12.2-12.5)≥899( ≥11.3)≥1114( ≥14)287-310(36-39)100 ºC
40M1250-1280(12.5-12.8)≥923( ≥11.6)≥1114( ≥14)302-326(38-41)100 ºC
42M1280-1320(12.8-13.2)≥955( ≥12.0)≥1114( ≥14)318-342(40-43)100 ºC
45M1320-1380(13.2-13.8)≥995( ≥12.5)≥1114( ≥14)342-366(43-46)100 ºC
48M1360-1430(13.6-14.3)≥1027( ≥12.9)≥1114( ≥14)366-390(46-49)100 ºC
50M1400-1450(14.0-14.5)≥1033( ≥13.0)≥1114( ≥14)382-406(48-51)100 ºC
30H1080-1130(10.8-11.3)≥796( ≥10.0)≥1353( ≥17)223-247(28-31)120 ºC
33H1130-1170(11.3-11.7)≥836( ≥10.5)≥1353( ≥17)247-271(31-34)120 ºC
35H1170-1220(11.7-12.2)≥868( ≥10.9)≥1353( ≥17)263-287(33-36)120 ºC
38H1220-1250(12.2-12.5)≥899( ≥11.3)≥1353( ≥17)287-310(36-39)120 ºC
40H1250-1280(12.5-12.8)≥923( ≥11.6)≥1353( ≥17)302-326(38-41)120 ºC
42H1280-1320(12.8-13.2)≥955( ≥12.0)≥1353( ≥17)318-342(40-43)120 ºC
45H1300-1360(13-13.6)≥963( ≥12.1)≥1353( ≥17)326-358(43-46)120 ºC
48H1370-1430(13.7-14.3)≥995( ≥12.5)≥1353( ≥17)366-390(46-49)120 ºC
30SH1080-1130(10.8-11.3)≥804( ≥10.1)≥1592( ≥20)223-247(28-31)150 ºC
33SH1130-1170(11.3-11.7)≥844( ≥10.6)≥1592( ≥20)247-271(31-34)150 ºC
35SH1170-1220(11.7-12.2)≥876( ≥11.0)≥1592( ≥20)263-287(33-36)150 ºC
38SH1220-1250(12.2-12.5)≥907( ≥11.4)≥1592( ≥20)287-310(36-39)150 ºC
40SH1240-1280(12.5-12.8)≥939( ≥11.8)≥1592( ≥20)302-326(38-41)150 ºC
42SH1280-1320(12.8-13.2)≥987( ≥12.4)≥1592( ≥20)318-342(40-43)150 ºC
45SH1320-1380(13.2-13.8)≥1003( ≥12.6)≥1592( ≥20)342-366(43-46)150 ºC
28UH1020-1080 (10.2-10.8)≥764( ≥9.6)≥1990( ≥25)207-231(26-29)180 ºC
30UH1080-1130 (10.8-11.3)≥812( ≥10.2)≥1990( ≥25)223-247(28-31)180 ºC
33UH1130-1170(11.3-11.7)≥852( ≥10.7)≥1990( ≥25)247-271(31-34)180 ºC
35UH1180-1220(11.8-12.2)≥860( ≥10.8)≥1990( ≥25)263-287(33-36)180 ºC
38UH1220-1250(12.2-12.5)≥876( ≥11.0)≥1990( ≥25)287-310(36-39)180 ºC
40UH1240-1280(12.5-12.8)≥899( ≥11.3)≥1990( ≥25)302-326(38-41)180 ºC
28EH1040-1090(10.4-10.9)≥780( ≥9.8)≥2388( ≥30)207-231(26-29)200 ºC
30EH1080-1130(10.8-11.3)≥812( ≥10.2)≥2388( ≥30)223-247(28-31)200 ºC
33EH1130-1170(11.3-11.7)≥836( ≥10.5)≥2388( ≥30)247-271(31-34)200 ºC
35EH1170-1220(11.7-12.2)≥876( ≥11.0)≥2388( ≥30)263-287(33-36)200 ºC
38EH1220-1250(12.2-12.5)≥899( ≥11.3)≥2388( ≥30)287-310(36-39)200 ºC
28AH1040-1090(10.4-10.9)≥787( ≥9.9)≥2624( ≥33)207-231(26-29)230 ºC
30AH1080-1130(10.8-11.3)≥819( ≥10.3)≥2624( ≥33)223-247(28-31)230 ºC
33AH1130-1170(11.3-11.7)≥843( ≥10.6)≥2624( ≥33)247-271(31-34)230 ºC

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