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

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

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Supplier Homepage Product NdFeB Magnet Strong Round Permanent Neodymium Magnet

Strong Round Permanent Neodymium Magnet

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
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Production Capacity: 1000000 Pieces Per Month
Transport Package: Standard Air or Sea Package
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: Round
  • Application: Industrial Magnet
  • Density: 7.4 -7.6 G/ Cm3
  • Composition: NdFeB Magnet
  • Specification: Round
  • HS Code: 8505111000
  • Shape: Round
  • Coating: Nickel
  • Type: Permanent
  • Trademark: Sine
  • Origin: Ningbo
Product Description
Strong Round Permanent Neodymium Magnet

1. Materials: Sintered Neodymium-Iron-Boron;
2. Magnetic properties:
(1) High coercive force;
(2) High pull power
(3) Highest (BH)max reaches up to 51MGOe.
3. Grades: N grade like N48, N50, N52 poessess strong power. If you have special requirements on the temperature, you could choose M, H, SH, UH, EH grade.
4. Sizes. Diameter and thickness at your choice.
5. Shape. Round. If you need other shapes, we can make it for you.
6. Coatings: Nickel coating. Others like Zinc, gold, silver, epoxy are also availble.
7. The quality control: Our expert quality control department ensure magnets are high quality.
8. Applications: Sensors, motors, rotors, wind turbine, wind generators, speakers, loudspeakers, etc.
Technical Data of Sintered NdFeB Magnet
Grade Br Hcb Hcj (BH)max  (Tw)
mT (kGs) kA/m (kOe) kA/m (kOe) kJ/m3 (MGOe)
N35 1170-1220 (11.7-12.2) ≥868 ( ≥10.9) ≥955 ( ≥12) 263-287 (33-36) 80 ºC
N38 1220-1250 (12.2-12.5) ≥899 ( ≥11.3) ≥955 ( ≥12) 287-310 (36-39) 80 ºC
N40 1250-1280 (12.5-12.8) ≥907 ( ≥11.4) ≥955 ( ≥12) 302-326 (38-41) 80 ºC
N42 1280-1320 (12.8-13.2) ≥915 ( ≥11.5) ≥955 ( ≥12) 318-342 (40-43) 80 ºC
N45 1320-1380 (13.2-13.8) ≥923 ( ≥11.6) ≥955 ( ≥12) 342-366 (43-46) 80 ºC
N48 1380-1420 (13.8-14.2) ≥923 ( ≥11.6) ≥876 ( ≥12) 366-390 (46-49) 80 ºC
N50 1400-1450 (14.0-14.5) ≥796 ( ≥10.0) ≥876 ( ≥11) 382-406 (48-51) 60 ºC
N52 1430-1480 (14.3-14.8) ≥796 ( ≥10.0) ≥876 ( ≥11) 398-422 (50-53) 60 ºC
30M 1080-1130 (10.8-11.3) ≥796 ( ≥10.0) ≥1114 ( ≥14) 223-247 (28-31) 100 ºC
33M 1130-1170 (11.3-11.7) ≥836 ( ≥10.5) ≥1114 ( ≥14) 247-263 (31-33) 100 ºC
35M 1170-1220 (11.7-12.2) ≥868 ( ≥10.9) ≥1114 ( ≥14) 263-287 (33-36) 100 ºC
38M 1220-1250 (12.2-12.5) ≥899 ( ≥11.3) ≥1114 ( ≥14) 287-310 (36-39) 100 ºC
40M 1250-1280 (12.5-12.8) ≥923 ( ≥11.6) ≥1114 ( ≥14) 302-326 (38-41) 100 ºC
42M 1280-1320 (12.8-13.2) ≥955 ( ≥12.0) ≥1114 ( ≥14) 318-342 (40-43) 100 ºC
45M 1320-1380 (13.2-13.8) ≥995 ( ≥12.5) ≥1114 ( ≥14) 342-366 (43-46) 100 ºC
48M 1360-1430 (13.6-14.3) ≥1027 ( ≥12.9) ≥1114 ( ≥14) 366-390 (46-49) 100 ºC
50M 1400-1450 (14.0-14.5) ≥1033 ( ≥13.0) ≥1114 ( ≥14) 382-406 (48-51) 100 ºC
30H 1080-1130 (10.8-11.3) ≥796 ( ≥10.0) ≥1353 ( ≥17) 223-247 (28-31) 120 ºC
33H 1130-1170 (11.3-11.7) ≥836 ( ≥10.5) ≥1353 ( ≥17) 247-271 (31-34) 120 ºC
35H 1170-1220 (11.7-12.2) ≥868 ( ≥10.9) ≥1353 ( ≥17) 263-287 (33-36) 120 ºC
38H 1220-1250 (12.2-12.5) ≥899 ( ≥11.3) ≥1353 ( ≥17) 287-310 (36-39) 120 ºC
40H 1250-1280 (12.5-12.8) ≥923 ( ≥11.6) ≥1353 ( ≥17) 302-326 (38-41) 120 ºC
42H 1280-1320 (12.8-13.2) ≥955 ( ≥12.0) ≥1353 ( ≥17) 318-342 (40-43) 120 ºC
45H 1300-1360 (13-13.6) ≥963 ( ≥12.1) ≥1353 ( ≥17) 326-358 (43-46) 120 ºC
48H 1370-1430 (13.7-14.3) ≥995 ( ≥12.5) ≥1353 ( ≥17) 366-390 (46-49) 120 ºC
30SH 1080-1130 (10.8-11.3) ≥804 ( ≥10.1) ≥1592 ( ≥20) 223-247 (28-31) 150 ºC
33SH 1130-1170 (11.3-11.7) ≥844 ( ≥10.6) ≥1592 ( ≥20) 247-271 (31-34) 150 ºC
35SH 1170-1220 (11.7-12.2) ≥876 ( ≥11.0) ≥1592 ( ≥20) 263-287 (33-36) 150 ºC
38SH 1220-1250 (12.2-12.5) ≥907 ( ≥11.4) ≥1592 ( ≥20) 287-310 (36-39) 150 ºC
40SH 1240-1280 (12.5-12.8) ≥939 ( ≥11.8) ≥1592 ( ≥20) 302-326 (38-41) 150 ºC
42SH 1280-1320 (12.8-13.2) ≥987 ( ≥12.4) ≥1592 ( ≥20) 318-342 (40-43) 150 ºC
45SH 1320-1380 (13.2-13.8) ≥1003 ( ≥12.6) ≥1592 ( ≥20) 342-366 (43-46) 150 ºC
28UH 1020-1080  (10.2-10.8) ≥764 ( ≥9.6) ≥1990 ( ≥25) 207-231 (26-29) 180 ºC
30UH 1080-1130  (10.8-11.3) ≥812 ( ≥10.2) ≥1990 ( ≥25) 223-247 (28-31) 180 ºC
33UH 1130-1170 (11.3-11.7) ≥852 ( ≥10.7) ≥1990 ( ≥25) 247-271 (31-34) 180 ºC
35UH 1180-1220 (11.8-12.2) ≥860 ( ≥10.8) ≥1990 ( ≥25) 263-287 (33-36) 180 ºC
38UH 1220-1250 (12.2-12.5) ≥876 ( ≥11.0) ≥1990 ( ≥25) 287-310 (36-39) 180 ºC
40UH 1240-1280 (12.5-12.8) ≥899 ( ≥11.3) ≥1990 ( ≥25) 302-326 (38-41) 180 ºC
28EH 1040-1090 (10.4-10.9) ≥780 ( ≥9.8) ≥2388 ( ≥30) 207-231 (26-29) 200 ºC
30EH 1080-1130 (10.8-11.3) ≥812 ( ≥10.2) ≥2388 ( ≥30) 223-247 (28-31) 200 ºC
33EH 1130-1170 (11.3-11.7) ≥836 ( ≥10.5) ≥2388 ( ≥30) 247-271 (31-34) 200 ºC
35EH 1170-1220 (11.7-12.2) ≥876 ( ≥11.0) ≥2388 ( ≥30) 263-287 (33-36) 200 ºC
38EH 1220-1250 (12.2-12.5) ≥899 ( ≥11.3) ≥2388 ( ≥30) 287-310 (36-39) 200 ºC
28AH 1040-1090 (10.4-10.9) ≥787 ( ≥9.9) ≥2624 ( ≥33) 207-231 (26-29) 230 ºC
30AH 1080-1130 (10.8-11.3) ≥819 ( ≥10.3) ≥2624 ( ≥33) 223-247 (28-31) 230 ºC
33AH 1130-1170 (11.3-11.7) ≥843 ( ≥10.6) ≥2624 ( ≥33) 247-271 (31-34) 230 ºC
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