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Block Strong Permanent Neodymium Magnet (Block NdFeB Magnet)

China Block Strong Permanent Neodymium Magnet (Block NdFeB Magnet), Find details about China Ndfeb Magnet, Magnet from Block Strong Permanent Neodymium Magnet (Block NdFeB Magnet)

Model NO.
Block NdFeB
Origin
Ningbo
Model NO.
Block NdFeB
Origin
Ningbo
Strong Permanent Magnetic Material

Block Neodymium Magnet

1. Materials: Neodymium-Iron-Boron;

2. Technology: Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology;

3. Magnetic properties: High coercive force, the max operation temp is up to 200 degree centigrade or 380 curie temperature;

4. Grades: N35-N52, 30M-50M, 30H-48H, 30SH-45SH, 30UH-40UH and 30EH-38EH;

5. Shapes: Various shapes

6. Size: According to customers' request;

7. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;

8. Applications: Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.


Block NdFeB magnet

Block NdFeB magnet is an alloy magnet made from ND, Fe, B and other trace metal elements. It is a rare earth magnet known so far for the strongest magnetism as well as high performance (8MGOe-55MGOe) and good coercive force. Proven production process, strict quality assurance, complete technical service and remarkable cost performance.

Machining and tolerances

Neodymium is easily ground, although coolants must be used in the process to avoid spontaneous combustion of powder. Grinding should be completed before coating or plating is applied to protect the magnets from corrosion. Standard tolerances for neodymium magnets are +/-0.05mm for ground dimensions.

Temperature constraints

The temperature coefficient of neodymium has triggered several grades to be developed to meet specific operating requirements. Please refer to our chart of magnetic properties to compare the characteristics of each grade. Before choosing a neodymium magnet be sure to consider your application's maximum operating temperature.

Added value services

Our knowledgeable engineering department is always available to assist in determining the best grade and size of neodymium magnet for your application. We also offer coating and plating choices for magnets we custom-machine.
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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