Gold Member Since 2014
TSL Magnetic Material Co., Ltd.

Permanent Magnet, NdFeB Magnet, Neodymium Magnet manufacturer / supplier in China, offering High Performance Sintered Rectangle NdFeB Permanent Magnet, High Performance Sintered NdFeB/Neodymium Disc Magnet, High Performance Ring Sintered NdFeB Rare Earth Magnet and so on.

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Supplier Homepage Product Block/Plate/Bar Magnets High Performance Sintered Rectangle NdFeB Permanent Magnet

High Performance Sintered Rectangle NdFeB Permanent Magnet

FOB Price: US $0.01 / Piece
Min. Order: 10 Pieces
Min. Order FOB Price
10 Pieces US $0.01/ Piece
Get Latest Price
Production Capacity: 1000 Ton/Year
Transport Package: Packed in Plastic Then Put in Cartons
Payment Terms: T/T, Western Union, Paypal

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Basic Info
  • Model NO.: N50
  • Shape: Block
  • Grade: N50
  • Density: 7.5g/cm3
  • Max Temp: 80
  • Specification: rosh
  • HS Code: 7202991900
  • Application: Speaker Magnet, Industrial Magnet, Motor Magnet
  • Coating: Nickel
  • Type: Permanent
  • Material: Neodymium-Iron-Boron
  • Trademark: TSL
  • Origin: China
Product Description
MaterialGrade  Size PlateMagnetizeStrength
NdfebN4220*10*5mmNi-cu-Nithrough 5mm5.4kg



NdFeB Permanent  Magnet are composed of Neodymium, Iron and Boron. Density of Neodymium magnets is. 27Lb/in3 (7.5g/cm3).

NdFeB Permanent  Magnet are manufactured in a metallurgy process through alloying, crushing, powdering, pressing w/magnetic orientation, sintering, then cutting, coating, inspecting and packing before shipment.

Ndfeb Magnet offer the highest (BH)max and high Hci(BH)max, the Maximum Energy Product, of Neodymium magnets is highest of any kind of permanent magnets today in the world. (BH)max at different grades of Neodymium magnets is 27 to 52 MGOe. Neodymium magnets have extremely resistance to demagnetization with Hci, Intrisic coercive force, over 12, 000 Oe. Because of very high (BH)max and Hci, Neo magnets could be used as a reversible medium for large amount of energy transformation in miniaturized application where a strong magnetic demagnetization field exists, such as computer hard drive. Disk and rectangle shapes for customers' immediate needs and accept special orders for custom Neodymium magnets.

NdFeB Permanent  Magnet are most powerful of any kind of magnetic materialsBr of Neodymium magnets are much more than 11, 000 Gauss. Therefore, Neodymium magnets have strong holding strength on metal surface and could be used as component for holding, separating, etc. Neodymium magnets must be carefully handled to avoid personal injury and material damage due to its extremely magnetic strength and brittle property.

NdFeB Permanent  Magnet are sensitive to temperature change and even lose magnet properties at high temperatureNeodymium magnets lose -0.09 ~ -0.13% of Br/° C and can work stably under 80° C for low Hci Neodymium magnets and 150° C for high Hci Neodymium magnets.
Neodymium magnets are corrupted in humid environment Surface protection is strongly recommended, such as plating, varnishing and encapsulating.

NdFeB Permanent  Magnet are hard and brittle Neodymium magnets can be abrasively machined with coolant served to absorb heating and dust. Without coolant, rare earth magnets could crack and chip by the heat produced during high speed cutting or grinding, and the sparks contain the easily oxidized grinding dust that could cause fire!

Magnetic Property of NdFeB Permanent  Magnet

Grade
Remanence
Br
Coercive Force
Hcb
Intrinsic Coercive force
Hci
Max Energy Product
(BH) max
Max Working Temp.
KG
T
KOe
KA/m
KOe
KA/m
MGOe
KJ/m
ºC
°F
N35
11.4-11.8
1.18-1.28
≥ 10.8
≥ 836
≥ 12
≥ 955
33-36
263-287
80
176
N38
11.8-12.3
1.18-1.28
≥ 10.8
≥ 860
≥ 12
≥ 955
36-39
287-310
80
176
N40
12.7-12.9
1.27-1.29
≥ 11.0
≥ 876
≥ 12
≥ 955
38-41
303-326
80
176
N42
12.9-13.3
1.29-1.33
≥ 10.5
≥ 836
≥ 12
≥ 955
40-43
318-342
80
176
N45
13.3-13.8
1.33-1.38
≥ 9.5
≥ 756
≥ 12
≥ 955
43-46
342-366
80
176
N48
13.8-14.2
1.38-1.42
≥ 10.5
≥ 835
≥ 12
≥ 955
46-49
366-390
80
176
N50
13.8-14.5
1.38-1.45
≥ 10.5
≥ 835
≥ 11
≥ 955
47-51
374-406
80
176
N52
14.3-14.8
1.43-1.48
≥ 10.8
≥ 860
≥ 11
≥ 876
50-53
398-422
80
176
33M
11.4-11.8
1.14-1.18
≥ 10.3
≥ 820
≥ 14
≥ 1114
31-33
247-263
100
212
35M
11.8-12.3
1.18-1.23
≥ 10.8
≥ 860
≥ 14
≥ 1114
33-36
263-287
100
212
38M
12.3-12.7
1.23-1.27
≥ 11.0
≥ 876
≥ 14
≥ 1114
38-41
303-326
100
212
40M
12.7-12.9
1.27-1.29
≥ 11.4
≥ 907
≥ 14
≥ 1114
38-41
303-326
100
212
42M
12.8-13.2
1.28-1.32
≥ 11.6
≥ 923
≥ 14
≥1114
40-43
318-342
100
212
45M
13.2-13.8
1.32-1.38
≥ 11.8
≥ 939
≥ 14
≥ 1114
43-46
342-366
100
212
48M
13.6-14.0
1.36-1.40
≥ 11.8
≥ 939
≥ 14
≥ 1114
46-49
366-390
100
212
50M
14.0-14.5
1.40-1.45
≥ 13.0
≥ 1033
≥ 14
≥ 1114
48-51
382-406
100
212
30H
10.8-11.4
1.08-1.14
≥ 10.2
≥ 812
≥ 17
≥ 1353
28-31
223-247
120
248
33H
11.4-11.8
1.14-1.18
≥ 10.6
≥ 844
≥ 17
≥ 1353
31-33
247-263
120
248
35H
11.8-12.3
1.18-1.28
≥ 11.0
≥ 876
≥ 17
≥ 1353
33-36
263-287
120
248
38H
12.3-12.7
1.23-1.27
≥ 11.2
≥ 890
≥ 17
≥ 1353
36-39
287-310
120
248
40H
12.7-12.9
1.27-1.29
≥ 11.5
≥ 915
≥ 17
≥ 1353
38-41
303-326
120
248
42H
12.8-13.2
1.28-1.32
≥ 12.0
≥ 955
≥ 17
≥ 1353
40-43
318-342
120
248
45H
13.2-13.5
1.32-1.38
≥ 12.0
≥ 955
≥ 17
≥ 1353
42-46
335-366
120
248
46H
13.3-13.8
1.33-1.38
≥ 12.2
≥ 972
≥ 16
≥ 1274
44-47
350-374
120
248
48H
13.6-14.3
1.36-1.43
≥ 12.5
≥ 995
≥ 16
≥ 1274
46-49
366-390
120
248
30SH
10.8-11.4
1.081.14
≥ 10.0
≥ 796
≥ 20
≥ 1672
28-31
223-247
150
302
33SH
11.4-11.8
1.14-1.18
≥ 10.5
≥ 836
≥ 20
≥ 1672
31-34
247-276
150
302
35SH
11.8-12.3
1.18-1.23
≥ 11.0
≥ 876
≥ 20
≥ 1672
33-36
263-287
150
302
38SH
12.3-12.7
1.23-1.27
≥ 11.4
≥ 907
≥ 20
≥ 1972
36-39
287-310
150
302
40SH
12.5-12.8
1.25-1.28
≥ 11.8
≥ 939
≥ 20
≥ 1972
38-41
302-326
150
302
42SH
12.8-13.2
1.28-1.32
≥ 11.8
≥ 939
≥ 20
≥ 1672
40-43
320-343
150
302
45SH
13.2-13.8
1.32-1.38
≥ 12.6
≥ 1003
≥ 20
≥ 1592
43-46
342-366
150
302
30UH
10.8-11.4
1.08-1.14
≥ 10.2
≥ 812
≥ 25
≥ 1990
28-31
223-247
180
356
33UH
11.3-11.7
1.13-1.17
≥ 10.7
≥ 852
≥ 25
≥ 1990
31-33
247-263
180
356
35UH
11.7-12.1
1.17-1.21
≥ 10.7
≥ 852
≥ 25
≥ 1990
33-36
263-287
180
356
38UH
12.1-12.5
1.21-1.25
≥ 11.4
≥ 907
≥ 25
≥ 1990
36-39
287-310
180
356
40UH
12.5-12.8
1.25-1.28
≥ 11.4
≥ 907
≥ 25
≥ 1990
38-41
302-326
180
356
28EH
10.5-10.8
1.05-1.08
≥ 9.5
≥ 756
≥ 30
≥ 2388
26-29
207-231
200
392
30EH
10.8-11.4
1.08-1.14
≥ 9.5
≥ 756
≥ 30
≥ 2388
28-31
223-241
200
292
33EH
11.3-11.7
1.13-1.17
≥ 10.2
≥ 812
≥ 30
≥ 2388
31-33
247-263
200
392
35EH
11.7-12.1
1.17-1.21
≥ 10.2
≥ 812
≥ 30
≥ 2388
33-36
263-287
200
392
38EH
12.1-12.5
1.21-1.25
≥ 11.4
≥ 907
≥ 30
≥ 2388
36-39
287-310
200
392
30AH
10.8-11.3
1.08-1.13
≥ 10.2
≥ 812
≥ 35
≥ 2785
28-32
223-255
220
428
33AH
11.2-11.7
1.12-1.17
≥ 10.2
≥ 812
≥ 35
≥ 2785
31-34
247-271
220
428


Ring NdFeb Magnet Outer Radius*Inner Radius*Thickness*
Maximum150.0 mm95.0 mm50.0 mm
Minimum0.8 mm0.15 mm0.2 mm

Disc Neodymium Magnet Diameter*Thickness*
Maximum150.0 mm75.0 mm
Minimum0.4 mm0.25 mm

Block Neodymium Magnet Length*Width*Thickness*Diagonal*
Maximum200.0 mm95.0 mm50.0 mm150.0 mm
Minimum3.080 mm1.20 mm0.25 mm0.50 mm

Arc-segment NdFeb Magnet Outer Radius*Inner Radius*Thickness*Degree*
Maximum75 mm65 mm50.00 mm150
Minimum1.9 mm
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