Sintered NdFeB Magnets

Sintered NdFeB Magnets

If you are want to find sintered NdFeB magnets manufacturers and suppliers in China, Wuxi Jinwei is always at your service. Welcome to import NdFeB magnets from our factory.
Product description

Sintered NdFeB magnets also called sintered neodymium iron boron magnets, are those permanent magnetic materials that based on a Nd-Fe-B tetragonal crystal structure, and they are manufactured through a powder metallurgy (PM) process. They contain three basic elements neodymium, iron and boron. The neodymium element can be substituted by a portion of other rare earth elements (REEs) including praseodymium (Pr), dysprosium (Dy), terbium (Tb), cerium (Ce), etc. The iron element can be substituted by a portion of cobalt (Co) element to increase the magnets’ Curie temperature (Tc), thermal stability and corrosion resistance. In order to control the microstructure and the microchemistry so as to meet required performance, it also adds a small portion of other metal elements including aluminium (Al), copper (Cu), niobium (Nb), gallium (Ga), etc.

Sintered NdFeB magnets are widely applied in direct current (DC) motors, servo motors, stepper/stepping motors, synchronous motors, linear motors, voice coil motors (VCMs), wind turbines and generators, magnetic resonance imaging (MRI), electric power steering (EPS), magnetic separation, etc.


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Sintered NdFeB Magnets’Grades and Their Magnetic Properties

GradeBrHcbHcj(BH)maxTw
kGsTkOekA/mkOekA/mMGOekJ/m3ºC
N5214.2-14.81.42-1.48≥10.5≥836≥11≥87650-53398-422≤80
N5013.9-14.41.39-1.44≥10.8≥859≥12≥95548-51382-406
N4813.6-14.11.36-1.41≥11.6≥92346-49366-390
N4513.2-13.71.32-1.37≥11.6≥92343-46342-366
N4212.8-13.31.28-1.33≥11.4≥90740-43318-342
N4012.4-12.91.24-1.29≥11.4≥90738-41302-326
N3812.1-12.61.21-1.26≥11.2≥89136-39286-310
N3511.7-12.21.17-1.22≥10.8≥85933-36263-286
N3311.3-11.81.13-1.18≥10.5≥83631-34247-271
N3010.8-11.31.08-1.13≥10.0≥79628-31223-247
N50M13.9-14.41.39-1.44≥13.0≥1035≥13≥103548-51382-406≤100
N48M13.6-14.11.36-1.41≥12.8≥1019≥14≥111446-49366-390
N45M13.2-13.71.32-1.37≥12.5≥99543-46342-366
N42M12.8-13.31.28-1.33≥12.0≥95540-43318-342
N40M12.4-12.91.24-1.29≥11.6≥92338-41302-326
N38M12.1-12.61.21-1.26≥11.3≥89936-39286-310
N35M11.7-12.21.17-1.22≥10.9≥86733-36263-286
N33M11.3-11.81.13-1.18≥10.5≥83631-34247-271
N30M10.8-11.31.08-1.13≥10.0≥79628-31223-247
N50H13.9-14.41.39-1.44≥13.0≥1035≥16≥127348-51382-406≤120
N48H13.6-14.11.36-1.41≥12.8≥1019≥17≥135346-49366-390
N45H13.2-13.71.32-1.37≥12.5≥99543-46342-366
N42H12.8-13.31.28-1.33≥12.0≥95540-43318-342
N40H12.4-12.91.24-1.29≥11.6≥92338-41302-326
N38H12.1-12.61.21-1.26≥11.3≥89936-39286-310
N35H11.7-12.21.17-1.22≥10.9≥86733-36263-286
N33H11.3-11.81.13-1.18≥10.5≥83631-34247-271
N30H10.8-11.31.08-1.13≥10.0≥79628-31223-247
N48SH13.6-14.11.36-1.41≥12.8≥1019≥20≥159246-49366-390≤150
N45SH13.2-13.71.32-1.37≥12.5≥99543-46342-366
N42SH12.8-13.31.28-1.33≥12.0≥95540-43318-342
N40SH12.4-12.91.24-1.29≥11.6≥92338-41302-326
N38SH12.1-12.61.21-1.26≥11.3≥89936-39286-310
N35SH11.7-12.21.17-1.22≥10.9≥86733-36263-286
N33SH11.3-11.81.13-1.18≥10.5≥83631-34247-271
N30SH10.8-11.31.08-1.13≥10.0≥79628-31223-247
N42UH12.8-13.31.28-1.33≥12.2≥971≥25≥199040-43318-342≤180
N40UH12.4-12.91.24-1.29≥11.8≥93938-41302-326
N38UH12.1-12.61.21-1.26≥11.5≥91536-39286-310
N35UH11.7-12.21.17-1.22≥11.1≥88333-36263-286
N33UH11.3-11.81.13-1.18≥10.7≥85131-34247-271
N30UH10.8-11.31.08-1.13≥10.2≥81228-31223-247
N40EH12.4-12.91.24-1.29≥11.8≥939≥30≥238838-41302-326≤200
N38EH12.1-12.61.21-1.26≥11.5≥91536-39286-310
N35EH11.7-12.21.17-1.22≥11.1≥88333-36263-286
N33EH11.3-11.81.13-1.18≥10.7≥85131-34247-271
N30EH10.8-11.31.08-1.13≥10.2≥81228-31223-247
N35AH11.7-12.21.17-1.22≥11.1≥883≥35≥278633-36263-286≤230
N33AH11.3-11.81.13-1.18≥10.7≥85131-34247-271
N30AH10.8-11.31.08-1.13≥10.2≥81228-31223-247
N28AH10.4-10.91.04-1.09≥9.8≥78026-29207-231


Sintered NdFeB Magnets’Shapes, Magnetization Direction and Size Range

Direction of Magnetization


Sintered NdFeB Magnets’Coating Types

Surface Treatment Technology


Established in 1970, Wuxi Jinwei is one of the leading sintered ndfeb magnets manufacturers and suppliers in China. Welcome to buy or wholesale the high quality and customized products made in China from our factory which is equipped with advanced equipment and technology.
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