N38 Hobby and Craft Epoxy Plating Neodymium Disc Magnets Feature:
Magnet Material: NdFeB or Neodymium Iron Boron
Magnet shape: Disc
Magnet grade: N38
Length: 15.0mm
Thickness: 4.0mm
Tolerance: +/-0.1mm (0.004”)
Coating: Epoxy plated
Operating Temp(Max).: 80℃
Direction of magnetization: Magnetized through thickness
Hobby and Craft Neodymium Disc Magnet N38 D15x4mm
Material type: Permanent
Material composition: Nd2Fe14B
Remanence (Br): 12.1– 12.5KGs
Coercive force(Hcb): 11.3KOe
Intrinsic Coercive Force( Hci ) : 12KOe
Max Energy (BH)max: 36 – 39MGOe
Max working temp. : 80℃
Curie Point (Max). : 176℉
Density : 7.4~7.6g/cm3
Other size and grade are available on request
Disc Magnet Magnetized through thickness
Axially Magnetized
Diametrically Magnetized
Multi-poles Diametrically
Applications for Neo Magnets
NdFeb magnets can be used for a wide variety of applications, for example:
Neodymium Electronics – Sensors, hard disk drives, sophisticated switches, electro-mechanical devices etc.
Auto Industry – DC motors (hybrid and electric), small high-performance motors, power steering.
Medical – MRI equipment and scanners.
Clean Tech Energy – Water flow enhancement, wind turbines.
Magnetic Separators – Used for recycling, food and liquids QC, waste removal.
Magnetic Bearing – Used for highly sensitive and delicate procedures in various heavy industries.
NdFeB magnets, sintered NdFeb magnets, sintered ndfeb, anisotropy sintered ndfeb are available in both sintered and bonded forms. Sintered NdFeB offers the highest magnetic properties (33 MGOe to 51 MGOe) while Bonded NdFeB offers lower energy properties. Although bonded magnets do not possess magnetic properties as advanced as those of sintered magnets, they can be made in shapes and sizes that are difficult to achieve with sintering. High Power Permanent Magnet NdFeB Discs, N40SH Permanent Multi-Use NdFeB Rare Earth Disc Round Magnet, N33EH High Temp Epoxy Plated Neodymium Magnetic Disc
Sintered NdFeB magnets, i.e. 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. Almost at the same time in the early 1980s, NdFeB magnets were invented by M. Sagawa’s and J. J. Croat’s teams through a powder metallurgical process and a melt-spinning technique, respectively. Due to their outstanding magnetic properties (high remanence Br: 1.1-1.5 T, middle high coercivity Hcj: 800-3000 kA/m3 and high maximum energy product (BH)max: 220-430 kJ/m3) together with competitive cost, 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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