Remag NdFeB

Neodymium Iron Boron (NdFeB) Magnets

Sintered NdFeB (Neodymium Iron Boron) magnets belong to a group of Rare-Earth magnets and have the highest remanence (remaining magnetization after removing the external magnetic field) and coercivity (high resistance to demagnetization). They are produced via sintering technique and are either pressed isostatically in oil or axially/transversally in a pressing tool. They suffer from relatively low corrosion resistance and therefore usually require long-term or short-term surface corrosion protection according to its use in application. These magnets are produced according to customer specifications and can be found in a variety of applications including high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors and loudspeakers.

sumarium

NdFeB advantages

EXCELLENT MAGNETIC

FUNCTION/DIMENSIONS RATIO

VERY HIGH

(BH) MAX

HIGH

Br

PHYSICAL PROPERTIES

Characteristic [Unit] Remag
NdFeB
Density [g/cm3] 7,65
Elasticity Modulus [kN/mm2] 150
Bending Strength [N/mm2] 180
Compression Strength [N/mm2] 850
Hardness [HV] 550
Specific electrical resistance [μΩcm] 16
Specific heat [J/kgK] 440
Specific thermal conductivity [W/mK] 9
Curie temperature [°C] 340
Required magnetising field strength [kA/m] 2500

MAGNETIC PROPERTIES

REMAG
Typical values
Remanence Br
[T]
Corecivity HcB [kA/m] Instrinsic Corecivity
HcJ [kA/m]
Energy product (BH)max
[kJ/m3]
Temperature Coefficient – TK Br
[%/K]
Temperature Coefficient – iHc
[%/K]
Max. working temperature
[°C]
Remag 26 A 1,08 810 > 2250 220 -0,08 -0,51 210
Remag 28 A 1,13 860 > 2200 230 -0,085 -0,55 200
Remag 31 A 1,16 880 > 2000 250 -0,085 -0,57 180
Remag 26 A 1,13 860 > 2550 240 -0,08 -0,51 210
Remag 28 T 1,17 905 > 2200 255 -0,085 -0,55 200
Remag 31 T 1,21 930 > 2000 280 -0,085 -0,57 180
Remag 26 A
Remag 28 A
Remag 28 T
Remag 31 A
catalogue magneti pdf

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