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Custom Shape Strong N52 Neodymium Magnets


General Introduction of N52 Neodymium Magnets

Super magnet, N52 Neodymium magnets is the choice of many designers. N52 neodymium magnets was the strongest neodymium magnet available for commercial use up until recently.

N52 neodymium magnets grade is still a great choice for super magnets. It has the advantages of high magnetic remanence, coercive force and magnetic energy product. Therefore recommend for our customers and used for a few years. It’s maximum energy (Bh max) is usually over 400 KJ/m3 or 50-53 MGOe.

Neodymium magnets mainly composed of neodymium iron and boron, is the third generation of the rare-earth permanent magnets.Sintered Ndfeb is the strongest permanent magnets in the world up to date. It can be manufactured into all kinds of shapes and sizes. It is widely used in electric appliance, medical apparatus, office automation appliance, toys, magnetic finery, etc.

Size Limitations Of Neodymium Magnets

ShapsOuter Diameter/LengthInner diameter/WidthThickness
Maximum220.00mm 50.00mm
Minimum0.30mm 0.50mm
Segment, Arc and other irregular shapes can be made according to customer’s samples or drawing.

Also note that neodymium magnets are made from a hard, brittle material. Many shapes that would be easy to manufacture in a steel or aluminum part are not necessarily feasible in a neodymium magnet. Complex shapes or shapes with thin cross sections might not be possible.

customized various sizes / shape neodymium magnet

Neodymium Arc Magnets
Arc shaped magnets
Neodymium Disc Magnets
Disc shaped magnets
neodymium Cylinder & Rod Magnets
Rod shaped magnets
Neodymium Block magnets
Block shaped magnets
Neodymium Sphere & ball Magnets
Sphere shaped magnets
Neodymium Ring Magnets
Ring shaped magnets

Custom Shape Strong N52 Neodymium Magnets

Thermal characteristics, Grade: N35, N38, N40, N42, N45, N48, N50, N52

N Grade=80°C M Grade=100°C H Grade=120°C SH Grade=150°C , UH Grade=180°C, EH Grade=200°C AH Grade= 220°C );

Coefficient of thermal expansion Maximum operating temperature
Curie temperature
Coefficient of thermal conductivity
%/°C °C (°F) °C (°F) kcal/m-h-°C
N -0.12 176°F (80°C) 590°F (310°C) 7.7
NM -0.12 212°F (100°C) 644°F (340°C) 7.7
NH -0.11 248°F (120°C) 644°F (340°C) 7.7
NSH -0.10 302°F (150°C) 644°F (340°C) 7.7
NUH -0.10 356°F (180°C) 662°F (350°C) 7.7
NEH -0.10 392°F (200°C) 662°F (350°C) 7.7

Neodymium Magent Plating Characteristics:

PcturesArc MagnetsRod MagnetsRing MagnetsBall MagnetsBlock Magnets
Salt spray test12 hours24 hours36 hours24 hours48 hours48 hours