Neodymium iron boron magnets, N52 grade
is the largest energy products, BH max reach to 53MGOe. It's widely
used in motor, sensor, clean up tool, sound device, aerospace, magnetic
and wind energy etc. N52 big block, the common size include
50x50x30mm, 50x50x25mm, 50x50x20mm, 50.8x50.8x12.7mm, 46x46x22mm,
45x45x20mm and 50.8x25.4x12.7mm.