Block magnet high Br, Hcj & (BH)max, Block & any size, N30-N45, 33M-45M, 30H-42H, 30SH-40SH, 28UH-35UH, 28EH-33EH. Block magnetAt present time, Sintered NdFeB is one of the strongest magnet materials available. It contributes to the development of many small and flat motors used in the high-tech industry. It is high residual induction (Br), high intrinsic Coercive force (Hcj) and high Energy ...