... 28EH-38EH200°C (392°F)28AH-35AH220°C (428°F)Magnet ShapeDisc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, ... more. Customized shapes for Huge NdFeB Block Magnets are available.Magnet CoatingNi-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, ... sensors, microphones, wind turbines, wind generators, VCMs in hard disk drives, printer, switchboard, loudspeakers, magnetic separation, magnetic hooks, ...