Abstract: A magnetic drum for magnetic separation of iron particles from iron sands, which includes an outer body or hollow cylindrical casing; two side covers, one for each end of the casing; and an inner body or core which includes sheet-metal discs, evenly distributed and connected to a central shaft, and at least 18 straight magnetic plates which are positioned radially on the outer surface of the core and which are supported by the discs. The invention also describes the magnetic separation system for the magnetic separation of iron particles from iron sands, which includes a magnetic drum such as described above, two boxes with the corresponding support and rotation bearings thereof, positioned at either end of the drum, two gear motors with the corresponding shafts and cog belts, two metal delivery boxes; an electrical panel having variable frequency drives, a loading bin and a flow regulator.