Patent ID: 9375727
Filing Date: 2016-06-28
CPC Classification: B03C,F16C,Y10T

Claim Text:
1. Drum for magnetic separator comprising a cylinder (C) of ferromagnetic material closed at its ends by two flanges having central hubs provided with seats for bearings and locking clamps, said central hubs being arranged along the longitudinal axis (A-A) of said cylinder (C), a plurality of longitudinal grooves being formed on the outside of the cylinder (C) and housing permanent magnets arranged in longitudinal rows of a single polarity along a magnetic arc of about 130° to 160° with alternate N-S polarity between adjacent rows, the cylinder (C) being located within a shell (M) of non-magnetic material closed at its ends by two flanges (F) having flanged hubs (MF) provided with seats for said bearings, at least one of said flanged hubs (MF) being also provided with means for receiving from a motor the motion to drive into rotation said shell (M), wherein the length (D) of the single dipole of the magnetic circuit is in a range between 100 and 150 mm.