The machine is semi-magnetic separator drum magnetic field angle adjustable, the magnetic field intensity 1550GS-3500GS, mainly used for dry separation of iron ore beneficiation field, or fishing boat sand iron election. Models φ750 × 1500, φ750 × 1800, φ820 × 1500, φ820 × 1800, φ900 × 1800, φ1050 × 1800, etc.