... used in river, sea and so on 12-15 digging depth river dualmagnetic operator iron selection equipmentTechnical Parameters Equipted hoppers:95 ... -100Floating size: 24*2.0Digging depth:12m-15mMagnatic operator: 750(diameter,mm)*2600(length,mm)Output ... in river, lake, offshore, hill and mine. 12-15M Digging Depth Iron Sand Selection Machine