The magnetic separating machine isassembled on a bucket chain dredger which can lower the cost and enhance theefficiency. The dredger can dig or suck sand from 10-20m depth underwater andprocess about 80-100m3 materials per hour. If bigger bucket chain dredger isused , the capacity will reach 200m3/hr . the separation grade of iron sand ismore than 60%. JuLong iron separation platform on river or sea is designed tocooperate with bucket chain dredger, jet suction dredger or cutter suctiondredger. On the platform, 4 to 12 sets of magnetic separators work at the sametime which can process 200-800m3 material per hour.