... used for the roughing, scavenging and concentrating separation of fine-grained weakly-magnetic ore, which can ... effectively perform the separation of manganese ore, goethite, hematite, siderite, chromite, ... , biotite, epidote, serpentine and non-metallic ore. Main technical parameters ModelRollerspecification(mm) Magnetic field strength(GS)Feedparticle(mm)Processing ...