GJT-1F Series Metal Detector|conveyor metal detector is developed for metal detection in magnetic materials belt conveying system (such as in ferric and non-ferric mines, ironworks, sintering plants, etc.) It is able to suppress “material effect” generated by magnetic ores that have the grade below 70%. When any harmful metal contained by the material passes through the sensor, the metal detector will give an alarm and control signal simultaneously. The sensor is a flat construction that is removable on end and can be mounted easily without cutting the rubber belt. This device also applies to detect metals in non-magnetic materials conveying system.