Full definition
Equipment installed over the conveyor belt that detects ferrous and non-ferrous metallic objects (including stainless steel) trapped in bulk material. Triggers an alarm and stops the conveyor before the object reaches downstream equipment (crushers, mills, presses). Technology: electromagnetic induction coils in a 200-800 mm tunnel aperture. Sensitivity: Fe spheres of 3-5 mm. Brands: Eriez, Calamit, Goudsmit. Complies with IEC 62849.