... technologies,Series GJT-B conveyor belt metal detector are the latest metal detecting technologies. With stable performance, ... Working principle of GJT-B conveyor belt metal detector: When the metal gets into the sensor electromagnetic field, ... 15mm, including iron, aluminum, copper, stainless steel, manganese steel, chrome steel, etc.105GJT-6B65040125GJT-8B80050160GJT-10B100050190GJT-12B120050255GJT ...