Abstract: A real-time monitoring system to monitor the wearing in the thickness of the ribs (5) of a grate (1) of a SAG mill (9) due to the abrasive action of the ore pulp residing inside the mill and due to the action of the grinding elements during the operation, and which in certain cases also generates obstruction of the slots (4) due to the jamming of said grinding elements inside the slots (4) while the mill is running, and said grate (1) has a screening surface (2) that includes a pulp lifter (3) and an external surface (7) that is not exposed to impacts, and also includes a central trough (6) where the supporting elements fit and which allow securing the grate inside the mill through fitting bolts (12), wherein said system includes: a sensor (16) located on the external surface (7), and said sensor (16) is connected to a sensor adaptor unit (17); a wireless transmitter (18) connected to said sensor (16), and said transmitter transmits the signal from the sensor (16); a wireless receiver (20) receiving the signa

Abstract: A real-time monitoring system to monitor the wearing in the thickness of the ribs of a grate of a SAG mill. The grate can have a screening surface that includes a pulp lifter and an external surface that is not exposed to impacts, and can also include a central trough where the supporting elements fit and which allow securing the grate inside the mill through fitting bolts. The system can comprise: a sensor (accelerometer or strain gage) located on the external surface in which the sensor is connected to a sensor adaptor unit; a wireless transmitter connected to the sensor to transmit the signal from the sensor; a wireless receiver for receiving the signal from the wireless transmitter; and a signal reader connected to the wireless receiver which processes the signals received from the sensor.