The Michelin Group is a leading company in the tire production sector, specializing in the manufacturing, distribution, and sale of tires. Specifically, the Michelin Cuneo site focuses on producing semi-finished products and tires for cars and trucks. The extrusion process in Service O of the plant is a critical part of the manufacturing process, as it transforms rubber compounds into profile rubber sheets, which are later used in various tire components, such as the tread, sidewalls, and carcass. The working conditions of the extruder machines directly impact both product quality and productivity. This thesis aims to identify the causes of wear in the screws and cylinders of the extrusion system, such as aggravation of wear due to abrasion caused by foreign metal objects, or inaccuracies due to the data acquisition procedure.