INO designed, in collaboration with Liberty Spring, an alternator pulley inspection system to reach zero-defect. The manually loaded conveyor moves pulleys through an inspection tunnel where they are inspected from every angle. At the end of the conveyor belt, a robot gathers the pulleys, completes the inspection, and sorts them based on nonconformities. Over the past few years, they have seen a significant gain in terms of product quality and therefore, a reduction in customer complaints. They have also taken advantage of a reduction in false discards and labour costs, as well as a recording of production characteristics in a database accessible through statistical analysis tools.