Automatic bottle inspection machine. The machine rotates each container at high speed and then stops them abruptly, setting liquid in motion by inertia. The light transmitted through the liquid causes the moving particles to create shadows on high-resolution sensors, which enables the system to detect particles of low to high reflectivity. The light transmission-based equipment allows the inspection of particles in low to medium viscosity liquids, as well as the inspection of fill levels.

The product to be inspected coming from the feed is picked up by a conveyor belt. It is then transported by a slowly rotating conveyor belt in front of the operator. Defective bottles are rejected by the operator, those found to be acceptable at the inspection continue the movement towards the discharge.