The in-line can leakage tester transfers empty cans into the hermetic test chamber where both can interior and exterior will be insulated. Empty cans will then be filled with compressed gases, with the inner pressure reaching 8-12 bars, while exterior pressure remains normal. Any small leaks that lead to pressure changes in the hermetic test chamber will be detected using a pressure sensor. If the pressure change exceeds a designated value, the empty can will be rejected as defective. In doing so, we are able to control can quality and performance, ensuring only those that are qualified will be sent further down the production line.