function of tester
A torque tester[1] is required during the packaging design process.[2] It could be used as a destructive tester to identify if there is any material weakness of the packaging during the screwing process. It also allows to define the torque tolerances of the capping machine. The lower torque limit is considered as the minimum pressure of the cap to avoid any leak of the product. This torque test needs to be combined with a leak test with secure seal analyzer. The higher torque limit is the maximum torque the customer can apply to open or close the product’s cap.