Torus | Industrial Physics
Torus | Industrial Physics

Can Wall Thickness: Importance in Quality Control

This video, created in collaboration with Torus, explains the significance of measuring can wall thickness as part of the Quality Control process in can manufacturing.


The Tool Pack and Bodymaker alignment determine the can's wall thickness during the forming process. After the can is formed in the Bodymaker, it will have two distinct wall thicknesses: the Top Wall Thickness (at the very top of the can) and the Mid-Wall Thickness (running the length of the can below the top wall).


Can wall thickness is measured in Quality Control for several reasons. The Mid Wall is kept thin to reduce metal usage, which helps save on material costs. Meanwhile, the Top Wall is made thicker to allow the neck of the can to be formed properly.


If the Top Wall is too thick, it can cause jams in the Necker. Conversely, if the Top Wall is too thin, the neck of the can may develop pleats, where the metal folds over itself, leading to defects.