The press brake, a fundamental tool of the bending machine, positions the metal plate on the bottom die of the worktable, then uses a punch to bend it. The power system drives the movement of the slider, causing the punch to descend, enabling the bending of metal sheets or pipes to any desired angle.

A CNC bending machine, or Computer Numerical Control bending machine, utilizes a numerical control press brake to bend sheet metal. These machines are capable of bending sheet metal into various shapes and sizes, ranging from small components to large industrial parts.