How Sheet Rolling Machines Work

Three-Roll Bending Machine: This is the most common type and consists of two lower rolls and one upper roll. The metal sheet is placed between the upper and lower rolls, and as the upper roll moves down, the sheet bends. The side rolls help to control the curvature of the sheet, ensuring precise bending.

Four-Roll Bending Machine: In this type, two of the rolls are positioned on the top and bottom, while the other two are on the sides. This configuration allows for more precise control of the rolling process, as the side rolls can be adjusted to control the bending angle and radius. Four-roll machines are often used for more complex bending operations.