"Roll bending machines are equipment that uses working rolls to bend sheet material into various shapes, such as cylindrical and conical parts, and are an essential processing machine. The working principle of a roll bending machine involves the application of external forces like hydraulic and mechanical pressure, which cause the working rolls to move, bending or rolling the sheet material into the desired shape. Depending on the rotational movement and position changes of the rolls of different shapes, parts like elliptical, curved, and cylindrical pieces can be produced."