A sheet straightening machine, also known as a sheet metal straightener or leveler, is an industrial mechanical device designed to flatten and straighten metal sheets, coils, and other materials by eliminating warping, waviness, bends, and other surface deformations. This machine applies controlled pressure and stretching, typically through a series of rollers, to the metal sheets to achieve a uniform flatness and precise surface quality essential for further processing such as stamping, cutting, or bending. The straightening process improves material accuracy, reduces processing errors, enhances product quality, and boosts production efficiency in industries like metal fabrication, automotive manufacturing, and electronics.