Leveling machine, also known as straightening or flattening machine, is placed between the material rack (or cutting and welding machine) and feeding machine for leveling and feeding coils. It is a commonly used equipment in sheet material processing. The shaping of the leveling machine mainly depends on the thickness, material, and requirements of the material to be leveled. Thicker materials require higher structural rigidity, fewer rolls, larger roll diameters, and higher power; the opposite is also true.