While the ability of a roller leveler to remove strip shape defects in any given material is limited by the leveler's work roll size, roll centers, structural rigidity, and horsepower, Cassette Levelers have the distinctive ability to operate with interchangeable leveler cassettes, with each cassette containing a different roll size for leveling a specific gauge and product range. The Cassette Leveler frame is designed to operate with 4-hi, 5-hi, and 6-hi light and heavy gauge cassettes, with the structural rigidity and driving power to process the heaviest and toughest coils.