Rolleri Protective Film Tensioner For Urethane Bending Roll

Rolfilm is one of the most common systems to prevent bending marks on the sheet metal. It’s a protective foil that is placed between the die and the sheetmetal Rolleri offers different thicknesses based on the material: min. thickness is 0.4 mm (0.02″) max. thikness di 2.0 mm (0.08″). ROLFILM comes in 3 different widths: 100, 150 e 200 mm (3.94″,5.90″ e 7.87″), so it’s possible to use all the available surface by translating on the X axis. for example, with a die of 200 mm opening, we have 15/20 position on the same segment of rolfilm. 4 different lengths available: 3,10,20,30 meters. Tensioner CT is a really helpful optional in order to better use Rolfilm.Each Tensioner (works in pair) is placed at one end of the die by a clamp. The foil is placed on the upper part and the tension is calibrated by the 2 CT tensioner Rolfilm has high elastic property and compressive strenght, so yopu will need very little modification to the CNC program. Our our advice is to combine the use of rolfilm with increased radius dies.