Polyurethane tensioned screen surfaces are used for screening abrasive materials that tend to clog screens. They are made of anti-abrasive materials in hardness from 55 to 90 Shore, depending on the material to be screened. Their reinforcement consists of steel ropes and transverse steel reinforcement as supporting elements in the construction of these screens. They are suitable as a direct replacement of metal screens with a fold without any additional adjustments of the screening machine.