Abstract: The invention relates to a sorting element for a sorting device. The sorting element comprises a substrate from which a multitude of fingers project. The fingers are arranged on the substrate along a first helical line.

Abstract: The invention relates to a device for sorting particulate materials of different grain size that can be part of a construction machine or digger's scoop. The device for sorting has a plurality of helical rollers, each exhibiting at least one helix, wherein each helical roller rotates about a rotary axis of its own, at least two adjacent helical rollers exhibit the same direction of rotation, and the rotary axes of at least three helical rollers are not arranged in a common plane. At least some of the helical rollers are held and rotatably mounted exclusively at one end.

Abstract: A screen device for sorting screening material into one or more fine grain fractions and one or more oversize grain fractions. The screen device includes a frame and a roller screen including screen rollers which are arranged, such that they can be rotary-driven about a roller axis each, next to each other and which are supported on the frame and which each comprise a roller body and one or more screen structures which protrude radially relative to the roller body. There is a fine grain screen gap between the roller bodies of respectively adjacent screen rollers, through which a fine grain fraction falls, while an oversize grain fraction is conveyed on the roller screen in the axial direction of the rollers when the screen rollers are rotary-driven.

Abstract: The invention relates to a sorting element for a sorting device. The sorting element comprises a substrate from which a multitude of fingers project. The fingers are arranged on the substrate along a first helical line.