Rotary shaft for processing foodstuffs, industrial device comprising such a rotary shaft, a method of manufacturing such a rotary shaft and a method for processing foodstuffs

摘要

The invention relates to a rotary shaft for processing foodstuffs, the rotary shaft has a rotation axis and the rotary shaft comprises at least one tool which extends along the rotation axis. The tool has an airfoil profile such that the tool comprises a leading edge, a trailing edge, an upper surface and a lower surface. Further, the tool comprises at least one fluid channel between the mean camber line of the airfoil profile and the upper surface of the tool.