Representative sampling is carried out by a slotted vessel that is swivelled through the material flow in a circular movement at a constant speed. While the slotted vessel is rotated through the material flow, a sample is removed from the material flow and collected in the slotted vessel. This sample is subsequently emptied by the movable base over the sample discharge chute. After being completely emptied, the slotted vessel swivels back into the waiting position. With this sampler as well, the waiting position lies outside the principle material flow to protect the slotted vessel from wear.
The swivel movement of the slotted vessel can be executed both via a pneumatic cylinder as well as via a three-phase motor.