These stainless steel pins serve as both capsule ejectors and segment cleaners. This is how it works: Within the capsule filling machine, the capsules are transported from station to station in special bores of the so-called capsule segments. The pins move into these segments at the end of the filling process and the capsules are pushed out. Immediately afterwards, air flows out of the slots; powder particles are ejected and extracted within the same station. Here you can read more about the platform where this solution is in use.