Pneumatic single grain seeder

摘要

The seeder has a sorting housing with side walls spaced at a distance from each other. Pressure difference set in perforations (7) is adjusted for removing seed grains from a covering device in an inner space of a drum. The covering device is formed as rotatably mounted rollers (15), and interrupts the perforations. An end of an exhaust duct with a branch opening to a drum surface is approximately arranged in a region of the covering device and perforation series (6). The rollers are formed in an outer rotating region in a flexible and/or resilient manner.