Ichi ndi chosindikizira chapakatikati cha rotary piritsi chomwe chimatha kupanga wosanjikiza umodzi kapena piritsi limodzi. Ndiwoyenera makamaka kupanga mapiritsi kuchokera ku viscous, corrosive and abrasive
monga ngati turret kutengera dzimbiri mankhwala omwe amatha kupanga zinthu zosiyanasiyana monga effervescent piritsi, mchere piritsi, chotsukira mbale, chlorine piritsi watercolor piritsi etc.