Chicken and duck gizzard oiling machines are highly specialized and essential equipment in slaughterhouses. Their main function is to efficiently and thoroughly remove the yellow keratinous layer (commonly known as "yellow skin" or "oil skin") from the inner wall of the gizzard (gizzard), as well as the attached fat and contents. These machines are typically integrated into a standardized gizzard processing flow: Gizzard Collection → Dissection → Preliminary Impurity Removal → Oiling Machine → F