A system for pet excrement removal, separating the excrements from the clean litter by lodging them in a separate compartment from the litter box. To do so, it is only necessary to rotate a cylinder. The system has a removable litter tray where the animal can do its physiological needs. The fact that it is removable allows for an easy sanitation, because it can be removed from the system, with or without litter, which simplifies its washing, increasing the hygiene of the litter box. The removable litter tray, previously mentioned, has a support base for entry and exit of the animal, which allows removal of the litter attached to the animal's paws, when exiting the litter box, in order to keep the surrounding environment clean.
