the invention relates to a compacting device for compacting empty containers , in particular beverage bottles or cans of plastic or metal , comprising at least one rotatable roller , which is designed for compressing and perforating empty containers , wherein the roller has a roller base body and at least one pin element protruding from the roller base body , wherein the pin element is formed as a hollow pin , at least the end face of the hollow pin that is facing away from the roller base body is open .