An ever more large variety of objects, products and components are made in aluminium or in its primary and secondary alloys. Its features make this metal essential both in the construction of many common objects (bicycles, windows, coffee makers, etc.) and for technologically advanced and complex components (trains, cars, computers, aircraft and still more). As it does not exist in nature, aluminium has been recycled since 1900. Particularly in today’s circular economy it covers an important role. Das recycling of aluminium, whether it be profile or casing, means dividing it from all the components with which it is assembled. One of the most common examples is the recycling of aluminium window frames which include screws, glass, handles and plastic with thermal functions.