A cab for earth-moving machines

A cab for earth-moving machines having a centre of rotation (C) and an operating radius (R) corresponding to the maximum dimensions of the cab during the rotation of the machine, comprising a closed structure (7) having at least an opening (8), and at least a door (9) hinged to the structure (7) in correspondence with the opening (8), movable from a closed position to an open position, and comprising at least a first (14) and a second wing (15) mutually connected in bellows-like fashion and such that, in the open position, the distance of all points of the door (9) from the centre of rotation (C) is lesser than the operating radius (R). The cab can further comprise at least a guide (20) obtained in proximity to the edge of the opening (8), and at least a guide element (21) integral with the door (9) and slidingly engaged to the guide (20) to guide the movements of the door (9).