Abstract: A frame of a cab for an agricultural machine includes a series of uprights (18), which carry its upper end a structure for supporting a roof (16). The frame includes a first series of sectional elements (18), with cross sections equal to one another, which forms the uprights (18). A second series of sectional elements (32), with cross sections equal to one another, forms the roof-supporting structure (16).

Abstract: An agricultural machine, comprising a pair of from wheels and a pair of rear wheels, rigidly connected to a main frame, a control cab mounted on the main frame and suspension means placed between the cab and the main frame. Suspension means comprise a plurality of actuators for controlling the rotation of the cab with respect to the main frame about at least two axis orthogonal to each other. An electronic control unit is provided with sensor means for detecting variations of the cab tilt angle with respect to an horizontal reference direction. The electronic control unit is programmed for controlling said actuators so as to maintain a constant orientation of the cab with respect to said reference direction.