Mobile gantry CNC 4-axis machining centre, designed for drilling, milling, threading and cutting at any angle from -90° to +90° on bars or pieces in aluminium, light alloys in general and steel. The mobile part of the machine mainly consists of a gantry equipped with precision motorization rack. The 9 kW electrospindle with HSK- 63F tool connection is able to perform even heavy-duty machining with excellent, rapid and accurate results. A fixed tool magazine with 14 places is installed on the left-hand side of the machine. It can be fitted with a second 14-place magazine on the other side of the machine or replaced by a single 14-place motorized magazine which, with its own NC axis, follows the mobile gantry in the two work areas, reducing the required number of tools and tool holders and considerably optimising programming. The machine can be used in double mode, a work method that reduces machine stop times to a minimum as it allows workpiece change time (loading/unloading) to be run "while the machine is operating". Furthermore, different workpieces can be machined between the two work areas. The machine is equipped with a cabin covering of the gantry that not only protects the operator, but also reduces the noise impact.