Front or rear carried mower with a central pendulum that allows at the mower to adapt to any working condition. The system is supported by a series of active springs t for the best work in hilly and mountainous lands. The transmission takes place through a central group multiplier in an oil bath with a sense of universal input rotation, so whatever manner PTO input, the output will always be in the correct direction for the optimal work operation of the machine. The middle attack can be equipped with hydraulic movement. This device allows the mower to translate left and right sides of 35 cm. The ALPE mower has a chance of quick swath change through a system patented by Marangon. The mower can go from double swath to central swath simply by changing the direction of rotation of the drum by turning the lever (for ALPS 235 and 260).