Solar tracker including an azimuth rotation mechanism

The invention relates to a solar tracker including an azimuth rotation mechanism disposed at the upper end of the pedestal (1), said mechanism comprising: a fixed base (10); a hollow cover (3) supporting the bearing structure, disposed on the fixed base (10); a rotary mechanical element (17) disposed between the cover (3) and the fixed base (10); and two hydraulic cylinders (6, 6') disposed at different heights in relation to the vertical axis of the cover (3) and secured at one end to the cover (3) and secured at the other end by a single fixed shaft (7) secured to the fixed base (10) such that, when the pistons of the cylinders (6, 6') are actuated, they drive the rotation of the cover (3) to which the cylinders (6, 6') are secured, rotating the cylinders (6, 6') in relation to a single shaft (7) which is secured to the base (10).