API® SH is a fully automated self-propelled trash rack cleaner for horizontal grids. It is designed to guide the material attracted by the grids downstream into the intake facilities of hydroelectric or collection systems placed in opposition to the main flow, freeing them and allowing the flow to be maintained to pumps and turbines. The cleaning action is carried out by the vertical rake which, leaning against the grill and moving downstream, guides the solids retained up to a point beyond the front. Each time a cleaning cycle is completed, the machine goes back up to stand by or to start another round. The horizontal trash rack cleaner moves on two tracks, with the movement powered by an electric motor.