... system,PV tracker,SPZTF-S-18 mechanical life: 30yea Automatic dual-axis solar tracker ,solar tracking system,PV trackersolar tracker,solar actuator ... accuracy: ≤±0.05°/s Anti-wind speed: 34m/sHorizontal rotational angle: 360° Pitch angle: 180°Mechanical life: 30years Automatic dual-axis solar tracker ...