Background
Northwest China has abundant sunshine, and large solar farms are being built across gravel plains and hills. One farm can need tens of thousands of mounting piles — many scattered holes, usually no grid power, and wind, sand and day-night temperature swings that test the equipment.
Challenge
Solar mounting piles need many shallow holes in gravel plains or hills, typically 2–6 m deep, with frequent moves. There is no grid on site, wind and sand are heavy and temperature swings are large; blocked filters and constant moves are the main challenges.
Solution
An LG Series two-stage diesel unit delivering 22 m³/min at 19 bar to match the pile rigs, fitted with the desert filter kit; heavy-duty chassis, hard-wearing tyres and drawbar for frequent moves over gravel; grouped wear parts so filters can be changed on site.
Results
The unit followed the rig hole to hole and breathed normally in sandstorms; it supplied air for large numbers of pile holes and kept drilling on schedule.
