This portable yellow diesel‑driven high‑pressure screw air compressor is built for heavy‑duty field operations. Powered by diesel engine without external electricity supply, it provides stable high‑pressure compressed air to support water well drill rigs, mining, quarrying and outdoor construction projects. Rugged chassis and dust‑resistant structure enable reliable performance under harsh outdoor working conditions. It features flexible mobility, strong air output and continuous running capability, ideal matching air supply equipment for water well drilling jobs.