The XCMG XR550D rotary drilling rig is engineered for large-scale foundation projects, offering a maximum drilling diameter of 3,500 mm and a depth of up to 132 meters. Powered by a 447 kW Cummins QSX15-C600 engine, it delivers robust performance. The rig features an H-style hydraulic retractable crawler chassis with large-diameter slewing bearings, ensuring exceptional stability and ease of transport. Its advanced hydraulic system utilizes negative flow control to optimize efficiency and fully leverage engine power. The XR550D is equipped with a single-rope main winch design, significantly extending the lifespan of the steel wire rope and reducing operational costs. Additionally, it offers both normal and entering-rock modes, enhancing versatility across various soil and rock conditions




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