The XQZ130 DTH (Down-The-Hole) drill rig features a drilling diameter of 90–130 mm, a drilling depth of 28 m, and drill rod specifications of Ø68/Ø76 mm; it is powered by a 242 kW engine and equipped with an air compressor delivering 19.6 m³/min airflow at 20 bar pressure, with a total machine weight of approximately 17,000 kg. The XQZ152 DTH drill rig offers a drilling diameter of 90–165 mm and a depth of 35 m or 42 m; it is powered by a 264 kW engine and features an air compressor with 22.7 m³/min airflow at 20 bar pressure, weighing approximately 22,000 kg. The XQZ178 DTH drill rig has a drilling diameter of 110–190 mm and a depth of 54 m or 36 m; engine options include 358 kW, 354 kW, or 383 kW, and it is equipped with an air compressor delivering 28 m³/min airflow at 25 bar pressure, with a total weight of approximately 24,500 kg. The ZTD90 electric DTH drill rig, featuring a hydraulic support frame, has a drilling diameter of 80–100 mm, a minimum drilling depth of 20 m, a 3 kW motor, and a total weight of approximately 320 kg.
The SL400 DTH drill rig has a drilling diameter of 105–305 mm and a maximum drilling depth of 213 m; it is commonly used for drilling water wells, monitoring wells, ground-source heat pump boreholes, and pre-drilling for bridge pile foundations. Launched by Sunward Intelligent in 2022, the SWDE152BF integrated DTH drill rig covers a hole diameter range of 115–165 mm with a maximum depth of 36 m; it utilizes a Cummins China IV (National IV) engine with a maximum power of 264 kW. The SWD165 integrated hydraulic DTH drill rig, launched in 2006, employs a high-pressure air DTH drilling system with an operating pressure of 1.05–2.5 MPa, effectively reducing the machine's overall energy consumption.
