Xuzhou Mining Group Co., Ltd. (referred to as "Xukuang Group") is a super large energy and chemical enterprise directly under the People's Government of Jiangsu Province. It is one of the coal mines with the longest history of underground mining in China and has a long history. Currently, it has successfully developed several coal mining projects in Aksu, Xinjiang, Baoji, Shaanxi, Pingliang, Gansu and other places. Xukuang Group adheres to the policy of "safety first, prevention first, and comprehensive treatment", strengthens the equipment usage needs of safety hazard investigation, and has purchased the ZYJ column hydraulic rotary drilling rig series from our company.

The power mechanism of the ZYJ column hydraulic rotary drilling rig series uses wear-resistant hydraulic oil as the power source, with high torque and strong power. The propulsion mechanism adopts a two-stage cylinder propulsion system, which has high thrust, smooth operation, and high safety. The drilling depth of the drilling rig is 217-230m for rock and semi coal rock tunnels, 240-260 meters for coal tunnels, and 70 meters for bottom holes. Suitable for drilling operations in rock tunnels, coal tunnels, and semi coal rock tunnels with a height of 1.5-4.5 meters and a tunnel width generally not less than 2.2 meters.