Huaxin Concrete Company Xiangfan Branch uses the SWDB165 integrated hydraulic downhole drilling rig, which is the sixth drilling rig of the same model that Huaxin has bought from our company. The rock drilling equipment that mainly applies in the main drilling process is very effective in the mine road construction and surface mining. The field measurement shows that the machine can finish a blast hole of 15m deep in less than 40 minutes, including the assistant work like contraposition.