Product features: The HQ down the hole drilling rig is a new type of efficient and semi mechanized rock drilling equipment. It has a simple structure, small size, and light weight. Widely applicable to open-pit and underground mining, as well as drilling blasting holes and anchor holes in engineering, convenient and flexible. The down the hole drilling rig is powered by electric energy, with low noise and strong power. The drilling speed is 3-8 times that of a typical rock drill, and the ore drilled can have a high rock drilling humidity within the range of Proctor hardness coefficient F=8-16. The drilling depth per hour is about 8-16 meters.
