At Hunan metal mine, with a section of 3.5X3.5 meters, a mining bolting rig is equipped with the WOSERLD hydraulic rock drill. The depth of the anchor hole is 1.9 meters, with an average drilling time of 1 minute 30 seconds per hole.
At Hunan metal mine, with a section of 3.5X3.5 meters, a mining bolting rig is equipped with the WOSERLD hydraulic rock drill. The depth of the anchor hole is 1.9 meters, with an average drilling time of 1 minute 30 seconds per hole.