HFG-45+ open-pit split-type down-the-hole drilling rig is another cost-effective drilling rig product developed by Hanfa Group for various open-pit mining industries. The Hanfa team has collected a large number of the advantages of various drilling rig products on the market, and upgraded and optimized the walking parts, hydraulic system, propulsion beam, slewing head, and whole body of the drilling rig. The upgraded drilling rig has the advantages of strong climbing ability, large rotating torque, long motor life, can drill 3 meters at a time, adapts to various side holes and horizontal holes, and is suitable for various open-pit mining environments.