Product Overview The GL-300Q Underground Core Drill Rig is a full-hydraulic, split-type coring machine engineered for underground mine and tunnel geological exploration. Powered by a 45kW electric motor, it delivers a spindle speed of 0–1000 r/min and 660Nm of torque. The rig supports ±90° dip angle and 0°–360° azimuth angle drilling and is compatible with AQ/BQ/NQ drill tools for wireline coring. Its modular separated structure makes transport and assembly easy in narrow