Single-boom hydraulic drilling rig, Sandvik brand, model DD311, with 40 m² coverage and a weight of approximately 15,000 kg; equipped with one 20kW RDX5 rock drill, SB40 boom, and fixed TF500 (12-16 ft) or TFX telescopic feeds. It features a 74 kW TCD2012 diesel engine (Tier 3), hydrostatic transmission, and THC561 hydraulic control system, designed for 3×3 m sections with 380V to 690V multi-voltage power supply.
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