Dynamic Matching: Rock Hardness vs. DTH Drill Parameters

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  1. Maximize efficiency with dynamic matching of rock hardness and parameters. Every 2-point f increase needs 30-50 fewer impacts/min.DTH drill
  2. Raise drill pipe thrust by 8-10kN for “low-frequency, high-thrust” hard rock mode. For f=4-6, optimal settings: 280 impacts/min + 22kN + 18r/min.
  3. This gives 1.2m/kWh energy output. For f=9-11: 180 impacts/min + 35kN + 10r/min (0.45m/kWh).

 

Smart drills sense cuttings hardness (±0.5f error), adjust parameters in 1.5s. 20% more efficient than manual tuning, ideal for variable rock.DTH drill