L-type Double-Wall Rock Drill
L-type Double-Wall Rock Drill
Product details
Product Introduction

Technical parameters:

Maximum torque of outer drill rod (N·m): 27000

Maximum torque of inner drill rod (N·m): 4600

Engine power (kW): 194

Total weight (kg): 15000

Crawler travel speed (km/h): 3–5

Maximum thrust/pull force (kN): 450 / 900

Entry angle (°): 12–20°

Maximum reaming diameter (mm): 1300

Overall dimensions (L × W × H) (mm): 8250 × 2320 × 2650 / 3150

Maximum thrust/pull speed (m/h): 55

Maximum rotation speed of outer drill rod (r/min): 95

Maximum rotation speed of inner drill rod (r/min): 152

Mud pump maximum flow (L/min): 600

Mud pump maximum pressure (MPa): 10

Maximum climbable gradient (°): 18°

Maximum construction distance (m): 700 (varies with geological conditions)


Description – Product Strength:

  1. Utilizes Rexroth (Germany) automatic control system with load-sensing, increasing thrust force by 15%–20%, saving ~50% energy, and reducing heat.

  2. Equipped with Cummins engine for high efficiency, low fuel consumption, and robust performance.

  3. High-power Cummins engine enhances performance.

  4. Auxiliary booster increases traction to 900 kN for large-diameter safety.

  5. Four-layer sliding plunger mud pump structure improves suction angle and prevents separation.

  6. Reversible electromagnetic vibrator enables efficient drill rod loading/unloading and reduces labor.

  7. Comes with friction drums: φ89 × 3000 mm, φ114 × 3000 mm, φ127 × 3000 mm, suitable for medium-duty high-efficiency construction.

  8. Key hydraulic components from world-leading brands ensure high reliability.

  9. Optimized electrical system with low failure rate and easy maintenance.

  10. Rack-and-pinion propulsion system ensures efficiency, long life, and easy service.

  11. Patterned steel crawler tracks provide strong terrain adaptability.

  12. “Casing-within-casing” drilling technology supports hard rock and high-efficiency operations.

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