1. Drilling capability

Drill rod type Drill rod specification Drilling depth (m)

Internal thickened drill rod 50mm drill rod 700

60mm drill rod 550

Rope Coring Drill Rod 55.5mm Drill Rod 800

71mm Drill Rod 600

89mm drill rod 450

114mm drill rod 280

2. Coring auxiliary winch

Maximum lifting capacity 1.5 tons

Wire rope length 820 meters (diameter φ6mm)

Rope lifting speed 85m/min (first layer)

3. Drilling angle 45°～90°

4. Power head speed (forward/reverse) 0～912r/min

5. Maximum torque of power head 1110 Nm

6. Maximum feed stroke of power head: 1800mm

7. Power system: 2 Changchai 4L88 diesel engines, 55Kw@2200 r/min

8. Maximum lifting force of drilling rig is 120KN

9. Maximum pressure of power head: 70KN

10. Maximum pressure of hydraulic system: 28MPa

11. Drilling rig weight (including mud pump): 2900Kg

12. Matching mud pump BW-160/10M, maximum flow rate 160L/min, maximum pressure 10MPa