Kaishan ZT12 Integrated Surface DTH Drill Rig with Air Compressor

• Massive 20 m³/min @ 22 Bar Flushing Volume: Equipped with an enlarged two-stage screw airend delivering 20 m³/min airflow at 22 bar (319 psi), guaranteeing clean hole flushing and rapid penetration rate (ROP) in large 152 mm boreholes.
• High-Torque Rock Penetration (4,000 N·m): Delivers 4,000 N·m rotation torque combined with 39 kN feed thrust, providing aggressive cutting power through ultra-hard granite, basalt, and iron ore without bit stalling.
• Single-Operator Automated Efficiency: With the heavy 6+1 carousel for 4-meter Φ76/Φ89 mm rods, automatic oil spraying, and mechanical floating thread protection, one operator manages continuous deep drilling down to 32 meters from inside the safety cabin.

Q: What are the main performance advantages of the ZT12 compared to the ZT11?

A: The ZT12 upgrades to a heavy-duty Cummins QSL8.9 diesel engine (264 kW vs. 235 kW), expands screw compressor delivery to 20 m³/min at 22 bar (vs. 18 m³/min), boosts rotary torque to 4,000 N·m (vs. 2,500 N·m), increases drilling diameter up to 152 mm (vs. 130 mm), and features a 6+1 carousel adapted for larger Φ76/Φ89 mm drill pipes with mechanical floating thread protection.

Q: Does the ZT12 require any auxiliary compressor or separate power pack?

A: No. The ZT12 is 100% self-contained. The 264 kW Cummins diesel engine powers all hydraulic tramming, positioning, and drilling systems while directly driving the onboard 22-bar two-stage screw air compressor, operating completely autonomously with zero trailing air hoses.

Q: What down-the-hole (DTH) hammer and drill pipes are recommended for the ZT12?

A: The ZT12 is factory-optimized for Kaishan K5 series high-pressure DTH hammers and Φ76 mm or Φ89 mm × 4,000 mm friction-welded drill pipes, delivering exceptional energy transfer and penetration rates in hard rock formations up to f=20.