Kaishan ZT12 Integrated Surface DTH Drilling Rig — Flagship Heavy-Duty Mining Rig

At its core, the ZT12 is powered by the Cummins QSL8.9-C360-30 engine, producing 264kW of dependable power. This engine is configured with a rear flywheel drive for the screw compressor and a front-end PTO for the hydraulic systems, ensuring maximum efficiency and minimal power loss. The integrated two-stage compressor provides a massive 20m³/min of air at 22 bar, allowing the rig to drive 5-inch hammers (K5) through hard rock (f=6-20) with incredible speed and efficiency.

Automation and precision are where the ZT12 truly shines. It features a mechanical floating protection system for the drill rods and an electro-hydraulic anti-jamming system that automatically adjusts feed and rotation to prevent sticking. The automated rod handling system (6+1 capacity) handles heavy Φ76mm or Φ89mm drill rods with ease, allowing the rig to reach an economical depth of 32 meters while significantly reducing the physical burden on the operator.

The ZT12′s operator environment is designed for long-term productivity and safety. The spacious, air-conditioned cab is fully ROPS and FOPS certified, providing the highest level of protection against site hazards. Inside, the operator has access to a modern control suite featuring hydraulic pilot joysticks and an optional drilling angle/depth indication system for perfect precision. The rig also includes an automatic oil-spraying lubrication system for the drill string, ensuring long-term reliability of consumables.

Mobility is exceptional for a 16,800kg machine. The crawler chassis provides 430mm of ground clearance and 87KN of traction, allowing the ZT12 to move confidently across rugged mining benches and steep grades. With its high-torque rotation motor (4000 N·m) and powerful feed system (39 KN), the ZT12 is the ultimate “drill and blast” solution for serious mining operations worldwide.