Tunnel-Ready JK930 Hydraulic Tophammer Drill Rig Atlas Copco Compressor 7-Rod Carousel

The Tunnel-Ready JK930 hydraulic tophammer drill rig is configured for tunnel portal, adit and underground access works where reliable hole flushing and dust control are essential. It carries a Swedish Atlas Copco single stage screw compressor delivering 10 m3/min of flushing air at 8 bar, ensuring efficient slag removal in fractured ground. The Montabert HC150 drifter with aerosol lubrication of the bit shank extends tool life in abrasive tunnel rock. With seven drill rods stored in the carousel and a rod fall protection device fitted, the machine keeps the drill string safe and the cycle fast in confined portal areas.

• Atlas Copco Compressor: Swedish screw compressor provides 10 m3/min at 8 bar for powerful hole flushing.
• Aerosol Bit Lubrication: Automatic shank lubrication reduces tool wear in abrasive tunnel formations.
• Rod Fall Protection: A dedicated safety device protects the drill string during carousel handling.
• Fast Automatic Rod Change: Seven T45/T51 rods are changed automatically, minimizing auxiliary time at the face.
• Compact Portal Footprint: The folding boom and crawler base work efficiently in restricted portal areas.
• Three-Stage Air Filtration: Clean intake air protects the engine and compressor head in dusty tunnel environments.

This rig is used for tunnel portal excavation, adit development, drainage and probe hole drilling ahead of tunnel faces, and rock support works in underground caverns. It also suits highway cut-and-cover sections and mining development headings where reliable flushing and safe rod handling are priorities.

The machine is exported with seaworthy packing and complete CE and ISO 9001:2015 documentation. Each rig is factory tested, including the compressor and rod carousel functions. Commissioning support, operator training and a comprehensive spare parts package are provided for tunneling contractors worldwide.