KJ311i Two-Arm Intelligent Tunneling Jumbo

KJ311i two-arm intelligent tunneling jumbo is a two-arm rock drilling robot for large and medium underground projects. The 4WD articulated chassis features flexible movement and strong climbing capacity, designed for 12-35 ㎡ large roadways. Dual full hydraulic booms and high-frequency rock drills with 360° rotatable feed beam realize full coverage drilling. Integrated 3D scanning, automatic positioning and remote operation systems ensure man-machine separation and high underground safety. With mining explosion-proof, dust-proof, noise reduction and exhaust purification functions, it delivers excellent hard rock drilling efficiency, being core equipment for intelligent construction of large overseas mines, long tunnels and coal roadways.

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Product Description:

  • Dual-arm operation, full large-section coverage

    Two independent hydraulic booms work synchronously or separately to expand working range. The 360° rotatable and self-leveling feed beam realizes drilling at any angle on roof, side walls and face without blind area.

  • 4WD articulated chassis, strong site adaptability

    4-wheel drive and articulated steering deliver large traction and small turning radius. It travels smoothly on uneven roads and steep slopes with maximum gradient of 14°, flexible for tunnels and mine roadways.

  • Dual-power rock drill, efficient hard rock drilling

    13kW and 18.8kW high-frequency rock drills are optional with high impact frequency and large torque. It drills fast on granite and limestone with good hole quality, improving working efficiency by over 40% compared with traditional jumbos.

  • Full intelligent system, high unmanned level

    Dual positioning of 3D scanner and total station realizes automatic drawing matching and hole layout. The intelligent anti-jamming and deviation correction protect tools in real time. Full-process data traceability meets smart mine requirements.

  • Multiple mining safety protections, reliable for harsh conditions

    Mining Ex explosion-proof, IP65 dust & water proof. FOPS roof resists falling rocks. Exhaust purification reduces harmful gas. All protections comply with overseas mine safety standards.

  • Three control modes, higher operation safety

    On-site, wireless remote and cloud control enable operators to work in safe ground areas, avoiding underground risks such as falling rocks, gas and collapse.

  • 24-hour continuous operation, reliable for tight schedule

    The hydraulic, power and electric systems are fully optimized with excellent heat dissipation and load capacity, supporting non-stop operation for tight overseas project schedules.

  • Modular design, convenient maintenance

    Components are arranged in modular zones. Wearing parts are easy to disassemble and replace, cutting on-site maintenance time and labor cost.

  • Custom service available, adapt to diverse conditions

    Customized on roadway size, rock hardness, explosion-proof grade and communication protocol. 5G remote system and geological detection module are optional to meet standards of different regions.

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