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Dual-Arm Roof-Cutting and Pressure Relief Drill Rig for Coal Mines

The dual-arm roof-cutting and pressure relief drill rig for coal mines is a highly efficient drilling device specifically developed for roof cutting and pressure relief operations in underground roadways. This dual-arm drill rig features a crawler chassis design, allowing it to adapt to narrow or complex underground environments. Its dual-arm structure not only improves construction efficiency but also enables flexible adjustment within a range of -25 degree to +25 degree, and offers 360 degree omnidirectional tilting for multi-angle roof cutting and drilling. The drill arms can also move 600mm forward and backward, and 300mm left and right, greatly enhancing operational convenience and precision without the need for frequent repositioning of the entire machine.

Main Features of the dual-arm roof-cutting and pressure relief drill rig

• Dual-arm design: Both arms can operate simultaneously or independently, offering higher efficiency and broader coverage.
• High safety: Significantly reduces the labor intensity of underground workers, lowers operational risks, and enhances safety protection.
• Full hydraulic drive: Compact structure, flexible operation, and crawler travel ensure the equipment can be quickly relocated and positioned.
• High-torque power head: Strong drilling capability and great drilling depth, suitable for high-intensity continuous work.
• Fast and efficient: The hydraulic system is equipped with rapid feed and automatic drill rod loading/unloading devices, reducing auxiliary time and improving overall operational efficiency.
• Intelligent variable system: Automatically adjusts rotation speed and torque according to load, making the drilling process more scientific and efficient, and suitable for different geological conditions.

Application Fields

This dual-arm drill rig is widely used for roof cutting and pressure relief drilling in underground coal mine roadways. It is suitable for slotted blasting hole construction in 110 and N00 mining methods with automatic roadway formation technology. In addition, it can also be used for drilling other underground engineering holes, fits coal and rock seams with a rock firmness coefficient of f≤14, and is an excellent device for coal mine roof management, disaster prevention, and roadway construction.