single-arm roof-cutting and pressure relief drill rig

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

The single-arm roof-cutting and pressure relief drill rig for coal mines is a high-efficiency drilling device specially developed for underground roadway roof cutting and pressure relief operations. Featuring a crawler chassis, the rig can move flexibly in narrow and complex tunnels. Its drill arm supports front and rear adjustments ranging from -25 degree to +25 degree, as well as 360 degree pitch rotation. Without moving the whole machine, the drill arm can be shifted 600mm forward and backward and 300mm left and right, greatly enhancing operational convenience and precision. This equipment is suitable for various coal seams and rock formations, meeting the requirements of roof cutting and pressure relief under different geological conditions.

Features of Single-Arm Roof-Cutting and Pressure Relief Drill Rig

• Excellent safety performance, effectively reducing the physical labor of underground workers, and suitable for various shapes and gradients of tunnels.
• Compact structure design, fully hydraulic system, simple and convenient operation; crawler travel allows for efficient and flexible repositioning.
• Large torque output of the power head, long drilling stroke, and fast drilling speed significantly improve drilling efficiency.
• Equipped with a hydraulic rapid feed and drill rod assembly/disassembly device, making rod changing and feeding operations more efficient and labor-saving.
• Uses a variable hydraulic control system that automatically adjusts speed and torque according to load during drilling, ensuring a smoother and more reasonable drilling process.

Application Fields

This equipment is widely used for roof cutting and pressure relief drilling in underground coal mine roadways, especially for slotted blasting hole construction in 110 and N00 mining methods. It is also suitable for other engineering borehole operations and can be used in coal seams and rock formations with a rock firmness coefficient of f less than 14, meeting various engineering needs such as roof management, ground pressure control, and disaster prevention in coal mines.