Remote-Controlled 1.06m-Wide Hydraulic Roof Bolting Drill Rig for Coal Mines

The Remote-Controlled Hydraulic Roof Bolting Drill Rig (1.06m width) is a specialized narrow-profile support equipment designed for underground coal mine operations. It is intended for use in conjunction with roadheaders and drilling/loading units to perform rapid and coordinated support work, enhancing operational balance and efficiency. This rig is particularly well-suited for support tasks in coal and semi-coal rock roadways, enabling both roof and rib (sidewall) bolting and anchoring operations. In addition, it supports blasting hole drilling and exploratory borehole applications such as water and gas detection within coal seams.

Performance Features

• Flexible Positioning System: Equipped with two horizontally translational bolting arms, the rig enables full-section mechanized support of roof and rib anchor bolts and cables. It also supports frontal drilling for blasting holes and exploratory boreholes (for gas and water).

• High Output and Reliability: The rotary bolting drill delivers high torque (up to 350 N·m) and strong pretensioning force, effectively eliminating the need for secondary tightening and ensuring high-quality, stable support.

• Enhanced Safety: An advanced temporary forward support mechanism with tilt, vertical/horizontal extension capabilities ensures that operators work under permanent support, eliminating the risks of unsupported roofs. The mechanism also enhances machine stability during operation. A load-sensing hydraulic system reduces energy consumption and operational costs, and all core hydraulic components are sourced from internationally recognized brands.

• Remote Control Capabilities: The travel system, temporary support mechanism, and scraper plate are operated via remote control, while other functions remain manual. This hybrid approach improves safety and control in confined or hazardous environments.

• Advanced Filtration and Cooling: A multi-stage filtration system ensures hydraulic fluid cleanliness, reducing failure rates. Matched pump flow and a high-efficiency water-cooled heat exchanger maintain optimal hydraulic system temperature and performance.

• Hydraulic System Excellence: The system is engineered for stability and safety, utilizing high-performance imported hydraulic components to ensure long-term operational reliability.

• Cable Tensioning Ready: Each bolting arm includes a power output port (pressure > 40 MPa) for post-installation cable tensioning, improving anchoring efficiency.

Special Features of the Translational Bolting Arm

• Level Operation: The bolting rig and operator platform maintain horizontal alignment during vertical motion, allowing fast, accurate positioning and ensuring ergonomic, horizontal working posture for the operator.

• Extended Reach: The telescopic arm features long stroke capabilities that compensate for lateral or vertical displacements within the tunnel cross-section, enabling expanded work coverage and support across double-row bolt spacing.

• Foldable Operator Platform: The folding design accommodates vehicle passing requirements during excavation. The platform is mounted externally and adjacent to the tunnel wall, optimizing access for both roof and rib bolting tasks, and overcoming issues common in centrally mounted designs that limit rib access.

• Precision Motion Control: Two swing cylinders at the front of the boom arm allow for flexible positioning to meet both roof and rib support demands, while also supporting forward probing operations.

• Durable and Compact Design: The proprietary bolting head is characterized by high structural strength, superior resistance to bending and torsion, and a compact, efficient layout—ensuring reliable performance even in demanding underground conditions.