Monorail Hydraulic Roof Bolting Drill Rig for Coal Mines (Dual-Arm)

The Monorail Hydraulic Roof Bolting Drill Rig for coal mines is an innovative piece of roadway support equipment, developed based on the existing domestic bolting machinery technologies while incorporating advanced international design concepts. Tailored to meet the specific requirements of China’s coal mine roadway excavation and support conditions, this rig is a fully independent intellectual property product. With its compact design, reasonable structure, and high operational flexibility, it can be seamlessly paired with various tunneling machines such as roadheaders, continuous miners, and bolter miners. It represents the state-of-the-art in roadway support systems.

By adopting a monorail beam travel system, the drill rig enables smoother coordination and interchange with other tunneling equipment, overcoming the limitations of traditional bolting rigs that often face difficulties when maneuvering around or coordinating with excavation machinery.

Key Performance Features

• Compact Size & Flexible Operation
  The rig features a small footprint and a compact, integrated structure that allows for agile movement and flexible control in confined mining environments.

• Integrated Operating Platform
  The operator platform is combined with the drill boom to enable synchronized movement—”person moves with the drill.” The platform maintains horizontal alignment during elevation changes, ensuring accurate, level, and safe operation with intuitive control.

• Long-Stroke Telescopic Arm
  The long extension stroke of the telescopic boom compensates for positional deviations when the boom moves from bottom to top or from inside to outside across the tunnel section. This greatly expands the working range and enables multi-row bolting operations.

• Foldable Operation Platform
  The bolt drill rig features a foldable platform, reducing its total width for easier maneuvering. The platform is side-mounted for easier worker access and ensures that both roof and rib bolting operations can be carried out conveniently.

• Multi-Directional Boom Mobility
  Each drill boom supports pitch, yaw, lift, and telescoping motions. Two booms can work simultaneously or independently to drill all roof and rib bolts (anchors) without interfering with each other—ideal for varying tunnel heights and forward-probing functions.

• Auxiliary Mesh Installation Capability
  Designed to support mesh installation, the rig helps reduce labor intensity and enhance personnel safety during operations.

• High Torque Rotary Drills
  The bolting drills are equipped with high-torque rotary drives, providing strong pretension forces on the bolts and eliminating the need for secondary tightening.

• Hydraulic Power Outputs
  Each drill boom includes a high-pressure hydraulic power outlet (>40 MPa), allowing quick and efficient tensioning of cable bolts using integrated tensioning devices.

• High Stability Structure
  With deployable front and rear stabilizing legs, and additional top bracing support, the entire rig ensures exceptional operational stability during drilling and anchoring.

• Hydraulic Rod Clamp System
  The rig is equipped with a hydraulic rod clamping and removal system, enabling fully mechanized rod disassembly and reducing manual labor.