Self-Drilling Anchor Bolt for Mining and Tunneling
This self-drilling anchor bolt is designed for unstable ground conditions, featuring a hollow steel anchor bar and drill bits. It provides a bolting solution for mining and tunneling applications, including a coupling, nut, plate, and stopper.





Technical Specifications
Product Overview
Self-Drilling Anchor Bolt System
This self-drilling anchor bolt system is a comprehensive solution for ground support in unstable conditions. It integrates drilling, anchoring, and grouting into a single efficient operation, eliminating the need for pre-drilled holes. Designed for high performance in mining and tunneling, the system includes the hollow steel anchor bar, drill bit, coupling, nut, plate, and stopper.

Technical Specifications
System Components
- Hollow steel anchor bar
- Steel or carbide drill bit
- Coupling
- Nut
- Plate
- Stopper
- Available Models
- R25NR32LR32NR32SR38NR51LR51NT76NT76S
- Thread Type
- R&T Thread


Applications
Primary Applications
Suitable Environments
- Hard rock
- Unstable ground conditions
- Underground projects




