COUPLING

Ay-Yıldız Engineering Coupling Sleeves are essential connection components used in self-drilling anchor (IBO Bolt) systems to securely join anchor bars and achieve the required installation length. When drilling depth cannot be reached in a single pass, coupling sleeves allow the anchor line to be extended safely, ensuring reliable anchorage in deep and challenging ground conditions.

Thanks to their hollow-body design, coupling sleeves do not obstruct the flow of water, air or cuttings during drilling, allowing the drilling process to continue cleanly and efficiently. After drilling is completed, the internal passage enables smooth grout injection throughout the anchor bar, enhancing the overall quality of the installation. Manufactured from high-strength steel, Ay-Yıldız Engineering Coupling Sleeves offer long service life and dependable performance in demanding tunneling and mining environments. A variety of diameter and length options provide flexibility and easy adaptation to different project requirements.

APPLICATIONS

• Extending anchor bars in long self-drilling anchor installations
• Continuation of support systems on tunnel roofs and sidewalls
• Lengthening anchor systems in deep ground and rock applications
• Fast and reliable assembly in challenging tunneling and mining operations

KEY FEATURES

• Securely connects anchor bars to achieve required installation length
• Manufactured from high-strength steel for long-term durability
• Hollow-body structure enabling uninterrupted drilling and grouting
• Available in various sizes for different application needs
• Full compatibility with IBO Bolt systems