The DSI Hollow Bar System is a versatile, self-drilling solution for ground control in both underground and civil engineering applications. It combines drilling, flushing, grouting, and anchoring in one efficient system, making it ideal for challenging ground conditions.
System components (basic elements)
Hollow bar
- Used as drill rod during installation
- Suitable for simultaneous or subsequent grouting
- Tension or compression member
Coupling
- Continuous inside thread with middle stop or center bridge
- Controlled drilling energy transmission
- Full load-bearing capacity
Drill bit
- One drill bit per installed unit
- Different diameters and designs
- Hardened and carbide insert versions
- Optimized for various ground conditions
DSI Hollow Bar System (Civil engineering edition)
Discover the versatility and strength of the DSI Hollow Bar System – an all-in-one, self-drilling solution for ground control in both underground and civil engineering applications.
Download the catalog to explore system components, installation methods, and performance benefits in challenging ground conditions.
DSI Hollow Bar System catalog EN
DSI Hollow Bar System catalog DE
Safe, efficient bolting – Seamlessly integrated with Dual Controls
New pumpable resin package for Dual Controls
The new pumpable resin package for Dual Controls enhances bolt installation, giving operators full control in challenging ground. It’s fully compatible with Versabolt™ for dynamic conditions, as well as DSI Hollow Bar / Self-Drilling Bolts, and Resin Roof Bolts.
Mineral Bolt technology for demanding ground conditions
The Mineral Bolt resin is engineered for demanding ground conditions. Compatible with Sandvik Dual Controls’ new pumpable resin system and manual injection, it cures fast and performs consistently—making bolting safer and faster underground.
Versabolt™ – One bolt. Multiple challenges.
Engineered for flexibility and performance, the Versabolt™ adapts to a wide range of underground conditions. Its innovative design ensures efficient installation and robust support in dynamic environments. Paired with our new pumpable resin package for Dual Control, the Versabolt™ delivers exceptional performance and full operator control in dynamic and challenging ground conditions.
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