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Sandvik Mining and Rock Technology

Hollow core bolts are engineered with a central hollow design, making them perfect for injecting grout or resin during or after installation. This ensures a secure bond with surrounding materials, anchorage strength and load transfer for superior structural integrity. Designed for efficient grouting and easy installation. Hollow core bolts provide load transfer and allow for post-installation grouting, enhancing stability and safety in a variety of conditions.

Hollow core bolts

Onestep Bolt

The OneStep Bolt is a self-drilling rock bolt that integrates the drill head, drill steel, bolt, and adhesive resin into a single unit. The design streamlines the installation process by combining drilling, resin capsule insertion, and bolt setting into one step.

Onestep Bolt

DSI Hollow Bar System

The DSI Hollow Bar System is a self-drilling, load-bearing solution for tunneling and geotechnical applications. It enables simultaneous drilling, installation, and grouting in a single operation—eliminating the need for casing or rod removal.

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