Expansion Shell Mechanical Rock Bolt

Expansion shell mechanical rock bolts are high-performance active support elements designed for geotechnical engineering. Featuring a mechanical expansion anchor head and high-strength alloy steel body, these bolts deliver immediate anchoring force upon installation without waiting for grout curing. The dual reinforcement mechanism of mechanical locking and grout bonding ensures reliable bearing capacity, while the prestressed design actively controls surrounding rock deformation. Suitable for mines, tunnels, foundation pits, and slope stabilization projects, these bolts excel in complex geological conditions including broken rock, fault zones, and water-rich strata. Available in multiple specifications with customizable options to meet diverse project requirements.