Hollow anchor rod
Hollow injection anchor bolts and self-drilling anchors for broken rock conditions. One-step drilling, grouting, and anchoring. R32, R38, T76 specifications.
Expansion Shell Anchor-Custom Expansion Shell Anchors | Pre-Stress Roof & Ground Support Bolts
Our high-quality expansion shell anchors are designed for mining, tunneling, underground construction, and geotechnical reinforcement applications. With fast mechanical expansion and immediate anchoring force, they provide reliable load-bearing performance in rock support, slope stabilization, and excavation reinforcement projects. Available in custom sizes, materials, thread types, and pre-stress designs, these anchors can be tailored to different ground conditions and engineering requirements. Their robust structure helps ensure stable installation, strong holding capacity, and long-term performance in demanding environments. Easy to install and suitable for rapid on-site deployment, expansion shell anchors are an efficient solution for projects requiring dependable reinforcement and immediate support.
Glass Fiber Reinforced Polymer (GFRP) Bolt
Glass Fiber Reinforced Polymer (GFRP) Bolt, or fiberglass rock bolt, is a non-metallic support component compositely molded from high-strength glass fiber and resin matrix. It is mainly applied in mines, tunnels, underground projects and slope reinforcement. This product is characterized by light weight, corrosion resistance, easy cutting and simple installation. It is especially suitable for environments requiring subsequent excavation, mining or mechanical cutting, such as coal mining faces, tunnel working faces and temporary support zones.To satisfy various construction demands, GFRP bolts are available in solid bars, hollow grouting bars, fully threaded or ribbed structures. Matching accessories including bearing plates, nuts and connectors can be supplied together, enabling more flexible and efficient surrounding rock support solutions for engineering projects
Self-drilling Hollow Grouting Rock Bolt
Self-drilling hollow grouting anchor bolt is an efficient support product integrating three major functions of drilling, grouting and anchoring, specially designed for geotechnical projects such as tunnels, mines, slopes and foundation pits. Adopting a hollow threaded structure, the interior of the bolt body serves as a grouting channel to realize integrated construction of drilling while grouting, which effectively solves engineering problems including difficult hole forming and insufficient grouting in weak and broken strata.
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.
CT Rock Bolt | Special Combination Anchor Bolt for Hard Rock Roadway and Tunnel Support
CT anchor bolt is a special type of anchor bolt commonly used for supporting hard rock roadways, mine tunnels and underground engineering. It is suitable for rock stratum environments that require rapid installation and stable reinforcement. It usually combines mechanical anchoring and grouting reinforcement methods, enabling the quick formation of primary support on construction sites, and subsequent grouting can strengthen the bonding effect between the anchor bolt and surrounding rock. The product can be customized in terms of length, bolt body specifications, bearing plates, anti-corrosion treatment and other configurations according to project requirements, and is applicable to various rock mass reinforcement scenarios such as mining excavation, tunnel driving and underground chambers.