Custom Self Drilling Friction Bolt Manufacturer in China
We are your reliable supplier for friction bolts and Self-Drilling Friction Bolts (SDFB), also known as Swellex or Split Set anchors. Our high-strength rock reinforcement systems provide immediate ground support in mining and tunneling, enhancing safety and operational efficiency in various geological conditions.
Sinodrills - Your Trusted Self Drilling Friction Bolt Manufacturer from China
We specialize in Self-Drilling Friction Bolts (SDFB). Our integrated manufacturing process ensures superior strength and performance for your mining and tunneling projects. Get reliable, single-step ground support solutions delivered directly from our factory, ensuring competitive pricing and consistent quality for enhanced site safety and efficiency.
Self Drilling Friction Bolt Benefits
Single-Step Installation: Combines the drilling, insertion, and often the grouting process into a single, streamlined operation. This significantly reduces installation time and accelerates the overall project timeline.
Excellent Ground Adaptability: The bolt drills its own hole and secures the anchor simultaneously, eliminating the problem of borehole collapse in fractured, loose, or weak geological formations.
Immediate Ground Support: Provides instant radial pressure and friction-based support as soon as it is installed. This critical feature ensures immediate safety and stability in the work area.
Enhanced Worker Safety: Streamlining the process minimizes the time personnel are exposed to newly excavated, unsupported ground. This single-step operation lowers construction risk dramatically.
Self Drilling Friction Bolt Applications
Underground Mining: Essential for immediate and reliable ground stabilization in development headings, tunnels, and stopes. The single-step installation process significantly speeds up cycle times and enhances safety for miners working in challenging rock mass conditions.
Tunneling and Infrastructure: Provides temporary or permanent support in road, rail, and utility tunnels, particularly effective in fractured or soft ground. SDFBs are crucial for rapid advance in urban environments where ground movement control is paramount.
Slope Stabilization: Used to anchor unstable rock faces and cut slopes along highways and railways. The self-drilling capability allows installation through loose overburden and weathered rock without the need for pre-drilling, offering an efficient solution.
Hydroelectric Projects: Applied in the construction of powerhouses, shafts, and water conveyance tunnels to manage high in-situ stresses and water ingress. SDFBs offer high load-bearing capacity and corrosion resistance for long-term service life in wet environments.
Customize Your Desired Self Drilling Friction Bolt
Bolt Material and Coating
We provide a selection of high-strength steel grades to meet your required load-bearing capacity and resilience. For corrosive environments, we offer various protective coatings, including hot-dip galvanization or specialized anti-corrosion treatments, significantly extending the service life of the bolts in wet mines or tunnel sections.
Customizable Bolt Length and Diameter
We manufacture SDFBs in a precise range of lengths and diameters to match the depth and geological strata of your drilling plan. Whether you require shorter bolts for face stabilization or longer anchors for deep rock mass reinforcement, we tailor the bolt dimensions to guarantee optimal friction and pull-out resistance for your specific application.
Drill Bit Design and Configuration
The drill bit is the most critical component for penetration, and we customize its carbide insert configuration and head shape. This ensures superior performance when drilling through hard, abrasive rock, fractured ground, or soft shale. Custom bit design minimizes wear and tear, speeding up the installation cycle and reducing overall project costs.
Bearing Plate Geometry and Thickness
We offer various bearing plate shapes (square, round, or custom) and thicknesses to optimize load distribution on the rock surface. The plate’s design is crucial for effectively transferring the bolt’s load to the surrounding rock mass. We ensure the plate is sized correctly to prevent punch-through and provide long-term, stable support.
All-in-one Self Drilling Friction Bolt Solutions for Your Project
We deliver reliable Self-Drilling Friction Bolt (SDFB) solutions tailored for your project’s unique demands. Our high-strength, single-step rock bolts provide immediate and sustained ground support in mining and tunneling. We customize materials, lengths, and drill bit designs to ensure optimal performance, maximizing site safety and operational efficiency.
