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China High-Strength Twisted Anchor Rod - Global Geological Support For Tunnels & Mines | Jiufu Supplier,Manufacturer | Jiufu Mining Accessories

High-Strength Twisted Anchor Rod – Global Geological Support for Tunnels & Mines | Jiufu

High-Strength Twisted Anchor Rod – Global Geological Support for Tunnels & Mines | Jiufu suitable for underground mining, tunnels, and infrastructure construction. Customizable sizes are available, and the product complies with multiple certifications and tests including ISO9001, EAC, SGS, and DEKRA. Direct shipping is available to over 150 countries. Easy installation requires no grouting agent.


  • Fob Price: US $0.5 - 9,999 / Piece

    • Details

    High-Strength Twisted Anchor Rod - Global Geological Support Solution for Tunnels & Mines

    As a professional manufacturer integrating R&D, production, and export, Hebei Jiufu Industrial and Mining Parts Co., Ltd. presents the High-Strength Twisted Anchor Rod—an engineered solution for reliable geological support across diverse engineering scenarios. Trusted by projects in 150+ countries, from Southeast Asian tunnels to African deep mines, this twisted anchor rod combines exceptional tensile strength, corrosion resistance, and adaptable design to meet the rigorous demands of modern mining, infrastructure, and slope stabilization projects.

     

    Key Parameters Standard Specifications Customization Range Global Compatibility Standards Performance Indicators
    Anchor bolt diameter 18mm/20mm 16-25mm Complies with ISO 898-1 and ASTM A325 standards Tensile strength: ≥500 Mpa
    Length 1-3m 1-5m Compatible with Vietnamese TCVN and Australian AS standards Yield strength: ≥350 Mpa
    Surface treatment Hot-dip galvanized (430g/㎡) Hot-dip galvanizing (430-600g/㎡), epoxy coating Corrosion resistance level up to C5-M (ISO 12944) Initial anchoring force: 8-12 Tons
    Twist pitch 20mm 15-30mm Meets EU CE certification requirements Service life: ≥10 years
    Supporting components Washers, nuts, shear pins Customized anchor heads, resin capsule adapters - Installation efficiency: ≤10 minutes/piece

    For Southeast Asian tunnel projects, we offer 18mm diameter twisted anchor rods with 20mm pitch to fit narrow drill holes; for African mines, 20mm diameter with enhanced tensile strength (≥550 Mpa) to withstand hard rock conditions—tailored to local geological needs.

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    Core Product Characteristics

    1. Superior Material & Structural Design

    Crafted from high-quality alloy steel with low Si&P content (consistent with Jiufu’s strict raw material standards), the twisted anchor rod features a precision-engineered twisted core structure. This unique design not only enhances tensile strength (minimum 500 Mpa) and shear resistance but also optimizes resin mixing efficiency when paired with resin capsules. The rod is complemented by a complete set of accessories—including washers, spherical seats, nuts, and shear pins—to ensure stable anchoring and easy preloading. Available in standard diameters of 18mm and 20mm (customizable from 16mm to 25mm) and lengths of 1-3m (extendable up to 5m), it adapts seamlessly to various project requirements.

    2. Multi-Scenario Adaptability

    Engineered for versatility, the High-Strength Twisted Anchor Rod excels in a wide range of applications:
    • Underground Mining: Ideal for coal mines, gold mines, and bauxite mines, providing robust roof and wall support in fractured rock and high-vibration zones. Particularly effective in South African deep-level mines and Southeast Asian coal mining projects.
    • Tunnel & Infrastructure: Trusted for tunnel reinforcement , bridge foundations, and dam slope stabilization. Performs reliably in humid, corrosive, or permafrost environments with customized surface treatments.
    • Slope & Civil Engineering: Perfect for mountain engineering, urban expansion projects, and excavation support, reinforcing soil and rock layers to prevent erosion and collapse.

    3. Customizable Surface Treatments

    To suit diverse environmental conditions, we offer three surface treatment options:
    • Hot-Dip Galvanizing: 430-600g/㎡ coating thickness (customizable), delivering exceptional corrosion resistance for humid tunnels, coastal dams, and Australian corrosive sites.
    • Electro-Galvanizing: Cost-effective anti-rust protection for general engineering environments with moderate humidity.
    • Epoxy Coating: Superior chemical resistance for mines or projects with aggressive soil/groundwater conditions, extending service life to over 10 years.

    Key Advantages

    1. Enhanced Anchoring Performance

    The twisted core design eliminates resin voids and improves centralization within the drill hole, achieving an initial anchoring force of 8-12 Tons—significantly higher than standard anchor rods. The shear pin mechanism ensures precise preloading at a predefined torque (50-80 N·m), guaranteeing consistent support quality across the project.

    2. Efficient Installation & Cost Savings

    Compatible with handheld rock drills and standard construction equipment, the installation process is streamlined: drill, clean the hole, insert the rod with resin capsules, rotate to mix resin, and tighten the nut. No specialized technicians are required, reducing installation time by 15% compared to traditional anchor rods. Its long service life and low maintenance needs further lower overall project costs.

    3. Global Quality & Compliance

    Manufactured in Jiufu’s 14,000㎡ standardized factory with 13 automated production lines, each twisted anchor rod undergoes strict quality control—from raw material inspection to finished product testing. The product is ISO9001 certified and complies with international standards (ISO 898-1, ASTM A325) and local regulations (e.g., Vietnam TCVN, Australian AS), ensuring seamless integration into global projects.

    4. Tailored Solutions & Global Support

    We offer comprehensive customization services to meet unique project requirements:
    • Customizable parameters: Diameter, length, twisted pitch (15-30mm), surface treatment thickness.
    • Accessory customization: Custom anchor heads, resin capsule adapters, and branded packaging.
    • One-stop service: From technical consultation and sample confirmation to mass production and global shipping. We support FOB, CIF, DDP, and other shipping terms, with 7-20 days delivery to major global regions.

    Installation Guidelines

    1. Preparatory Work: Conduct geological surveys and calculate required specifications (rod length, diameter, anchoring force) based on project needs.
    2. Hole Drilling: Use a rock drill with a bit 2-3mm smaller than the rod diameter (e.g., 19-21mm bit for 18mm rod) to ensure a tight fit.
    3. Hole Cleaning: Remove dust and loose particles with compressed air to avoid affecting resin adhesion.
    4. Resin & Rod Insertion: Place resin capsules into the hole, then insert the twisted anchor rod, ensuring the washer and nut are properly positioned.
    5. Mixing & Preloading: Rotate the rod clockwise to activate resin mixing (leveraging the twisted structure for uniform distribution). Tighten the nut with a torque wrench until the shear pin breaks, confirming proper preloading.
    6. Quality Inspection: Verify anchoring force with a hydraulic jack and conduct regular post-installation checks to ensure long-term stability.

    Why Choose Jiufu’s Twisted Anchor Rod?

    With annual sales of 50 million US dollars and 12,000 tons of products exported globally, Jiufu combines decades of manufacturing expertise with customer-centric service. Our High-Strength Twisted Anchor Rod is backed by 24/7 technical support, a 1-year warranty for defective products, and on-site installation guidance for large orders. Whether you’re working on a tunnel project in Vietnam, a mine in South Africa, or a slope stabilization project in Europe, we deliver reliable, customized support solutions that exceed expectations.
    Contact us today to request a sample, get a customized quote, or discuss your project’s specific needs—let Jiufu be your trusted partner for global geological support.
    Tools required for installation: rock drill (16-25 mm drill bit), resin capsules (compatible with the helical structure), hydraulic jack (for pull-out testing), and compressed air (for cleaning the drill hole).
    Installation steps:
    Insert the helical anchorbolt into the hole that has been filled with resin (the drill hole diameter should be 2-3 mm smaller than the bolt diameter). Rotate the bolt clockwise to ensure thorough mixing of the resin – the helical structure helps eliminate voids. Tighten the nut using a torque wrench (preset torque: 50-80 N·m) until the shear pin breaks, ensuring the required preload is achieved.
    Regional Installation Precautions:
    (1) In humid Southeast Asian tunnels, clean the boreholes twice with compressed air to prevent resin bonding failure; in deep South African mines, preheat the resin capsules to 15-25℃ to ensure optimal mixing.
    (2) For permafrost regions (such as Siberia), low-temperature resin capsules should be used, and the bolts should be installed within 5 minutes to prevent the resin from freezing.

    Customization Service

    Customization Options：Diameter (16-25mm), length (1-5m), surface treatment (hot-dip galvanizing thickness, epoxy coating), pitch (15-30mm), matching components (custom anchor heads, resin capsules).

    Customization Process：Send requirements (drawings/samples) → Get quote within 24h → Confirm sample (free for orders over 1000pcs) → Mass production (ISO9001 certified) → Direct shipping to your project site.

     

    Global Shipping & After-Sales

     

    Shipping Terms：Support FOB (Tianjin Port), CIF (Ho Chi Minh Port), DDP (Johannesburg Port) — 7-20 days delivery to major project regions (e.g., Southeast Asia 7-10 days, Africa 12-15 days).

    After-Sales Service:24/7 technical support via WhatsApp/email; free replacement for defective products within 1 year; on-site installation guidance for orders over 5000pcs.

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    FAQ

    1. How to start an OEM order?
    Send drawings or sample-Getting price-Payment-Make mold-Confirm sample-Mass production-Payment-Delivery.

    2. What is your terms of payment?
    We accept TT, L/C, Trade Assurance, Credit card, Western Union etc.

    3. Could you customize the packing?
    The logo, carton ans pallet can be customized.

    4. How do you ensure product quality?
    Better control from raw material, production, processing packing, storage until to shipment.And we passed the IS09001 quality management system certification.

    5.What kind of payment term you use to ship the goods?
    We support FOB, CIF, CFR, DDU, DDP etc, we got very rich experience shipping goods directly to customers plant.

    6.After-sales.
    Quick response day and night.

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      Hebei Jiufu Industrial and Mining Accessories Co., Ltd.

      The company adheres to the core business philosophy of "integrity-based, customer first" and provides attentive services to customers across the country, winning the trust and praise of the majority of users. In the days to come, all employees of Jiufu will continue to work hard, pioneer and innovate, and create sustained value for all new and old customers.
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