Self Drilling Anchor Bolt Suppliers and Manufacturers

Self-drilling anchor bolt combines drilling, grouting and anchoring together. It ensures the anchoring effect in complex ground conditions. It¡¡¥s safe, reliable and efficient. Anchor bolt r32n Outside diameter(mm) 32 Internal diameter (mm ) 18.5 Ultimate load (kn) 280 Yield load (kn) 230 Weight (kg/m) 2.9 Thread type iso10208 Type of steel en10083-1 Left or right length(m) 1-6m, we can supply any length according to construction require Options of anti-corrosion hot-dipped galvanization Usually anchor bar in bundles accessories in carton/pallet also depend on the customer's requirement

Features 1. Safe, reliable, and time saving. 2. Simple installation & operation. 3. Choice of drill bits for different ground conditions. 4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively. 5. Anchor bars can be cut and lengthened on request, applying to narrow spaces. 6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread. Application Tunneling Mining Slope stabilization Foundation support Carton

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Anti-corrosion Mechanism Duplex coating is a combination of hot-dip galvanizing and epoxy coating. Firstly, product is hot-dip galvanized, and then epoxy powder is sprayed on the surface. The anchor bolt has better anti-corrosion performance and longer service life after two kinds of anti-corrosion processes. It can not only resist ordinary chemical corrosion, but also work in acidic environment and electrochemical corrosion with stray currents. Product Standard Duplex coating combines all the performance parameters of hot-dip galvanizing and epoxy coating. Hot-dip galvanizing meets the requirements of the table below. Epoxy products are mainly based on EN 13438 Paints and varnishes - Powder organic coatings for hot dip galvanized or sherardized steel products for construction purposes, with a minimum coating thickness of 60um. Bending performance of epoxy coating complies with ISO 1519 Paints and varnishes - Bend test (cylindrical mandrel). Impact performance meets ASTM D2794 Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact). Adhesion conforms to ISO 2409 Paints and varnishes -Cross-cut test. Featurs and Advantages Excellent anti-corrosion properties: As zinc is an active metal, after coating surface is damaged, it will protect the steel by battery effect. Long service life: Zinc layer is consumed very slowly in the atmosphere, so its service life far exceeds that of any other coatings. Full protection: As immersed into hot-dip galvanizing bath�¯�¼?products are fully protected and anti-corrosion effect is better. Lower price: In most cases, the hot-dip galvanizing cost is lower. Zinc coating is more durable than others, and does not require maintenance in the future. High processing efficiency: Hot-dip galvanizing bath is simple and efficiency is higher than other coatings. After curing, the coating material will not melt even if it is heated again. It has high chemical stability. The formed coating has high adhesion to metal, low drying shrinkage and high ductility. In the case of the coating is not damaged during operation, it can effectively block corrosive substances. Service Life The service life of duplex coating anchor bolt is usually much longer than single anti-corrosion treatment, which is a synergistic effect. In most environments, the service life of duplex coating anchor bolt can reach 100 years without maintenance; the first maintenance service life of duplex coating anchor bolt in a severely corrosive environment is nearly double that of hot-dip galvanizing anchor bolt. Application Duplex coating anchor bolt is generally used in the permanent support of hydro-projects, underwater tunnels, subway tunnels and some important buildings affected by groundwater for a long time. And it is also widely used in harbors, wharfs, offshore buildings which are corroded by seawater.

As an efficient anchoring method, self drilling rock bolt is used in complicated, loose and broken geological condition. It�¢??s widely applied to pre-support project, radial support project, slope stabilization, foundation support project, roadway support project, soil nail wall, back pull anchor rod retaining wall and other rock supporting work. Functions: Self drilling anchor system is an advanced system which can ensure the anchoring effect for complex ground conditions. It can be integrated with the functions of drilling, grouting and anchoring. Conditions: Self drilling anchor bolt system is mainly used for slope stabilization, foundation with micropiles and tunneling, it�¢??s also widely used in the railway system, metro project, etc. It can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the self drilling anchor bolt technique for fast and simple method of installed compared to the traditional method. Features and advantages: 1. It features a hollow bore for flushing, or simultaneous drilling and grouting. 2. Reliable, Efficient and Convenient. 3. Choice of drill bits for different ground conditions. 4. It can be elongated by using couplers. 5. Suitable for anchoring in broken geological condition and narrow space, which has achieved perfect effect.

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Product Description LUHUI R51High Quality Solid Rock Cross Rock Drill Bits for Mining EC type Suitable Conditions: Majority of applications including narrow bands of soft rock EC type Description:Hardened tri-crescent drill bit with a curved blade shape Diameter(mm)typeweight(kg)thread76EW0.92 Diameter(mm) type weight(kg) 76 EW 0.92 90 EW 0.98 100 EX 1.67 Application Tunnelling Ground engineering • Radial bolting • Slope stabilization • Forepoling • Micro injection pile • Face stabilization • Temporary support anchor • Portal preparation • Soil nailing -

Self drilling screw, self tapping screw, anchor bolt, fasteners.Manufacturing

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