Self Drilling Anchor Rod
Classification:
Self Drilling Anchor Rod
Key words:
Self Drilling Anchor Rod
E-mail：
Tel：
Self Drilling Anchor Rod become the go-to solution for structural reinforcement. These rods are treated with an HDG (hot-dip galvanized) coating following EN ISO 1461:1999 standards, giving them a strong shield against weather and chemical exposure. The zinc layer forms a tight bond with the steel, making the rods ideal for both short-term projects and permanent installations.
Self-drilling anchor rod offers ease of installation and high performance. Here are the key features:
- Dual thread compatibility: Supports both R thread and T thread types for versatile use across systems.
- Integrated drilling and grouting: Enables simultaneous operations, reducing labor and project time.
- Robust HDG coating: Shields the bars from rust and chemical attack, even in marine or chloride-rich zones.
- Hollow injection bar system: The hollow core allows grout to flow through directly, ensuring strong bonding and effective void filling.
- Controlled zinc thickness: Maintains thread integrity for secure coupling with nuts or plates.
These features work together to meet the practical needs of modern civil engineering.
PRODUCT PARAMETERS | |||||||||
Type | Outer Dia(mm) | Inner Dia(mm) | thickness(mm) | Ultimate(KN) load | Yield Load(KN) | Weight(Kg/m) | |||
R25N | 25 | 14 | 5.5 | 200 | 150 | 2.3 | |||
R32L | 32 | 21.5 | 5.25 | 210 | 1600 | 2.8 | |||
R32N | 32 | 16 | 8 | 360 | 280 | 3.4 | |||
R32S | 32 | 16 | 8 | 360 | 280 | 4.1 | |||
R38 | 38 | 17/19/22 | 10.5/9.5/8 | 450/400/350 | 550/500/420 | 6.3/5.9/5.2 | |||
R51 | 51 | 29/33/35 | 11/9/8 | 800/660/550 | 640/540/450 | 9/7.7/7 | |||
T76N | 76 | 51 | 12.5 | 1600 | 1200 | 15 | |||
T76S | 76 | 45 | 15.5 | 1900 | 1500 | 19.7 | |||
T103N | 103 | 78 | 12.5 | 2282 | 1800 | 27.3 | |||
T103S | 103 | 51 | 26 | 3460 | 2750 | 42 | |||
T30/11 | 30 | 11 | 9.5 | 320 | 260 | 3.1 | |||
T30/14 | 30 | 14 | 8 | 260 | 220 | 2.8 | |||
T30/16 | 30 | 15 | 7.5 | 220 | 180 | 2.7 | |||
T40/16 | 40 | 16 | 12 | 660 | 525 | 7 | |||
T40/20 | 40 | 22 | 9 | 539 | 430 | 5.6 | |||
T52/26 | 52 | 26 | 13 | 929 | 730 | 10 | |||
T73/53 | 73 | 53 | 10 | 1630 | 970 | 12.3 | |||
T73/56 | 73 | 56 | 8.5 | 1414 | 785 | 11 | |||
T73/45 | 72 | 45 | 14 | 1630 | 1180 | 17.8 | |||
T130/60 | 130 | 60 | 35 | 7940 | 5250 | 75 | |||
Advantages and Applications of Hollow Injection Bar Systems
These systems offer notable advantages:
- Time-saving process: Combines drilling, anchoring, and grouting in one setup.
- High adaptability: Works in loose soils, fractured rock, and areas requiring reinforcement.
- Strong corrosion resistance: The HDG coating gives confidence for long-term stability.
Applications for the hollow injection bar include:
- Slope stabilization and excavation walls
- Tunnel face stabilization and radial bolting
- Foundations for wind turbines and bridge abutments
- Avalanche barriers and retaining systems
- Injection works for void filling or soil improvement
How Self Drilling Hollow Anchor Bars Work
The operation of a self drilling hollow anchor bar starts with attaching a drill bit to the tip of the bar. As the rod rotates and drills into the substrate, grout is pumped through the center cavity. This allows both anchoring and grouting to occur in a single, seamless operation. The process minimizes equipment shifts and is especially useful in confined areas like tunnel faces or unstable slopes. When used as a hollow injection bar, the system ensures complete coverage and ground bonding without delay.
Hollow anchor bar are mainly used in railways, highways, tunnels, mines, water conservancy projects, slopes, dams, bridge foundations, rivers, seas and lakes, high-rise building foundations and building reinforcement projects.
Through the middle rod body to the bolt slurry, it can achieve the purpose of consolidating the broken rock mass, forcing the partition control and the rod body force locking, which can form support with the rock mass stably and quickly, and the rock mass can rise steadily.
Self Drilling Hollow Anchor Bars Structure
Hollow bolt components: hollow bolt body, stopper, backing plate, nut and anchor head (drill bit)
Models of hollow bolts: diameters are 25, 28, 30, 32, 50, etc., thicknesses are 3, 5, 6mm, etc.
The length of the anchor rod can be customized according to customer needs.
Hollow Anchor bar are typically made of materials such as 40Cr, Q235, and 45# steel. Among these, 40Cr has the best performance and is not limited by geological conditions.
Previous page
Next page
Previous page
Next page
undefined
2023-01-13
Recommended product
Hydraulic Cylinder Piston Rod
JNM Group is a manufacturer and Supplier of honed tube, SRB tube,hydraulic cylinder barrel, honed pipe, cold drawn tube and chrome rod, chrome plated rod, hard chrome bar, hollow chrome tube, hydraulic piston rods, linear shaft. they are commonly used in hydraulic cylinders.
Chrome Plated Rod Manufacture
JNM Group is a manufacturer and Supplier of honed tube, SRB tube,hydraulic cylinder barrel, honed pipe, cold drawn tube and chrome rod, chrome plated rod, hard chrome bar, hollow chrome tube, hydraulic piston rods, linear shaft. they are commonly used in hydraulic cylinders.
hydraulic cylinder rod / chrome rod for hydraulic cylinder
JNM Group Manufacturers and Suppliers of chrome rods,chrome-plated rods, hard chrome bar, hydraulic piston rods, hollow chrome tube,they are commonly used in hydraulic cylinders.
Chrome Plated Piston Rod
JNM Group Manufacturers and Suppliers of chrome rods,chrome-plated rods, hard chrome bar, hydraulic piston rods, hollow chrome tube,they are commonly used in hydraulic cylinders.
Newsletter
Address
No.181,Financial Center, Dongchang Road, Liaocheng City, Shandong Province, China