Self Drilling Anchor Bar
Classification:
Self Drilling Anchor Rod
Key words:
Self Drilling Anchor Rod
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Overview
| Color: | black |
| Finish: | Bright(Uncoated) |
|
| System of Measurement: | INCH, Metric |
| Place of Origin: | Shandong, China |
|
| Model Number: | R25 R32 R38 R51L R51N T40 T76 |
| Brand Name: | JNM |
|
| Diameter: | 12mm, 32mm, 25-76mm |
| Material: | Steel |
|
| Standard: | ISO |
| Capacity: | 200-1900KN, High Load Capacity |
|
| Application: | Building Construction |
| Size: | R25 R32 R38 R51L R51N T40 T76 |
|
| Ultimate load: | 280KN |
| Yield load: | 230KN |
|
| Type: | Hardware Tools |
| Length: | customized |
|
| MOQ: | 10pieces |
| Packing: | Custom Packaging |
|
| Certificate: | ISO 9000 | Delivery time: | 15-30days |
Supply Ability
Supply Ability 5000 Meter/Meters per Day
Packaging & delivery
Packaging Details Package in sea worthy
Port QINGDAO or Main Port in China
Lead time:
Quantity(meters) | 1 - 100 | 101 - 1000 | >1000 |
Lead time (days) | 10 | 25 | To be negotiated |
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 | |||
hollow anchor bar (or self-drilling anchor) is a specialized geostructural bolt used for soil and rock reinforcement. It features a hollow steel core and continuous external threading, allowing it to function as a drill rod, injection tube, and reinforcing member in a single operation.
Key Functions:
- Simultaneous Drilling & Grouting: Grout is injected through the hollow core while drilling, immediately stabilizing the borehole and bonding the anchor to the ground.
- Casing-Free Installation: Because it serves as its own drill rod, it eliminates the need for temporary casings in loose or collapsing soils.
- Adaptability: It is highly effective in challenging geological conditions like fractured rock, sand, and high-groundwater areas.
Components & Thread Types
- System Components: Includes a sacrificial drill bit (left in place), couplers (to extend length), anchor plates, and nuts.
- R-Thread (Rope): Conforms to ISO 10208 and is used for standard geotechnical applications.
- T-Thread (Trapezoidal): Features deeper teeth and a larger pitch, providing superior adhesive friction and higher load-bearing capacity for heavy-duty projects like micropiles.
Common Applications:
- Slope Stabilization: Preventing landslides by reinforcing unstable soil.
- Tunneling: Providing pre-support and crown stabilization in underground excavations.
- Micropiles: Transferring structural loads to deeper, more stable ground layers.
FAQ:
1. What materials are commonly used for anchor bolts?
Anchor bolts are typically made of materials such as 40Cr, Q235, and 45# steel.
2、Which material has the best performance?
Among these, 40Cr has the best performance and is not limited by geological conditions.
3. Regarding issues such as anchor bolt deformation, corrosion, and dimensional inconsistencies?
40Cr anchor bolts have stable performance, are galvanized for corrosion resistance, and although they are prone to rust, this does not affect their performance.
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2023-01-13
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No.181,Financial Center, Dongchang Road, Liaocheng City, Shandong Province, China