Self-Drilling Anchor Bolts
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Price:
Negotiable
- minimum:
- Total supply:
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Delivery term:
The date of payment from buyers deliver within days
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seat:
Beijing
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Validity to:
Long-term effective
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Last update:
2024-03-25 08:12
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Browse the number:
162
Company Profile
Shanxi Lanyuan Technology Co.,Ltd.By certification [File Integrity]
Contact:lanyuan(Mr.)
Email:
Telephone:
Phone:
Area:Beijing
Address:Beijing
Website:http://www.rockboltsolutions.com/ http://lanyuan.wuy123.com/
Product Details
Self-drilling anchor system are innovative and efficient construction components that combine drilling, grouting, and anchoring functions into a single integrated system. These rock anchor bolts are designed to simplify the installation process, reduce construction time, and enhance the stability of structures in various geological conditions. A self-drilling anchor bolt typically consists of several essential components, each playing a critical role in its performance:
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Threaded Hollow Anchor Bar
The threaded hollow anchor bar forms the core structural element of the whole self-drilling anchor system. It provides the necessary load-bearing capacity and is designed to resist tension forces. The thread pattern on the rod allows for easy attachment of drill bits, nuts, plates, and other components. Self-drilling anchor bolts can be categorized based on their threading patterns. Two common types include R-Thread Self-Drilling Anchor Bolts and T-Thread Self-Drilling Anchor Bolts.
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R-Thread Anchor Bolt Technial Data
 | R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S |
Outside diameter | 25 | 32 | 32 | 38 | 51 | 51 | 76 | 76 |
Internal diameter | 14 | 19 | 16 | 19 | 36 | 33 | 52 | 45 |
Ultimate load | 200 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 |
Yield load | 150 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 |
Tensile strength, | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
Yield strength, | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
Weight(Kg/m) | 2.3 | 3.2 | 3.6 | 5.5 | 6.5 | 8.0 | 16.0 | 19.7 |
Thread type | ISO 10208 | ISO 1720 | MAI T76 Standard | |||||
Steel grade | En10083-1 (Alloy structure steel) | |||||||
Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical. |
R thread anchor bar or called rock rod, soil nail, which is a kind of threaded hollow bar, bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented by MAI on 1960S to solve the low construction speed on complicated underground works, nowadays; it is very popular all around the world.
Thread size: R25, R32, R38, R51, T76.
Thread standard: ISO10208, ISO1720 etc.
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T-Thread Anchor Bolt Technial Data
Bar Type | Outside Diameter | Inside Diameter | Cross section | Ultimate Load | Yield Point | Weight | Thread Left/ |
30/11 | 30 | 11 | 446 | 320 | 260 | 3.3 | Lift or right |
30/14 | 30 | 14 | 395 | 260 | 220 | 2.9 | Lift or right |
30/16 | 30 | 16 | 382 | 220 | 180 | 2.7 | Lift or right |
40/16 | 40 | 16 | 879 | 660 | 525 | 7.0 | Lift or right |
40/20 | 40 | 20 | 726 | 539 | 430 | 5.6 | Lift or right |
52/26 | 52 | 26 | 1337 | 929 | 730 | 10.0 | Lift or right |
73/53 | 73 | 53 | 1160 | 1630 | 970 | 12.3 | Lift or right |
73/56 | 73 | 56 | 1094 | 1414 | 785 | 11.1 | Lift or right |
73/45 | 73 | 45 | 2265 | 1630 | 1180 | 17.8 | Lift or right |
T thread anchor bar surface with a trapezoidal thread, this design of connection is much stronger and reliable when compared with rope thread, we supply full sizes from T30 to T103.
Thread size: T30, T40, T52, T73, T103, T127, T130.
Thread standard: ISO10208, ISO1720 etc.
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Anchor Plate
 | R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S |
Dimention(mm) | 150*150 | 200*200 | 200*200 | 200*200 | 200*200 | 250*250 | 250*250 | 250*250 |
Thickness(mm) | 8 | 10 | 12 | 12 | 20 | 40 | 40 | 40 |
Hole diameter(mm) | 30 | 35 | 35 | 41 | 60 | 60 | 80 | 80 |
Weight(KG/PC) | 1.4 | 3 | 3.7 | 3.6 | 8.8 | 18.5 | 18 | 18 |
Cold deformed with geometry |
Anchor Coupling
 | R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S |
Outside diameter(mm) | 35 | 42 | 42 | 52 | 63 | 63 | 95 | 95 |
Length(mm) | 120 | 145 | 160or190 | 180 | 180 | 200 | 200 | 200 |
Weight | 0.45 | 0.7 | 0.75 | 1.4 | 1.7 | 1.9 | 6.4 | 6.4 |
Machined steel coupling middle stop |
The hollow bar is continuously threaded, it can be cut and coupled anwhere along its length.
The coupling enables direct end-to-end energy transmission between each bar, reducing losses and ensuring maximum percussive engergy at the drill bit.
Drill Bit
 | R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S |
diameter(mm) | 41,51 | 51,76,90 | 90,100,110,115,130 | 130,150,160,180,200 | ||||
Hardened cross bit | Hardened cross bit for loose to medium dense condition with small boulders. | |||||||
Tungsten cross bit | TC cross bit for soft to medium rock for mations | |||||||
Hardened button bit | Hardened buuton bit for unconsolidated rock with boulders. | |||||||
Tungsten carbon button bit | Button bit with TC inserts for medium rock for formations. | |||||||
Hardened arch bit | Hardened drill bit with optimized geometry for uncon solid dated soil | |||||||
Tungsten carbon arch bit | TC drill bit with optimized geometry for soft to medium rock formations. | |||||||
Hardened drop center bit | Hardened cross bit for loose to medium dense ground conditions | |||||||
TC drop center bit | TC drill bit for soft to medium rock formations. | |||||||
Casting clay bit | Casting clay bit with optimized geometry for very soft to soft caly. | |||||||
Machined steel bit or Casring steel bit |
The sacrificial drill bit is an important part of the self drilling anchoring system.
Choose suitable bits according to different soil type.
Anchor Nut
 | R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S |
Key size(mm) | 41 | 46 | 46 | 50 | 75 | 75 | 100 | 100 |
Length(mm) | 135 | 45 | 45 | 55 | 70 | 70 | 80 | 80 |
Weight(kg/pc) | 0.25 | 0.35 | 0.35 | 0.5 | 1.55 | 1.55 | 3.6 | 3.6 |
Machined steel nut or casting steel nut |
The hexagonal and spherical nuts are made from high precision steel (40Cr,HRC 20-25) to meet the stringent demands on anchor specifications and the daily uses of reinforcement work.
All nuts exceed the ultimate strength of the rod.
http://www.rockboltsolutions.com/
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