Description:
1. high quality self drilling hollow grouting rock bolt2. Common groutable
3. Stainless steel anchor bar
4. R thread
Features of high quality self drilling hollow grouting rockbolt
1.Itis easy to penetrate various rocks.
2.Itcan be elongated by using couplers.
3.Unnecessaryto be pulled out.
4.Thehollow bar can be used as grouting channel.
5.Drilling,grouting and anchoring can be finished at the same time.
Application of highquality self drilling hollow grouting rock bolt
• TunnellingGround engineering
• Radialbolting • Slope stabilization
• Forepoling• Micro injection pile
• Facestabilization • Temporary support anchor
The detailed informationabout the Sinorock self drilling anchor bolts series can be seen asfollows:
Size | Weight kg | OuterΦ mm | InnerΦ mm | Crosssection mm2 | Ultimateload KN | YieldLoad KN | TensileStrength N/mm² |
R25N | 2.3 | 25 | 14 | 290 | 200 | 150 | 520 |
R32L | 2.7 | 32 | 22 | 340 | 220 | 180 | 530 |
R32N | 3.4 | 32 | 18.5 | 430 | 280 | 230 | 530 |
R32S | 4.1 | 32 | 15 | 520 | 360 | 280 | 540 |
R38N | 6.1 | 38 | 19 | 770 | 500 | 400 | 520 |
R51L | 7 | 51 | 36 | 890 | 550 | 450 | 510 |
R51N | 8.4 | 51 | 33 | 1070 | 800 | 630 | 590 |
T76N | 15 | 76 | 51 | 1900 | 1600 | 1200 | 630 |
T76S | 19.7 | 76 | 45 | 2500 | 1900 | 1500 | 600 |
Note: | Thread:Left orRight | ||||||
Steel grade:Acc.to EN 10083-1 | |||||||
DeliveryLength(m):1~8m | |||||||
Threadbar anchors
Thread bar anchors are generally usedto
1.Anchor support structures for excavations such as sheet pile walls,soldier piles and lagging, drilled piles and slurrywalls
2.Counteractuplift forces in structures subjected to buoyancy and lateralloads
3.Transferexternal forces to the ground; e.g. wind, earthquake
4.Stabilizeeccentrically loaded foundations
5.Stabilizematerial or excavated slopes.
Featuresand advantages of thread bar anchor
1.Simpleand rugged
2.Positiveanchorage
3.Easyto Splice
4.CorrosionProtect System
a:Hot-dipGalvanizing Corrosion Protect. We can do it according to EN ISO1461.
b:Duplex Coat System:Duplex Coat = Hot-dip Galvanizing Epoxy PowerCoating
Fiberglass Bolts
Range of application
Comparedwith aluminum or steel, glass fiber reinforced plastics (GRP) haveadvantages that can be traced to the properties of the compositematerial: High resistance to corrosion and higher specificstrength. Depending on the application and at constant load, a GRPbolt can yield a high weight reduction.
Theapplication of glass fiber reinforced plastics (GRP) offers various possibilities. In cooperation with FiRePInternational AG (Switzerland), Sinorock offers a range of GRPbolts that are manufactured using the latest technologies. Thematerial offers high mechanical solidity and favorable long-termbehavior for anchor technology.
Luoyang Sinorock Engineering Material Co., Ltd. is a professionalself-drilling manufacturer, which has the ISO 9000 qualitycertification and CE certification. It''s mainly used in themineral exploration, tunneling and slope stabilizationproject.
Sinorock adopted the advanced production equipment and strictlyquality control system, to ensure that we can provide customerslow-cost, and high quality construction materials, so that theequipment used in the construction is safe and efficient.Meanwhile, we devote ourselves to provide clients with a one-stopsolution for ground anchor.


