2016年08月29日

Powerful hollow bar

Hollow bars are useful in many different applications. There are also many different types

of hollow bolts available in many different designs. It might seem a little confusing at

first because there are so many to choose from but in the end all hollow anchor bolts pretty

much have the same function. They are meant to support and anchor whatever structure they

are attached to, to another surface.Hollow bars are used for this reason all over the place

and you be surprised at how often they are used.
Sinorock hollow anchor bar system are fully threaded drill rods with drill bits which will

advance the self-drilling anchor bolt into the required depth. The hollow anchor bar will be

grouted in place, which will create the steel reinforcing of an anchor.Sinorock hollow

anchor bar can be used as tie down anchors, deep foundation, rock anchors, soil nails and

micropiles in lots of difficult applications.Sinorock hollow anchor bar is a valuable and

multi-functional additions to engineers. With the use of Sinorock hollow anchor bar,

production rate is much improved, compared with solid bar anchors. Hole casing system can be

avoided, especially in low headroom.
  

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2016年08月26日

Sinorock drill hollow bar

Sinorock Self-drilling hollow anchor bar system are fully threaded drill rods with drill bits which will advance the self-drilling anchor bolt into the required depth. The self-drilling hollow anchor bar will be grouted in place, which will create the steel reinforcing of an anchor. Self-drilling anchors can be used as tie down anchors, deep foundation, rock anchors, soil nails and micropiles in lots of difficult applications. Self-drilling anchor is a valuable and multi-functional additions to engineers. With the use of drill hollow bar , production rate is much improved, compared with solid bar anchors. Hole casing system can be avoided, especially in low headroom.
Sinorock self drilling hollow bars are available in various diameters, steel grades and various levels of complexity. The most sophisticated self drilling hollow bars in the Sinorock product range is the anchor bolt with expansion shell at the tip and spherical seating on dished stainless steel plates at the active end. The self drilling hollow bars come together with a suitable grouting cup to facilitate grouting of the stressed bolts. Less complex rock nails for strata control can be supplied as slash cut mild steel bars with black steel plates and hexagonal nuts.
Sinorock make our self drilling hollow anchor bolt products with a high quality alloy, so they are strong and reliable.Sinorock designs, manufactures and supplies self drilling bolts and technical service solutions to the global mining market.Sinorock’s self drilling hollow anchor bolt system has been a great success in the market.
  

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2016年08月23日

Hollow bar for projects

Sinorock 's self drilling hollow bar systems are in use around the world, securing famous structures, large dams and retaining walls, holding down underpasses and underground structures,stabilising wind turbine towers and preventing landslides.
Sinorock 's self drilling hollow anchor bar is a sort of anchor bolt that makes grouting and anchoring can be done simultaneously,it can also provide anexcellent effect on various kinds of complex conditions,such as soft soils,loose rock,fractured zones and so on.
Self drilling hollow anchor bar come with couplings, different types of bits, centralizers, nuts and anchor plates, and also several accessories for injection.Our range of Self drilling hollow anchor bar has the following threads : R25, R32, R38, R51, T30,T40,T52 and T103, with several inside diameters.
Sinorock is a ISO 9001:2000 accredited hollow bar company that places emphasis on quality work and continuous improvements to its products. A quality management system is in place to ensure that customers receive safe-to-use products and excellent value for their money.
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2016年08月12日

R&T thread hollow bar

For R thread products and T thread products, the thread shape is different.Moreover, in construction T thread hollow bar has better adhesive force with cement. The common length of self drilling anchor bolt is 3m/4m/5m/6m, while we can do as customer requires.For hollow bar, the steel we commonly used for R25 is Q345. The Steel we commonly used for other sizes like R32/R38/R51/T30/T40/T76 is 40Cr which European name is 40Cr4. The steel we commonly used for coupler is 40Cr which European name is 40Cr4. The steel we commonly used for forged nut is 45# which European name is ZK45. The steel we commonly used for casting nut is QT500 Q235 which European name is SJ235. The steel we commonly used for R25/R32/R38/R51/T76/T111 plate is Q235 which European name is SJ235. The steel we commonly used for
T30/T40/T52/T73/T103/T127/T130 plate is 45# which European name is ZK45. The steel we commonly used for casting drill bit is 42CrMo. The steel we commonly used for tungsten carbide drill bit is 40Cr. The steel we commonly used for centralizer is QT500. All the above steels are commonly used in the production of our self drilling anchor bolt products, if you have any specific requirement, we can also provide customized products for you.
Since self-drilling hollow anchor bar construction is strong technical work, each working procedure must be meticulous operation,otherwise it will effect the whole piece of anchor rod construction quality because of a process of negligence .Therefore, the operator must be higher technical quality, a clear division of responsibilities.
The self drilling hollow anchor bar combines drill bolt and hollow rod together and it is widely used in various engineering conditions including weak rock,loose soil,decayed rocks and unconsolidable earth mass and so on.
Sinorock has established a series of strict quality control system which has been adopted in the whole manufacturing process.Each accessory of hollow threaded bar system will be detected strictly in our factory laborary to warrant all of the hollow threaded bars delivered to clients are qualified and safe.
https://hollowbars.pressbooks.com/part/selecting-self-drilling-anchor-bar-can-greatly-simplify-the-process-of-anchor-construction/  

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2016年08月05日

Hollow bar saving project time

Sinorock stands out from other self-drilling hollow bar manufacturers rapidly these years. We are a professional self-drilling hollow bolt manufacturer, which has the ISO 9000 quality certification and CE certification. It's mainly used in the mineral exploration, tunneling and slope stabilization project.
In comparison with other hollow bar manufacturers, many customers speak highly of our products and service. Now our customers are distributed in many countries including India, Pakistan, Nepal, Malaysia, etc. In the future, we will continue do our best help customers finishing the projects safely and efficiently.
Sinorock hollow anchor bar system enables drilling and grouting in one operation, making much saving in jobsite and project time.

1.The type of hollow anchor bolt: This is the best onstruction program to adjusted to the broken country rock, complex geological conditions and weak surrounding rock, highland stress large deformation, because it avoids the collapse of the construction of the hol affected.

2. The design of hollow anchor bolt, make the bolt to achieve a grouting pipe function, avoiding the mortar loss that traditional mortar grouting construction process caused .

3. Full grouting, grouting pressure can achieve, improve project quality.

4. As the role of the various parts, the center of the rod is very good, the mortar can be full-length bolt body wrap, to avoid the risk of corrosion, and achieve long-term support purposes.

5. Easy installation, no on-site processing thread, you can easily install plate and nut.
Sinorock is an ISO Certified Nationwide Manufacturer of hollow anchor bolt carrying a wide range of Standard Parts as well.Sinorock also has a complete team offering the service from site construction and anchor selection to technical adjustment.
  

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2016年08月03日

hollow bar for hydropower

Self-drilling hollow anchor bar is being increasingly used for hydropower plant and dam built projects. In terms of the geological condition of this power house, both the sandstone and siltstone are easy to be weathered. Then it’ll be difficult to make holes in the weathered rock. Self-drilling hollow anchor bar has a great advantage over other anchoring systems under the conditions of weathered rock, fracture zones, loose soil and backfill ground. It can effectively solve the problems of hole collapse and drilling holes because of the integration of drilling, grouting and anchoring as a whole. Meanwhile, the application of self-drilling hollow anchor bar can guarantee the construction quality and has great social benefit.
The working mechanism of Self drilling hollow anchor bars
First,Self drilling hollow anchor bars using the way of inserted into the hollow rod and later perfusion grout to anchor from the inside to the outside in the bore of the hollow rod body and outside the port holes of anchor have pulp tampon and pallets, so that it can effectively prevent the slurry spills, to ensure that the rod and the wall of the hole grouting full, so that we can pass along the full length of bolt shear stress and tensile stress, ensure rock anchoring within the range to get reinforcement.If necessary, you can also implement pressure grouting, The slurry was percolating into the fractured rock mass surrounding the rod , so rock anchoring within the range has been further reinforced.
After grouting solidification, available to use torque wrench to tighten the nut, providing 10KN pallet resistance around the bolt ends in the formation and mechanical anchors have similar spherical pressure area, which can be controlled after the initial deformation of rock excavation, to prevent broken rock fall.
Sinorock supplies self-drilling hollow bar , which is a finished steel product used to strengthen concrete for large-scale construction projects. Our products help make bridges, highways, major sports stadiums, high-rise buildings, and other large structures sturdier, safer, and more durable across the vast world’s market.

http://hostedpbxinfo.net/the-amount-of-self-drilling-hollow-bar-is-increasing-day-by-day-in-tunneling-projects/


  

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