2017年01月20日

Hollow bar for civil

Sinorock now manufactures and supplies a complete range of hollow bar products and technical services to the related industries,such as the civil and tunnelling industries.Sinorock’s manufacturing and supply capability includes:self drilling hollow bar, Duplex coating hollow bar system,Stainless self drilling hollow bar system,ect.These products are available in different range. Widely used in soil erosion, slope engineering, mining,
construction, tunnel, large cave supporting and restoration of engineering structure.
The necessity for self drilling hollow bars is increasing in today’s world. They are used in everything that you can imagine.The amount of self drilling hollow bars that is in use each day is a gigantic number and the thought of one company manufacturing all of these self drilling ground anchors is an impossibility. Not only do multiple self drilling hollow bar manufacturers take on the responsibility of supplying many different contractors and construction workers with self drilling hollow anchor bars every day but they also do custom fabrication as well.

All Sinorock self drilling ground anchor systems are equipped with state-of-the-art Taralog computers which provide readings of drilling and concreting parameters.Sinorock self drilling hollow anchor bar systems are built and designed in compliance with the standard ISO, and as a result, we offer superior in-house expertise in self drilling hollow anchor
bar testing (both static and dynamic). This is carried out in the earliest possible stages of the project to enable the client and Sinorock designers to adjust and refine self drilling hollow anchor bar construction pro-actively, rather than re-actively, later in the project.

  

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2017年01月16日

Purchase self-drilling anchor

What should we concern when purchasing self-drilling anchor ?
Experienced buyers may find there is a difference in the model types of self-drilling anchor among all suppliers.
Naming methods
Atlas MAI (now belongs to Orica) self-drilling anchors are identified by the combination of alphabets & numbers.
For instance,
R32N
R means the rope thread.
32 is the outer diameter of hollow bar.
N represents attributes of tensile strength. The other two are L (less) and S (strengthen).

MAI SDA Specifications
MAI SDA Specifications
Dywidag DSI names the hollow drill hollow bars as the format:
THREAD TYPE-DIAMETER-ULTIMATE LOAD
For example, R32-280, is equal to MAI’s R32N.
DSI Drill Rod SDA Specifications
DSI Drill Rod SDA Specifications
Ischebeck Titan and Williams Form’s IBO drill hollow bars are named by diameters.
Their thread forms are also unique.

Williams’ Unique Thread Form self drilling anchor
Technical documents can be downloaded at their official sites.
Williams Form Drill Rod Specifications
Williams Form Drill Rod Specifications
How much is self-drilling anchor bar?
It depends on length, strength, and weight.
Of course, quantity and size affect the end price.
Contact Sinorock to inquire latest price.
What is IBO self-drilling anchor?
SDA is an anchoring system can be used in tunneling industry and ground engineering for safer and faster production.
Sometimes it is known as IBO, drill injection anchor, self drilled hollow bar and so on.
It can be used as rock bolt, micropile or soil nail.
How much does self-drilling hollow bar cost per pound?
The anchor bar is not normally sold by the pound at hardware stores, and industrial applications tend to go by the ton.
Self-drilling anchor is not raw material, processing charges occupy 1/3 of the cost.
Onton masters the skills and technical ability to produce final hollow bars with excellent capacity, able to meet and ensure performances, in compliance with the EN 14199, EN 14490 and US ASTM F432, A615.
Does the threaded anchor comply with my requirements?
All of Sinorock hollow bar anchors fulfill the requirements of design following the European or American Standards.
Don’t worry about the new anchor bolts can’t match with the former couplers. All is based on drawing in standards.
Moreover, Sinorock provides free, customized samples.
Next time when you look for good quality self-drilling anchors, try to ask suppliers more questions not only price.
What would you think if a manufacturer doesn’t understand the standard requirements in your area?
In a word, product doesn’t lie.  

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