Self Drilling Rock Bolt (SDRB) system provides higher tensile strength than conventional solid bolts

Self drilling rock bolt can be used for permanent support project in medium and good rock condition and foundation support. By doing pressure grouting, it can help to reinforce the broken rock mass, improve the rock mass and prevent the corrosion from underground water and then reach the purpose of supporting.
Self-Drilling rock bolt is used to attach objects or structures to concrete. There are many types of Self-Drilling rock bolts, consisting of designs that are mostly proprietary to the manufacturing companies. All consist of a threaded end, to which a nut and washer can be attached for the external load.
A new Self Drilling Rock Bolt (SDRB) system has been developed which uses a pumpable resin system for full column resin encapsulation for immediate roof and rib support. A new drilling and injection system has also been developed to enable fast and efficient bolt installation.
This new SDRB provides higher tensile strength than conventional solid bolts, and also provides a load transfer capacity that is almost double that of conventional bolts. This new SDRB uses low viscosity pumpable resin to ensure full encapsulation right down to the collar.

This not only provides a high load transfer capacity over the entire
length of the bolt, but also reduces the potential for bolt corrosion and locks the bearing plate and mesh in place at the borehole collar.

It will also reduce the amount of water inflow from the roof in mines which have water problems. The advantages of this alone are considerable.
The installation system is also new and consists of a new drill chuck and resin pump which can be retro-fitted onto a continuous miner.

Production versions of the installation system can have full PLC control to further refine bolt installation to have full semi-automatic bolt installation. In addition, resin cure times can be adjusted to suit mine roof conditions such that the resin cure time coincides with full resin encapsulation of the bolt to further reduce installation cycle time.
The current SDRB installation cycle has not yet been fully optimised, and further reductions in bolt cycle time are possible. Nevertheless, the current SDRB installation cycle times for a 2m long bolt are typically 60 seconds,  compared to 150 seconds for a conventional bolt in the same roof.
The full benefits of SDRB technology to the coal industry will only be obtained if these bolts are installed at the face. In the immediate future, this requires retro-fitting the SDRB equipment onto existing continuous miners, and some miners are better suited to this application than others.
This new SDRB uses semi-automatic bolt installation with manual placement of the bolt into the drill chuck, which greatly simplifies the whole installation process. Although a longer term goal would obviously be to have full bolting automation, with bolt handling into the drill chuck to remove operators from unsupported roof. Consideration needs to be given not just to the bolting process itself, but also to the materials re-supply to the machine. This will be essential if high roadway drivage rates are to be achieved.
Longer term the coal industry should encourage machine manufacturers to design and produce machines that are better suited to SDRBs and to full bolting automation.

The length of self drilling anchor affects the grouting self drilling anchors

Since the total length of grouting self drilling anchors with safe and reliable, simple construction and low cost, they are widely used in slope engineering. When self drilling anchors reinforced slope, depending on the interaction between surrounding rock mass and self drilling anchor transmitting rod tension, making themselves get reinforced in geotechnical engineering, limiting the deformation, and improving stress state of the mechanical parameters of rock mass and to maintain stability. Due to the self drilling anchors load transfer mechanism is very complicated, so far still assumes that the lateral resistance distribution patterns in self drilling anchors  design is uniform distribution.

But a large number of measured results show that it is unreasonable according to uniform distribution pattern calculated. In recent years, with the development of computer technology, numerical simulation methods are widely used in geotechnical engineering, adopting double spring self drilling anchor element, the establishment of a model of Highway slope was simulated excavation process of the rock bolts reinforcement effect.
While the combination of the long self drilling anchor and the short self drilling anchor can foster strengths and circumvent weaknesses. The supporting effect is definitely better.


In the combining support of the long self drilling anchor and short self drilling anchor, the former on one hand controls the deformation of
surrounding rock except the reinforced composite arch. On the other hand, it can reinforce the combination arch structure to hang on the stable rock for coordinate deformation of surrounding rock.

Relating to the short self drilling anchor, it can reduce the hulking deformation of the rock and the further damage of the fracture by limiting the deformation of the near area and the development of the fracture surface. The short self drilling anchor can also form reinforced composite arch structure which has a certain bearing capacity near tunnel surrounding rock. All these can strengthen the integrity and stability of the surrounding rock effectively.
http://www.neighbour123.com/blog/show/coal-roadway-rock-bolt-design-technology-of-sinorock

Sinorock have a variety of anchor bolt products for your choice

There are many kinds of anchor bolt that has been widely used in mining,tunneling,slope stabilization,foundation support,railway station and it is also extensively applied to some moisture environment like wharf,bay,coast,band and other working constructions.
I would like to introduce some of its kind and the application has been mentioned above.
1)Self drilling anchor bolts:
 Self drilling anchor bolt,which is made of reinforced concrete steel material,it can combine anchoring,drilling,grouting as a single operation.It is a reliable and convenient anchoring system which is applied in complicated geological conditions for rock support work. It is widely used in the railway system, metro project, etc.
2)Stainless anchor bolts:
It is also used for chemical industry and infrastructures if important equipment which requires high anti-corrosion quality.
3)Duplex coating anchor bolts:
Thick hot-dip galvanizing coating, dense combination, high anti-corrosion and good toughness.
4)Fiberglass anchor bolts:
It is made of high quality pultrusion resin, alkali-free glass fiber yarn and other auxiliary materials and especially convenient and safe for fully-mechanized coal mining supporting.
5)Friction bolts:
Frction between the rod body and borehole is so strong that there is no need for the operator to warry about the effect of the hollow steel bar in the constructions.Friction  bolt system is a professional tool for the supporting of mine, tunnel, slope, underground culvert roof(mainly for integral rock roof).
https://sinorockbolts.wordpress.com/2015/11/27/sinorock-anchor-bolt-systems-were-used-by-the-vast-number-of-engineer/

Sinorock self drilling anchor bolts includes unusually long lengths and large diameters

Sinorock is the leading and most innovative company in the self drilling anchor bolt industry. Our broad range of R thread and T thread self drilling anchor bolts includes unusually long lengths and large diameters. Our quality products and superior customer service have made Sinorock the supplier of choice to some of the most notable construction projects in the world.
Sinorock is your company's complete source for all your self drilling anchor bolt need.Our key values are service, honesty and integrity in all our business dealings. Please contact our staff, many of which have more than ١٠ years of experience in the anchor industry. Put their knowledge to work for you.The staff of Sinorock has an extensive experience and background in Micropiles, Pipe Piles, Soil Nailing and Shotcrete, Soldier Pile, Tiebacks, Drilled Shafts, Tie-down Anchors, Rock Anchors, Rock Bolting, Scaling, and Dewatering. At Sinorock, we
take pride in our ability to see to completion Design Build projects as well as Owner Designed projects under the simplest of conditions to the most difficult. We encourage our clients to involve us in feasibility studies, budgeting and value engineering in an effort to minimize costs, maximize project efficiency as well as profitability. Our goal is to bring your projects in safely, under budget, and on time.
Our staff have successfully completed a variety of self drilling anchor bolt projects throughout the world. These projects have covered a wide array of projects including residential projects up to large scale commercial projects.
http://sinorockbolts.0sites.com/n1045-advantages-of-sinorock’s-self-drilling-hollow.html

The world leader in development of innovative rock bolt system - Sinorock

Since 2011,Sinorock has been a world leader in the development of innovative rock bolt system.All quality made products add value to your business and deliver rapid returns on your investment.Sinorock rock bolt systems are built to the highest standards, with the added value of simplicity.
The many years of continuous research and development ensures the evolution of all our products to deliver a range of World Class attachments and accessories backed by some of the best after sales and technical support in the industry.
All of this comes packaged as standard at that attractive Sinorock rock bolt price.
Sinorock is the only Construction Products business to deliver premium quality products, supported at the highest level, at prices you have come to expect from us.
With a commitment to producing products made from the finest materials, which are simple to operate and maintain, Sinorock rock bolt systems provide solutions for the majority of your attachment needs.
A passion for safely and reliably serving our customers, employees and communities with integrity and continuous innovation, is at the heart of everything we do.To be our best, we want our employees to be their best, through challenging career growth, job fulfillment, and ongoing opportunity.Having the best people in the industry gives us our competitive edge.
Our intention and desire is to see you profitable as a company, as you cannot continue in business without that. We are a small family operation ready to help you in any way that we can. We love our customers and truly wish for them to succeed. Our prayer is to live in eternity with those we know and love.
If you value hard work and the opportunity to grow professionally, we want to hear from you.

http://sinorock.blogcu.com/sinorock-has-a-corporate-profile-of-being-the-world-s-leading-pr/20238182

Powerful bolt manufacturer - Sinorock developed quickly in anchor bolt field

Sinorock is so powerful among so many bolt manufacturers,why Sinorock is develop so quickly in the anchor bolt industry? And why so many structures incorporate our anchor bolts into their construction,This is not an accidental phenomenon.
We take pride in our commitment to operational excellence, superior service and new product development that has guided the company through years of growth by meeting the ever-changing needs of the construction industry. Focusing on the needs of our end-users enables us to customize our product offering and service based on their requirements.
Under the great efforts of our team, we have already provided anchor bolts to many highway projects, water conservancy projects, railway projects.

Our anchor bolts has been exported to many countries. We have established long term business relationship with our customers both at home and abroad.
To ensure efficient logistic technical support, Sinorock now is recruiting agents all over the world.With a constant drive for innovation, significant investment is allocated to Research Development to guarantee Sinorock’s remaining at the forefront of self drilling anchor bolts reinforcement technology.Sinorock attaches great importance to R&D in order to continuously provide high quality products for its customers.
http://sinorockanchors.page.tl/Sinorock--take-charge-of-the-quality-of-self-drilling-anchor-bolt.htm

Look no further than Sinorock is the proper anchor bolt manufacturer for construction

Here,If you see any inclination of lack of expertise, poor customer service, or low-quality products on your search for a anchor bolt manufacturer, stay away. These three qualities are far too important for you to ignore.
If your anchor bolt manufacturer doesn’t have staff members who fully understand the intricacies that come with designing and creating anchor bolts, you might find yourself with a product that is unusable.
A anchor bolt manufacturer with bad customer service will make you feel uneasy and frustrated, and you might end up with a product that doesn’t work for your project, which can cost you money and time in the end.
Look no further than Sinorock meet the all your need,high quality anchor bolt products,good service,professional experience,etc.As a anchoring company of employee owners, we work with the unity of family and the determination of business owners. We take greater responsibility for quality, safety, production and innovation because we share directly in the Company’s success. Our customers are happy and satisfied because we have a greater stake in keeping you that way.

First,Our company is made up of positive, honest and energetic team players. We don’t keep people with good skills, but a bad attitude.
Second,We recognize that the road to success is paved with mistakes and failures. To be successful, we must focus on the objective and not be afraid of failure.
Third,We are here for our customers, who want a quality product, at a fair price with a timely delivery.Our goal is to keep your project on time and working with our customers to meet their requirements.
Forth,We treat each other as we would like to be treated, with honesty, respect, trust, fairness and care.Whether you need anchor bolts for a large project or you need a small quantity, you can trust us to deliver the best.
Fifth,Sinorock utilizes an advanced quality management system that includes testing at every stage of production to ensure that each product meets industry and customer specifications along with our own rigorous manufacturing standards.

http://www.portalblogueros.com/sinorockbolts/note/26/a-variety-of-anchor-bolts-for.html

Self drilling hollow rock bolt is one of useful supporting method

Self drilling hollow rock bolt is a kind of fully thead hollow bar.Self drilling hollow rock bolt combines drill pipe with grouting pipe.It is a multifunctional drilling, grouting and anchoring, etc of supporting high-tech products.The length of the flexible rod body with extended added features, not only suitable for railway, tunnel, mine, water conservancy, dam, bridge foundation, the foundation of the high-rise building and building reinforcement engineering;But also for pre-suppot project ,radial suppot project,slope stabilization,soil nail wall,back pull anchor rod retaining wall and other rock supporting work.
Due to the support of Self drilling hollow rock bolt is one of the important supporting method of coal mine roadway, especially with the constant improvement and practice of anchor bolt support technology, for coal mining, the safety and
reliability of widely attention and promotion.
In Sinorock, we have a lot of similar products. We are also the largest production base of anchor in China and have passed the ISO9001 quality management system certification.Our self drilling hollow rock bolt systems are designed to make mining safer. Thanks to our local presence around the globe, we can satisfy your needs for ground control quickly and efficiently - no matter where you are.We provide internal quality control testing as well. threading inspections are performed right at the work station. Quality is not taken for granted. Our experienced staff undergoes extensive training and is able to guarantee that each manufactured product conforms to International anchoring Institute guidelines.
http://forum.rangameshop.com/blogs.aspx?ID=395

As the self drilling anchor manufacturer - Sinorock is the strongest comprehensive strength one

In China,Sinorock is the strongest comprehensive strength one among so many professional self drilling anchor manufacturer.We deliver quality products, superior customer service, advanced technology, and real solutions to the mining and tunneling industries. Our company has been adhering to the concept of “people-oriented, customer supremacy, development and innovation”.

We are able to provide our customers not only the highest quality products at the most favorable price, but also the most reasonable suggestion of equipment.Choose us for your projects,you will not be disappointed.

Sinorock self drilling anchor can be used as a choice for pre-tensioned anchors in loose or collapsing soils without the need for a casing. A free length must be installed onto the anchor if the project specifications call for a pretension load to be applied from the bond length. Please consult with a Sinorock specialist seller for your purchasing requisition.
Our goal at Sinorock is providing our customers with the highest quality, state-of-the-art self drilling anchors and services in a timely and efficient manner. To achieve our goal of providing outstanding service, our employees work as a team to meet customer's needs. We work hard to exceed customer expectations in meeting their delivery requirements, thereby assisting them to continuously improve their production with minimum interruptions.
http://www.openbroadcast.de/article/411285/believe-that-sinorock-is-your-true-choice.html

The reason why Sinorock gradually grow up to be a world-class bolt manufacturer

This is the reason why Sinorock gradually grow up to be a world-class bolt manufacturer.
Technical support
Sinorock’s philosophy is to deliver the highest quality at every stage of the service, from initial connection design to installation guidance. Experienced Engineers will design your connection free-of-charge to ensure a hassle-free specification process.
CE marking
Continuing a proud heritage as the pioneer of anchor bolt systems,Sinorock further demonstrates its commitment to quality manufacturing and transparency of product performance, by increasing the number of independent accreditations to include CE Marking.Sinorock CE Marked products create additional security for Engineers, Architects and Specifiers as product performance is tested and confirmed by a third party to meet a standard, renowned on a European scale.
Sustainable construction
Sinorock creates social, environmental and economic benefits in  construction, supporting what Sinorock anchor bolt system refer to as Sustainability’s ‘triple bottom line’.
In comparison to traditional anchooring methods, the fundamental benefits of a Sinorock anchoring solution include a rapid installation, significantly reduced labour costs, and the preservation of steelwork integrity and coatings.
http://plaza.rakuten.co.jp/lysinorockbolts/diary/201509100000/

Sinorock -Emphasis on anchor bolt system

Sinorock is known as a high quality and reliable service provider for the design and supply of anchor bolt systems to the construction industry for facade applications.
The main advantage of Sinorock is the ability to custom design anchor bolt systems and to provide fast production to meet the time restraint requirements of projects. The design and supply is done in accordance with international standards and more importantly with our customers’ expectations.
Sinorock works hard to be a reliable and satisfactory service provider for anchor bolt systems design and supply. A satisfactory service is recognized as the means of offering complete technical support to our clients with maximum flexibility in production and the fastest possible delivery times.
With approximately 10.000 sqm area of production halls, Sinorock is equipped with more than 100 work stations and has a monthly production capacity of approximately 300 tons.

Throughout the years, production techniques and methods have been improved to achieve higher quality and productivity. Sinorock today implements modern technology in the production of self drilling anchor bolt systems in order to meet the requirements of the industry.

The factory is equipped with perfect equipment.There is also an in house electro galvanizing unit where 12 micron thick zinc coating on mild steel is made. Hot dip galvanizing with over 50 micro thick zinc coating is made by pre-qualified sources outside the factory.

Emphasis has also been given to automation in which self drilling anchor bolt production and lower costs are achieved through higher efficiency. Sinorock is able to design and build machine parts, dies and tooling in house for achieving fast and flexible production of customized items.
http://www.shoehunting.com/collections/quality-anchor-bolt-manufacturers-understand-the-demand-of-unique-proj/

Sinorock makes great efforts on quality of the anchor bolt

Sinorock,due to it makes great efforts on quality of the anchor bolt.So it becomes the leading anchor bolt manufacturer from China.These years we put in time and energy into these fields.
Sinorock continues to invent products and provide solutions that allow dealers and professionals in the field of engineering to access some of the most inaccessible products and gain strong buildings.Sinorock's mission is to create innovative solutions, tools or services, that help people progress in complicated environments. Our goal is to continuously strengthen our expertise in these two areas.
Sinorock has the supreme quality
We offer our customers a quality product at affordable rates.At the same time,Sinorock will assess your engineering's individual needs to create organized solutions that provide you with a better, more cost-effective procurement plan.
Sinorock has large stock
Sinorock provides high-quality, nonstandard anchor bolts .Many items are found to be “in stock” and ready for immediate shipment to accommodate critical schedules. Sinorock responds to our customer’s needs by providing custom fabricated anchor bolts that meet their fabrication and delivery requirements.
Sinorock can supply everyone, from trading over the counter to big engineering companies, including government departments and the private company. We offer professional advice across all industries and sell single anchor bolts up to bulk amounts.
We deliver to all the metropolitan centres in and out of China and we assure you that "We do go the extra mile for our customers".
Rest assured knowing your world is held together by Sinorock.
Browse our Products Range to view a detailed list of all Sinorock products.
You can also send us an enquiry about any product that you are searching for.
http://sinorockbolts.bloggets.net/sinorock-is-outstanding-in-competition-anchor-bolt-manufacturer/

Sinorock is to be the No. 1 manufacturer and exporter of self drilling hollow bar

Sinorock is to be the No. 1 manufacturer and exporter of self drilling hollow bar in Asia.Sinorock has set up a good reputation within our supplier chain through long-term cooperation.
Sinorock, which was established in 2011, is specialized in manufacturing of rock reinforcement products. It has grown up to a leader exporter of rock reinforcement products in China, and distributors have been set up in many countries and regions.
Our vision:
Sinorock aims to be a global brand in the field of geotechnical anchoring.
Our mission:
Sinorock is devoting itself to providing one-stop rock anchoring solution,which is safe,efficient,energy-saving and environment friendly,for global geotechnical anchoring projects.
Our core values:
Innovation,Profession,Responsibility,Efficiency
Our target for business:
-    To be a professional manufacturer of self drilling hollow bar products.
-    To deliver our customers with best quality products on most competitive prices.
Our commitments for our customers:
-    Super and stable quality. Strict quality check system provides us guarantee for this.
-    Competitive prices. Continuous investment on technology innovation returns us continues improvement      on technology and cost-control.
-    Good delivery term. Spacious plant, warehouse and stocks ensure fast delivery.
-    Experienced on packing and container loading. It delivers customers safe and well packing      transportation as well as easier unloading.
-    Technology consultancy by specialist engineers.

https://sourceforge.net/u/lysinorockbolts/wiki/Sinorock%20specialized%20in%20self%20drilling%20hollow%20bar%20over%204years/