- Comunicati pubblicati - metiscn - Comunicati pubblicati - metiscn Sun, 24 Jan 2021 20:12:42 +0100 Zend_Feed_Writer 1.12.20 ( Hollow bar anchors are installed in micropiles or piers to provide additional strength and support Wed, 14 Dec 2016 11:49:36 +0100 metiscn metiscn Metis offers several solutions for anchoring retaining walls. The right solution depends on the project. Factors to consider here are the length and depth of the sheet pile wall, the soil situation, and whether the sheet pile wall is a temporary or permanent.

Self drilling hollow anchor bar is a hollow, thick-walled, central drilling rod with a drill bit at the top. The hollow rod and the drill bit allow flushing or simultaneous drilling and grouting. The system is modular, meaning that the most appropriate configuration can be put together to suit on-site circumstances and the forces that apply. Because of the coarse external trapezium shape tread the rod can be shortened or extended if necessary, to create the desired length. The trapezium shape tread also ensures optimum adhesion between the cement grout and the self drilling anchor. All parts of the system can be supplied with or without surface treatment.

Comprised of the hollow anchor bar, drill bit and other fittings,the Self-drilling Anchor can enable the hole drilling and grouting to be done in one single cycle. It can eliminate the use of a casing to support the drilled hole which is easy to collapse and offer higher rates of installation than the regular rock bolts. The Self-drilling Anchor is used for rock bolting and grouting in softer rocks where there is loose ground or sections prone to collapse. Hollow bar anchors are created from steel tubing, and are installed in micropiles or piers to provide additional strength and support.

The self drilling anchor system is the important element of the flexible supporting system Mon, 10 Oct 2016 11:16:17 +0200 metiscn metiscn Metis SDA bolts have been devoting themselves to a large number of famous metro tunnels at home and abroad, such as Beijing Metro line 10, Harbin Metro, Qingdao Jiaozhou Bay Tunnel and Santiago Metro Line 6, etc. Metis always insist on safe, efficient, energy-saving and environmental friendly principles, and we will provide one-stop service, integral solution and quality guarantee.

The self drilling anchor system is the important element of the flexible supporting system. The functional mechanism of the anchor bolt combined arch depends mainly on the reinforcement effect from the systematic anchor bolts to the whole surrounding rock. It will help the surrounding rock to form arch bearing structure in a certain depth range, and to bring its high compressive strength into full play.

At Metis,we are proud of our quality program and the reputation that it has brought us.And our self drilling anchor product is a guarantee for your project.Close by, we deliver quality products, superior customer service, advanced technology, and real solutions to the mining and tunneling industries.
A majority of self drilling anchor system of Metis had positive effects on constructions Fri, 09 Sep 2016 11:26:33 +0200 metiscn metiscn A majority of self drilling anchor system of Metis had positive effects on constructions includes mine,tunnel,foundation support project and anchoring performance over two years since established, echoing results from last year in a sample that is nearly three times as large.

Whether you are looking to construct or repair a commercial runway, apron, or taxiway with stringent ASFA specifications, or you are looking for a contractor that has the skill and expertise to meet the demands of the Department of Defense, Metis is your anchor bolt manufacturer for civil construction of choice. 

With high quality self drilling anchor bar, Metis leading anchoring subjects have been exported to more than twenty countries and have been taken into use in a great many conditions like mines,tunnels,hydroelectric projects,civil constructions,transportations and other geological engineerings.

The company and its promoter enjoys high credibility and trust of its Clients and believes in firm commitment based on Quality, Higher Efficiency, pursuing better innovative products and of course gaining " Customers satisfaction." The Company is keen to cater to the needs of its Clients for whom Quality is Important and to serve the required expectations.
Metis is a high quality provider of custom-made hollow anchor bolts Tue, 30 Aug 2016 11:24:37 +0200 metiscn metiscn The self drilling hollow anchor bolt has demonstrated that in the majority of medium strength soils ultimate loads in the range of 250 to 400 tonne can repeatedly be achieved. The system also has the advantage of being appropriate for use in environments previously considered unsuitable for traditional ground anchors.

The Self drilling bolt is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling bolt is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc jobs, which is widely used in mining, tunneling, railway, metro construction etc projects.

With over 10 years of experience,Metis is a high quality provider of custom-made hollow anchor bolts. We engineer our anchor bolt services to be as flexible as possible, aiming to provide many common and rare material, size, and finishing choices. By selecting our bolt services, you’ll have a production partner that will not limit your design intent.
Metis hollow anchor bolts are ideal for micropiles Mon, 15 Aug 2016 11:05:45 +0200 metiscn metiscn  

Metis - We concentrate our efforts on the special self drilling hollow anchor bolt markets and has become a steel merchant of good repute over the past 3 years.

Metis hollow anchor bolts are ideal for micropiles, soil nails, and tie down and tie back anchors in difficult ground conditions like weathered and decomposed rock, round gravel, sand and clay soils for either permanent or temporary use.

Metis supplies ground anchoring systems, for all forms of temporary and permanent works, and rapidly installed mini piles which have wide ranging applications.

Extensive lab and field testing has demonstrated the effectiveness of the hollow anchor bar in providing more efficient energy transfer, higher bit penetration rates, and longer thread life for both bit and rod.Metis hollow anchor bar is designed to increase drilling efficiency and to reduce operating costs for hard rock drilling and anchoring operations.

Due to superior reliability and extensive application,Metis hollow anchor bar .
Self drilling anchor bolts are extensively applied in structure of founadtion pit support Fri, 05 Aug 2016 11:52:25 +0200 metiscn metiscn As a reliable self drilling anchor bolt supplier ,Metis began with a commitment to its customers of 'Service first, Quality always'.

Metis is professional in self drilling anchor bolt system.Years of experience have provided Metis with a wealth of information concerning anchoring types, applications, and systems. Technical advice is available at all times for the development of better ideas for anchoring. The sales staff is trained and experienced in recommending the proper anchoring application to fulfill the customers’ needs.

Self drilling anchor bolts are extensively applied in structure of founadtion pit support,which mainly make use of anchor-hold in the layer of soil in order to maintain the stability of structure.While based on complex geological conditions, the security and supporting effect are more important, so self drilling anchor bolt system is quite necessary.

What makes our company special is our Staff. Most of our Staff has been with Crouch for many years. Some of our Staff have made working with us at Crouch their own family tradition throughout the years by allowing us to employ their other family members.Welcome you to choose our products!

The Metis self drilling anchor system facilitates your work to a great extent Thu, 28 Jul 2016 12:07:51 +0200 metiscn metiscn The Metis self drilling anchor system facilitates your work to a great extent, as it is capable of performing drilling, anchoring and injecting procedures all at once. The self drilling anchor system has a hollow interior, a threaded exterior and a drill bit that is used for drilling. The hollow interior of the self drilling anchor system allows air and water freely pass through the drilling process, flushing the particles. It also facilitates immediate injection following completion of the drilling process.

The self drilling anchor in Metis is an advanced anchor system which is composed of hollow anchor bar, nut, plate, coupler, drill bit and centralizer. If we want to be the most professional self drilling bolt manufacturer, we must do some innovation and reform on our products.

Self drilling bolts are used for civil work and grouting in softer rocks, especially the loose ground and sections prone to collapse. Self drilling bolt stabilises the slopes which are highly weathered or broken. Self drilling bolt can also be used for rock pinning and rock dowel applications where localized reinforcing of the rock face is required.Self drilling bolts are typically regarded as lightly loaded, full bonded installations, for low risk applications.

The Self drilling bolt system of Metis is recognized by most of engineers due to its excellent quality, delivery performance, innovative management and perfect service system.

It begins with parts carefully matched with our supply partner and inspected to meet to our customer’s application specification.

Metis is a anchor bolt company of individuals dedicated to helping you build better products that last longer. Our manufacturing facilities comply with major international quality systems. We think you’ll find our engineering expertise, knowledge and product portfolio will always offer the best solution for your anchoring challenge.
Self drilling bolts are extensively applied in structure of founadtion pit support Tue, 19 Jul 2016 11:42:23 +0200 metiscn metiscn Metis is an experience anchor bolt manufacturer of high performance products in China, with advanced technology, topclass equipments and meets select international quality standards. Furthermore, our products are produced & designed in terms of IS09001:2008 stipulation.Owing to our products' excellent performance and reasonable pricing policy, we successfully minimized our every customer's bolt cost into per meter. Also we would be happy to design & produce products as per your required specifications.

Metis, manufactures and sells high quality self drilling rock bolt , conducts business in an honest way in its dealings with customers, suppliers and collaborators. Shares the benefits with collaborators and cares about their professional and personal development. To be a leading international company, that grows and renews itself launching new products, adapts to customers expectations; develops and rewards its employees.

Self drilling bolts are extensively applied in structure of founadtion pit support,which mainly make use of anchor-hold in the layer of soil in order to maintain the stability of structure.While based on complex geological conditions, the security and supporting effect are more important, so Self drilling rock bolt system is quite necessary.

Metis also has many brand Competitiveness,such as powerful equipment,reliable products,excellent services,technology & innovation and professional team.It has many advanced machines for self drilling rock bolts. Some of them are designed & developed by theirselves. Now, they have applied for the patent about our machines.

It is wise for you to choose the world's leading anchor bolt supplier-Metis.
Self drilling hollow anchor bolt is a quite convenient and safe method for reinforcement Tue, 12 Jul 2016 10:54:53 +0200 metiscn metiscn In high-slope protective engineering of railway, it is easy to occur slip and destruction along shearing surface. To keep stable of slope, there are two ways: one is to cut slopes for reaching stable; the other one is to install retaining structures. While the first way is not economical or practical, so self drilling hollow anchor bolt is a quite convenient and safe method for reinforcement. 

Metis anchor bolts are the perfect solution for the most challenging projects.Our unique approach to supply perectly matched connectors and related accessories has made Metis anchor bolt Systems the preferred partner in the world of advanced engineering.


Over the years, Metis has emerged as the world leader self drilling bolt supplier in ground anchorage due to our quality, responsive customer service and industry-leading designs. Our broad range of geotechnical instrumentation is manufactured at our factory in the China, by a staff of trained, qualified and experienced machinists and assemblers. 

Metis is a top self drilling hollow bar supplier for the commercial construction Fri, 01 Jul 2016 10:57:06 +0200 metiscn metiscn Metis–We are one of the leading suppliers of anchor bolt that has gained wide appreciation for international quality standards. Our range of anchor bolt is available in various metals like copper, brass, aluminum, phosphorus bronze, gunmetal and lead. Designed to suit the various requirements of different industries these are widely appreciated for excellent finish and corrosion resistance.

Metis is a top self drilling hollow bar supplier for the commercial construction and manufacturing industries.

Metis's self drilling anchor systems are extensively used for connection applications within the construction, engineering and manufacturing industries. Our largest market is the construction industry where we offer our customers highly engineered anchoring products for precast concrete elements; curtain wall and building facades; structural connections within commercial, public and residential construction; as well as anchoring solutions for tunnels, civil engineering and transportation structures.Because our self drilling anchor products play a vital role in many constructions,so Sinorock put the saftey of self drilling anchor products on the first.
Metis quality anchor bolt is of great importance in rock mining Fri, 03 Jun 2016 11:15:24 +0200 metiscn metiscn Metis has technological expertise and manufacturinng competence, presents itself as an eminent manufacturer of anchor bolts.

Metis supplies a wide range of self drilling anchor bolt, such as R25, R32, R38, R51 and T30, T40, T52,T73, T76, T103, T111, T127, T130.

Quality anchor bolt is of great importance in rock mining.Metis has focused on developing and producing high quality anchor bolts and anchor tools. We use a strict quality control system for each production process.

Metis offers the tightest tolerances in the industry. We are able to do so through stringent control of our process parameters and because of proprietary processes that we have developed. With over 4 years of experience in operating anchor bolts, we have a complete understanding of the primary parameters that are responsible for variations in product quality and we are able to control these parameters very carefully. Similarly, we have developed special surface treatment and cold sizing processes that allow us to ensure extremely good dimensional control as well as surface cleanliness. In case of anchor bolts, tighter tolerances translate directly into cost savings.

In order to guarantee a clean turned size, we are able to provide a finer machining allowance than our competitors. This not only means that you have less material to machine but also you get a greater number of finished components per tonne of anchor bolts that you purchase.
Metis serves the world in the areas of self drilling anchor bolt support Wed, 25 May 2016 09:57:01 +0200 metiscn metiscn Metis self drilling anchor system which mostly common used in radial bolting,fore poling,soil nailing,tunneling,underground mining and ground engineering industry.It is manily used for the supporting enineering in thre loose and broken rock stratal with difficult to drilling hole.It provides the effetive solution for micro-piling,rocknetting retention and tunnel repair and refurbishment.

Metis is registered in China,serves the world in the areas of self drilling anchor bolt support and reinforcement technology.Metis supplies quality self drilling anchor bolt syetems which are made by her manafacture base in China,who is a certified factory according to ISO9001:2008 to our global clents with a competive price. Products are also with CE certification. Our experienced Management and Staff is committed to provide the utmost in quality and service in every step of our production, while remaining competitive in the marketplace. It is our goal to meet our customer’s needs more effectively than our competitors through a process of continuous quality improvement. Our long-standing relationship with our customers; and suppliers’ is our key to continued success and growth. If we can be of any further assistance to you and your company, please do not hesitate to contact.
Self drilling anchor system are either injected during or after the installation process Thu, 07 Apr 2016 09:42:56 +0200 metiscn metiscn Metis brand has become synonymous with the anchoring product category it invented. From the self drilling anchor bolt to our latest initiatives, we continue to innovate and lead the industry with labor saving, high quality and performance Metis designs and solutions.

Self drilling anchor system are either injected during or after the installation process. For simultaneously drilling and injecting, which is usually performed in cases where the ground needs to be further improved or stabilized during installation, special rotary injection adapters, which are placed in between the shank adapter and the hollow anchor bar, are being used. These adapters allow that the bolt is installed self-drilling while the injection medium is added at the same time. Normally, self-drilling hollow bar bolts are injected after the installation process is completed. In doing so, the anchor head is connected to an injection adapter which is furthermore linked to a grout pump.The injection flow goes inside the hollow bolt upwards until the bolt’s toe, from there on the bolt is grouted outside bottom up until the grout flows out at the bolt’s head. The threaded bolt geometry ensures an optimum bond between the bolt and the injection medium.  

We take pride in our commitment to operational excellence, superior service and new product development that has guided the company through decades of growth by meeting the ever-changing needs of the commercial construction industry. Focusing on the needs of our end-users enables us to customize our product offering and service based on their requirements.

Metis has emerged as The World Leader in ground anchorage Fri, 25 Mar 2016 09:44:21 +0100 metiscn metiscn Metis self drilling anchor bolt comes with couplings, different types of bits, centralizers, nuts and anchor plates, and also several accessories for injection.Our range of self drilling bolt has the following threads : R25, R32, R38, R51, T30,T40,T52 and T103, etc.,with several inside diameters.R thread anchor bar or called rock bolt, 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.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.

Our production of self drilling anchor bolt has increased progressively to cover the national markets due to the competitiveness level reached by our company after both the metal treatment technology innovation and the experience made in the field during these past years.The updating of the production processes according to the quality assurance certification ISO 9001:2008, implemented since long time now, guarantees very high standards levels of our products.

Over the years, Metis has emerged as The World Leader in ground anchorage due to our quality, responsive customer service and industry-leading designs. Our broad range of geotechnical instrumentation is manufactured at our factory in the China, by a staff of trained, qualified and experienced machinists and assemblers.
Self drilling anchor bolt system of Metis has been applied in tunnel rehabilitation and enlargement Fri, 26 Feb 2016 07:07:18 +0100 metiscn metiscn Self drilling anchor bolts are widely used as an efficient anchoring means, for drilling, grouting and anchoring in tunnel pre-support, slope anchor, mining, roadbed reinforcement and other projects, and they can work well in narrow space. We also provide accessories of drilling tools, like anchor bits, coupling, spherical nuts, plates, and stopper.

With more and more countries are investing in tunneling, infrastructure construction, hydroelectric projects, High-speed rail construction, etc.Of course,more and more self drilling anchor bolt products are applied in the constructions.With so many different structures incorporate anchor bolts into their construction, it’s not hard to believe that Metis has taken large share of the self drilling anchor bolt market.Metis is to be a powerful force in the engineering industry.

Self drilling anchor bolt system of Metis has been applied in tunnel rehabilitation and enlargement, soil stabilization, rockfall mitigation, shaft construction, shotcrete, culvert installation, soil nail and anchor bolt installation. We have built a solid reputation as an emergency responder to natural and manmade disasters for most any type of construction emergency.

We are one of the most reliable names in the industry, offering self drilling anchor bolt to the clients at industry leading rates. Our huge supply network facilitates timely dispatch and delivery of ordered products. These products are manufactured using quality approved raw material and advanced industrial technologies.

self drilling anchor bolt

Don't hesitate to make Metis to be the bolt manufacturer in civil Tue, 23 Feb 2016 10:22:46 +0100 metiscn metiscn Metis has concentrated on the geotechnical field and has become the leading specialist for demanding geotechnical products.We are successfully meeting the needs of engineering industries as a renowned  bolt manufacturer.

Metis company is recognized for its excellent quality, delivery performance, innovative management and perfect service system.In addition,many products we have developed have become industry standards.The products we provide are all kinds of rock bolt and the corresponding accessories.Our products received the consistent high praise by the customers.

Metis is your single source for your high quality anchor bolt,we are committed to fulfilling your orders accurately and delivering them in the timeliest manner possible.

We provide a variety of geotechnical services including ground improvement, rock slide stabilization, excavation shoring, etc. 

Metis is the leading manufacturer of high quality anchor bolts, meeting clients’ exacting demands for critical applications in hostile environments. Whether for offshore (buoyancy and petrochemical), seawater, pump, tunneling or mining, the demands for an exceptional service and supply is never ending. We believe manufacturing anchor bolt in exotic materials is an art form and it is something we have perfected at Metis.

Whether you need anchor bolts for a large project or you need a small quantity, you can trust us to deliver the best. We specialise in the making of a variety of anchor bolt products and we are known to be the number one anchor bolt manufacturer in China. We use metals like steel, brass and some special alloys to make perfect pieces for our customers. We also take orders to make client-specific products. You can be sure to get exactly what you need from Luoyang Metis.

Don't hesitate to visit us to check out our stock. You will be amazed by our production capacity and by the quality of our products and services.

The Metis website contains our product information, documentation and updates. This includes product approvals and listings, general product information, software tools, contact information, newsletters and announcements. These program resources and supplements, combined with over several stocking locations throughout China, provide one of the best engineering and field support systems available in the anchoring industry.








Self drilling anchor of Metis support civil work around the world Wed, 03 Feb 2016 08:24:29 +0100 metiscn metiscn Many craftsmen will tell you that having the right tools and equipment needed for the project is essential to getting it done right. This goes for every last part, right down to the smallest pieces like self drilling anchors,Finding a reliable source for everything you need to get projects done is a priceless asset for anyone who works regularly with hardware and tools.

A strong infrastructure is the very foundation of our communities and nation. As budgets tighten, and consumer pressure demands dollars are spent more wisely, it’s important to choose a anchor bolt company for your civil construction who delivers certainty in three critical areas:schedule, cost and quality. That’s what we do.

Let Metis become your best resource for replenishing your self drilling anchor supply, and for all future projects.

Geotechnical engineers should take responsibility for building and infrastructure designs that benefit the public, so the end result must be completely safe, durable and well constructed.Metis understands these challenges and provides expert self drilling anchor support for civil engineering projects throughout the world.

Basic component of civil construction - self drilling anchor bolt Wed, 27 Jan 2016 05:16:01 +0100 metiscn metiscn Self-drilling anchor bolts are available in a wide selection of sizes to best meet your requirements. We maintain a fully stocked inventory so that we always have the products you need, when you need them. Complete your construction project with the best tools from a company you can rely on to deliver quality parts. When you are looking for the best, consider Metis to seamlessly handle all of your needs. If you are a concrete or masonry tradesman, our comprehensive selection of accessories, tools, and equipment will make completing your job much easier.

Self-drilling anchor bolt is the most basic component of roadway in coal mining and other engineering,The roadway surrounding rock reinforcement bolt together so that surrounding rock support itself, to ensure construction safety.Hollow rock bolt is now not only used for mining, but also for engineering technology, tunnel, dam, main slope reinforcement.

​The products from Metis generally applicable to railway, tunnel, mine, slope, high-rise building foundation, building reinforcement engineering, etc.

If you choose us,we will provide you with one-stop service!

Self drilling anchor give workers saftey in tunneling Wed, 20 Jan 2016 11:48:51 +0100 metiscn metiscn Ever since the tunneling principals have found industrial acceptance, in particular for unconsolidated/fractured ground conditions, also self-drilling anchors have become an irreplaceable product.

The traditional deep excavation retaining method can not meet the requirement of the stabilization of large-scale underground buildings.

Especially in sandy cobble stratum where the ratio of finishing gas hole is very low, it must lead to high pressure for the grouting and anchoring later and increase the construction cost.

Metis self drilling anchor is composed by anchor head,anchor nut,bearing plate,couplers and so on,which plays a significant role in connecting drilling,grouting,anchoring with each other to make the construction easier and efficiency.

Generally,as an practical and reliable placing solution,self drilling anchor has been extensively applied in the mining,tunneling,foundation support,hydroelectric project and roadway support project and so on,with so many years of exploration and development,the techniques of the installation of self drilling anchor has became skillful and been trusted by our customers around the world.

Grouting is a so critical element to provide strong strength and bonding stress for surrouding rocks,with the whole wrapped of grout,the self drilling anchor can make a perfect effect on the operation of various civil constructions.

The facilitate of self drilling anchor is so easy that it’s the key elements for our agents to choose our anchoring products.We allows customization of self drilling anchor,so the length of rod body can be cut and connected as our customer’s specific requirements.

The Metis self-drilling anchors are part of the excavation process and serve as primary soil/rock support for:

• Radial consolidation of the tunnel circumference supports the rock, forming a load bearing ring thus enabling the rock supporting itself

(together with shotcreate and other facing elements).

• Umbrellas and Fore poling as pre-support in poor rock formation, shallow overburden and critical stress conditions.

• Face stabilization to sustain rock pressure for excavation with large cross sections.

• Root piles to divert stress.

The conventional method of installation involves drilling the self-drilling anchor with water flush to the design layout and depth and in a second phase, independent of drilling, a grout adapter is added and a dense cement based gourt mix is injected through the hollow core to exit through the flush holes at the drill bit filling the borehole annulus until the grout mix appears at the borehole mouth, once cured, enabling the transfer of stress from the rock/soil formation.

If you have any question please don’t feel any hesitate to contact us at any time,we have professional R&D team to offer best and economical drilling solutions,which will make your operations easier and efficient.

Metis is a respondsible anchor bolt manufacturer for infrastructural projects around worldwide Tue, 12 Jan 2016 08:12:11 +0100 metiscn metiscn Metis is a respondsible anchor bolt manufacturer for infrastructural projects around worldwide.Metis has the substantial strength for making anchor bolts for making your space safer.We grab from the source to the end for striving to give you a perfect experience in the process of anchor bolt purchaing.


Only reliable and excellent suppliers can be our choice and achieve a strategic partner relationship. It is Sinorock management’s belief that only qualified raw material can possibly produce perfect products.We choose only to cooperate with reliable suppliers and reach a strategic partnership with them. 


Based on the strategic partnership cooperation, the suppliers provide us sufficient technology support which helps us to implement our cost-saving, quality-upgrading and product-developing programs.


A favorable communication and information-sharing system has been developed through long term cooperation which gives us advantage to be sensitive to every change of raw materials in the market and make immediate responding to cost and delivery time accordingly. A powerful risk-resistance ability is therefore formed.  

During the cooperation with suppliers, an information sharing system has been developed between suppliers and Metis, which enables Metis to get the first  information on raw material updates and dynamics in time, guarantees time and continuity that raw materials arrive in Metis. That is the reason why Metis is so strong in resisting risks. 


Metis has set up a good reputation within our supplier chain through long-term cooperation.