Self drilling bolt is a hollow, thick-walled seamless steel pipe, with standard continuous thread on its surface. It consists of self drilling hollow anchor bolt, plate, nut, coupling and drill bit, anchor bar can be cut and lengthened as requirements. With functions of

drilling, grouting and anchoring, it can be widely used in broken stratum, sandy gravel, high water-bearing strata, especially for slope supporting in narrow deep foundation pit, without casing, economical and high-efficiency.

This technology has largely relieved structures’ self-gravity, saves engineering materials, ensured projects’ security and stability, with prominent economical and social benefit, so it has been widely used in projects at present.

Many years of experience covering a wide range of mining methods and conditions make Metis confident that we can provide practical and implementable solutions to your rock mechanics and strata control problems in both hardrock as well as coal mining – from sophisticated design using advanced numerical modelling tools to the quality assessment of support design and installation.

The self drilling anchor bolt system of Metis has become an established tool in the industry for mining.Through innovation we have developed the simple and very effective anchor bolt system for supporting the mine in inaccessible places.Our expertise has stood us in well stead in a number of major long-term research projects.

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Self drilling anchor system includes Plate and Bolts. A full range of Sacrificial Drill Bits are also available to fit all kind of ground conditions.Several rod standard rod lenghts are available. For longer system, it is possible to splice tendons using couplers to create longer anchors.

 

Self-drilling hollow anchor bars 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.

 

As an ISO certification business, Metis has demonstrated its ethical and business acumen. Metis operates within an important culture and set of beliefs. We believe every relation and interaction with clients and suppliers will be conducted in an ethical manner.Metis treats clients, suppliers and its own employees fairly and with respect.

 

Metis Products is the one-stop shop for all drilling and service needs. If we do not carry a product, we will make it or utilize one of our many contacts or partners to get it!

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