Rope Thread Self Drilling Anchor Accessories

Self drilling anchor system is a set of rod body, anchor coupling, anchor nut, drill bit, anchor plate, centralizer… The entire self-drilling system as a whole to be used to anchor collapse soil or rock formations.

Features of self drilling anchor accessories:

ONTON’s Advanced Self Drilling Anchor System: Tailored Stability Solutions

A self drilling anchor system offers a robust solution for precarious ground conditions such as sand, gravel, silt, clays, and soft to medium fractured rock formations. At ONTON, our self-drilling anchor solutions are meticulously crafted to optimize installation, tailored precisely to the unique requirements of each project.

These anchors redefine conventional bolting methods by utilizing a streamlined technique. With a sacrificial drill bit and a hollow rod, they penetrate collapsing soil or loose rock. Post-drilling, cementitious grout or resin is injected into the hollow rod and surrounding cavity, elevating self-drilling anchors to a pinnacle of productivity.

Comprising elements like a hexagonal nut, bearing plate, extension couplings (if involving multiple anchor rod sections), hollow anchor rod(s), and a sacrificial drill bit, our self-drilling anchor bolts guarantee structural integrity and stability in challenging environments.

Features of Self Drilling Anchor Accessories:

Anchor coupling. The high-strength coupling lengthens the self drilling anchor rods, which can be applied to a narrow construction space and realize the design idea of extra-long anchor rods to strengthen the surrounding rock. It has a unique tapered center stop which seals the hollow bar connection to minimize grout leakage during simultaneous grouting and drilling.
Anchor nut. Nut has hex and spherical types to lock the plate and to transmit force from anchor bar to plate and finally to the working face. A full 100% ultimate tension or compression strength component to the self drilling anchor bar.
Drill bit. Alloy drill bit with strong penetrating power in front of the anchor rods, which can easily penetrate all kinds of rocks under the action of rock drilling tools. The continuous corrugated threads complete drilling of anchor holes with a drill bit.Drill bit has various types, steel and carbide with ES, ESS, EX, EXX, EW…
Anchor plate. To be used with anchor nut to lock the anchor bar, to transmit load force from the self drilling anchor system to the work face.
C In deep holes drilling with lengthened anchor bars (could be connected by coupler), the bar is easy to swing, by attaching a steel centralizer in front of the coupler during drilling to prevent the anchor bar from big swing, so as to guarantee the drilling and grouting quality.

The Applications of ONTON’s Self Drilling Anchor System Span Across Critical Sectors

Slope Stabilization
Unstable rock and soil formations find stability through our self-drilling anchors. The technique’s efficiency in unconsolidated or weathered ground conditions surpasses traditional methods, ensuring swift and uncomplicated installation.

Foundations with Micropiles
Our SDA micropiles, crafted as drilled piles with injected grout and steel reinforcement via anchor rods, suit limited-space sites. Capable of installation in diverse ground conditions, including rock, they accommodate tension and compression loads efficiently, enabling high piling outputs.

Tunneling
For tunnel excavation in overburdened and soft fractured rock conditions, ONTON’s self-drilling anchor system emerge as the most economical solution. They reinforce the tunnel circumference and provide advanced roof support, ensuring safety and stability.

Self-Drilling Anchor Equipment & Drill Bits
The sacrificial drill bit, pivotal in the self drilling anchor system, dictates installation productivity. ONTON offers an extensive range of drill bits designed to adapt to changing geological conditions encountered during projects. Our focus remains on improving penetration rate, bit quality, and cost efficiency based on global project data.
The selection of drill bits is crucial for successful installations. Unlike conventional bits, our SDA drill bits prioritize factors such as limited service life, installed MAI SDA length, geology, and geometry, ensuring optimal performance.

SDA Anchor Components

Hollow Anchor Rods: Engineered with a hollow bore for flushing or simultaneous drilling and grouting, our anchor rods boast a durable construction suitable for various applications.

Extension Couplings: Featuring a patented design ensuring maximum percussive energy transmission between bars, these couplings minimize energy losses, guaranteeing optimal drilling efficiency.

Bearing Plates: Customized forged steel plates with articulation capabilities in all directions, ensuring adaptability to diverse applications.

Hexagonal Nuts: Manufactured from high precision steel, tempered to meet stringent anchor specifications, ensuring reliability and durability.

Galvanized Anchors: Protection against corrosion is offered across our entire range of SDA bars and accessories.

Coupling Adapters, Shanks, and Grout Coupling: Each component is meticulously crafted and designed to optimize the anchoring process, ensuring durability, precision, and ease of use.

At ONTON, we provide not just products but comprehensive Self-Drilling Anchor System to meet the most demanding project needs, ensuring stability and safety across diverse ground conditions. For more information about our self drilling anchor equipment, contact us.