Our Services

Rock Bolts

Rock Bolts

Self drilling rock bolts application is according to the New Austrian Tunneling Method (NATM). The applications include: slope stabilization, rock fall netting, Fence interception, tunnel entrance stabilization or avalanche protection barrier.

Soil Nails

Soil Nails

Self drilling soil nails provide friction, shear and tension strength in loose or collapsing soils. The ONTON hollow bar allows drilling and grouting to be combined as a single operation step. All hollow bars fully comply with EN 14490 (European standard for soil nails).



Self-drilling micropiles can be installed in structural foundations or near the buildings. ONTON self-drilling hollow baris hollow with fully threaded, and can be extended and grouted to deeper ground. ONTON self-drilling micropiles comply with European EN 14199 and American ASTM A-615 standards.



Special design or requirements on job site will need non-standard self-drilling anchor bars to achieve special anchorage in rock or soil ground. ONTON may design the self-drilling anchor bars and accessories according to customers special requirement. Like bending bar, drilling holes bar.

Equipments And Installation


Drilling method

The self drilling hollow bars are typically installed using rotary percussive drilling. Drilling and Grouting are simultaneous.


Drilling rigs

Self-drilling anchor hollow bars are mostly equipped with hydraulic rotary percussion drill devices (the top hammer). Manual hand held drill machine, Geomek D50, Comacchio MC 235, Atlas Copco Roc an Klemm drill rigs are often used.

Customer Visit

Our Customers

Quality Control

- ISO 9001 Quality Management System
- IBO hollow bar products sampling and inspection:

Initial examines: Dimension, Appearance inspection (Raw material steel pipes)

Duplicate examines: performance inspection(IBO hollow bar strength and ductility)

Finished bar examines: Dimension (100%), Appearance (100%) and Tensile Test (3%)


Initial examines


Duplicate examines


Finished bar examines


Onton ISO Certificate
Onton CE Certificate
Onton Environmental Management System Certificate

Why Choose ONTON?​

Choose ONTON rock anchoring contractors for rock anchoring services that redefine industry standards. Our hollow anchor bars and comprehensive services are engineered to elevate the success of your construction projects. Please feel free to contact us anytime to explore the advantage of excellence with ONTON, where precision meets performance in every anchor.

Rock Anchoring Contractors

With years of experience, ONTON brings unparalleled expertise to the construction industry.

Quality Assurance

Our ISO 9001:2015 certification is a testament to our commitment to delivering products and services of the highest quality.

Customization Options

From product specifications to packaging, our services are customizable to meet your unique project requirements.

Comprehensive Self Drilling Hollow Anchor Bar Solutions

At ONTON, our hollow anchor bars are the epitome of strength, durability, and versatility. As a leading manufacturer, we offer an extensive range of products tailored to meet the unique needs of construction projects. From R Thread Self-Drilling Anchor Bars to T Thread Self Drilling Hollow Bars and T-Thread Self-Drilling Hollow Bars, our product line is designed to exceed industry standards.


Rock Anchoring Contractors

Entrust your construction projects to ONTON’s team of seasoned rock anchoring contractors. Our experts bring a wealth of experience to the table, ensuring that your project benefits from the latest industry advancements and the highest quality hollow anchor bars.

Our rock anchoring contractors prioritize precision, efficiency, and safety, ensuring that your project meets and exceeds expectations.

Specialized Hollow Anchor Bar Solutions

Every construction project is unique, and our specialized hollow anchor bar solutions cater to these distinct needs. Whether you require corrosion-resistant Stainless Steel IBO Self-Drilling Anchors or custom-sized IBO Drill Rods, our services are tailored to your specifications.

ONTON’s specialized solutions provide the flexibility needed for projects with diverse requirements.

SDA Tips and Guidance

Navigate the complexities of self-drilling anchor applications with our expert tips and guidance. Our SDA Tips section is a valuable resource for rock anchoring contractors and construction professionals, offering insights into optimal usage and best practices.

Leverage our expertise to enhance the efficiency and effectiveness of your hollow anchor bar installations.

Package and Transport Services

Our commitment to a seamless customer experience extends to our package and transport services. Benefit from reliable and secure transportation options that ensure your order reaches its destination intact and on time.

ONTON’s package and transport services prioritize the safety of your products, from our warehouse to your construction site.

hollow anchor bar

In the intricate world of construction, ensuring the stability and safety of structures is paramount. Rock anchoring, also known as ground anchoring, plays a pivotal role in securing foundations, slopes, and structures against the relentless forces of nature and human activities. ONTON – self drilling rock bolt manufacturers and rock anchoring contractors, stands as your trusted partner, providing comprehensive rock anchoring services that span the entire project lifecycle.

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