Geonex Horizontal Hammer Boring - trenchless solution
Geonex Horizontal Hammer Boring is the go-to solution for mixed soils and solid rock. It delivers reliable results where other trenchless methods fall short. The method enables accurate, fully cased bores up to Ø1219 mm—even in the most difficult ground conditions.
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Latest Horizontal Hammer Boring projects in EU
What do our customers think
As a Swiss specialist in trenchless technologies, we are confronted with a variety of complex and extreme geological conditions. To successfully master these challenges, we have relied on our wide range of Geonex machines for many years."
Johan de Ruiter
Trenchless and Foundation sector Manager, Grund- und Tiefbau AG
In Spain, due to our complex geology, the introduction of Geonex has filled a gap that no other trenchless technology could cover. Projects once considered unfeasible have been reactivated. Not since the arrival of HDD has the trenchless industry seen such a breakthrough — Geonex has changed the game."
Juan Peretó Bayo
Sales Manager, Sistemas de perforación
Many of our projects wouldn’t have been possible without Riggtech’s long experience and Geonex’s strong partnership. Together, we keep developing new technologies and solutions to meet customer needs. Geonex is a key part of our growth journey, and we’re grateful for their daily support.
Anders Olsson
Technical Manager, Riggtech Entreprenad AB
Trusted partners
Geonex product Range
Geonex as company
Established
2007
In Finland
Geonex delivers trenchless boring solutions used around the world.
Operate in
03
Continents
We support customers across Europe, North America, and Asia.
More than
15000
Holes in various projects
Our technology has been used in over 15,000 successful horizontal bores.
Over
300000
Meters of boring
Geonex equipment has proven its reliability in real-world conditions.
Proven Performance in Challenging Ground Conditions
Geonex horizontal hammer boring technology is designed to perform in the most demanding conditions, from solid rock to mixed soils. Its proven down-the-hole (DTH) system delivers consistent results in unpredictable terrains, minimizing risks and ensuring reliable project outcomes without surface disruption.
News & Insights
GEONEX™ HHB Solves Critical Pipeline Crossing
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Challenging ground, flawless execution — the hammer drilling advantage.
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North American Projects Using HHB for Success
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History and development of Geonex HHB systems
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New Installation in Cobbles and Boulders below Sensitive Wetland
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Minger Construction expands their trenchless capabilities
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Solving Difficult “Hard” Geology Projects
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Going Further for Transmountain
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How to install steel casing crossings in difficult mixed rock geology
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Conductor Barrels That Prevent Frac-Out in challenging soil conditions
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Join the companies that trust horizontal hammer boring for tough ground conditions.
Frequently Asked Questions
Below you’ll find answers to the most common questions about our trenchless technology, drilling capabilities, and what makes our method stand out.
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What is Horizontal Hammer Boring?
Geonex Horizontal Hammer Boring is a trenchless drilling method that uses down-the-hole (DTH) hammer technology to install fully cased boreholes through rock and mixed ground—without surface disruption.
This method is ideal for installing pipelines or cable conduits under roads, railways, and rivers. It performs exceptionally well in hard rock, unstable mixed soils, and blasted fill where other trenchless technologies struggle.
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How does Geonex technology differ from traditional trenchless methods?
Geonex Horizontal Hammer Boring (HHB) rigs stand out with features that maximize precision, efficiency, and usability in difficult conditions:
- Independent jack-leg and side-shift orientation allow for accurate setup even on uneven surfaces, ensuring precise casing alignment from the start.
- Continuous feeding with rack & pinion technology eliminates stops and starts, increasing speed and consistency during drilling.
- Sophisticated remote controls provide real-time control over drilling parameters, enabling precise adjustments from a distance.
- Adaptive frame length means the rig can be shortened or extended depending on space constraints—ideal for tight urban sites or long bores.
These innovations help Geonex rigs perform where conventional auger boring or HDD struggle—especially in mixed ground and hard rock conditions.
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What casing sizes and drilling lengths can Geonex rigs handle?
Geonex horizontal hammer boring systems support a wide casing diameter range from Ø139.7 mm (5 1/2”) to Ø1219.2 mm (48”), all installed in a single drilling phase with full casing support. Depending on the ground conditions and rig type, fully cased bores can reach lengths of 100–150 meters. In solid hard rock without casing, drilling distances of up to 500 meters are achievable—making Geonex ideal for demanding infrastructure projects.
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Why choose Geonex trenchless technology?
With nearly 30 years of hands-on experience and 15,000+ installations, Geonex delivers proven trenchless solutions that combine power, precision, and performance—engineered for the toughest ground conditions. Our complete trenchless solutions are built on deep technical know-how, high-quality manufacturing, and customer-focused service.