AQUA SPINE TUNNEL
Starter kit Aqua Rail System 3.0
The Aqua Spine Tunnel 3.0 is a system for hydrodemolition
in tunnels and on inner circular or curved surfaces. Built
around the Aqua Spine rail with a Tunnel Ring and Circular
Power Head, it delivers precise, high-performance removal.
The Circular Support System handles reaction forces up to
2000 N, making it ideal for fast removal of large areas and
volumes. Available in three ring sizes, it covers diameters
from 1,5 m to 3,0 m for versatile project use.

High-performance removal
on tunnels and inner
curved surfaces.





3000 BAR
(43 500 psi)
2000 N
(450 lbf)
TUNNEL RING
ø1,5 M (ø4,9 ft)
6 M
(19,7 ft)
High-performance hydrodemolition for tunnels and inner circular surfaces
The Aqua Spine Tunnel 3.0 is designed for efficient hydrodemolition in tunnels and on inner circular or curved surfaces such as pipes and shafts. It enables precise and controlled removal where maintaining a consistent position inside curved geometries is critical.
The system is built around the Aqua Spine rail combined with a Tunnel Ring and Circular Power Head, delivering high-performance removal while handling reaction forces up to 2000 N. Designed for fast removal of large areas and volumes, it is well suited for demanding applications in underground and infrastructure projects.
Available in three ring sizes, the system covers diameters from 1.5 m to 3.0 m, ensuring flexibility across a range of tunnel and pipe dimensions. The Circular Support System, equipped with wheeled legs, allows the system to move smoothly along the inner surface, maintaining stable positioning throughout the operation.
As part of the Aqua Rail System 3.0, the Aqua Spine Tunnel is a multi-modular solution that can be adapted, reconfigured, and expanded to meet specific project requirements. This allows the system to be tailored for different applications while maintaining consistent performance.

Features
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Optimized for tunnels and inner circular surfaces
Designed for hydrodemolition inside tunnels, pipes, and other curved inner geometries, ensuring precise and consistent removal. The Circular Power Head…
Designed for hydrodemolition inside tunnels, pipes, and other curved inner geometries, ensuring precise and consistent removal. The Circular Power Head moves in a circular path along the tunnel ring, making it ideal for circular surfaces — both vertical and horizontal — and perfect for applications such as pipes and tunnels.
-
High removal performance for large volumes
Built for fast removal of large areas and deeper cuts, delivering efficient results in demanding applications.
Built for fast removal of large areas and deeper cuts, delivering efficient results in demanding applications.
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Handles high reaction forces
Engineered to withstand reaction forces up to 2000 N, ensuring stable and reliable operation.
Engineered to withstand reaction forces up to 2000 N, ensuring stable and reliable operation.
-
Stable movement along curved surfaces
The Circular Support System with wheeled legs enables smooth movement along the surface, maintaining consistent positioning during operation.
The Circular Support System with wheeled legs enables smooth movement along the surface, maintaining consistent positioning during operation.
-
Built on Aqua Spine and Tunnel Ring system
The system is based on the Aqua Spine rail combined with a Tunnel Ring and Circular Power Head, enabling controlled…
The system is based on the Aqua Spine rail combined with a Tunnel Ring and Circular Power Head, enabling controlled movement and accurate hydrodemolition on inner curved surfaces.
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Wide diameter range with multiple ring sizes
Available in three ring sizes, covering diameters from 1.5 m to 3.0 m, allowing adaptation to different tunnel and pipe dimensions.
Available in three ring sizes, covering diameters from 1.5 m to 3.0 m, allowing adaptation to different tunnel and pipe dimensions.
-
Multi-modular and adaptable system design
The Aqua Rail System is a scalable and configurable solution. The starter kit can be extended, reconfigured, or adapted with…
The Aqua Rail System is a scalable and configurable solution. The starter kit can be extended, reconfigured, or adapted with additional components to suit specific project demands.
Compatible with

Setups and solutions
Explore hydrodemolition setup solutions designed for different applications, environments, and challenges—adapted to deliver the right performance every time.
Specifications
| Size/Range | |
|---|---|
| Length | 6 m (19,7 ft) |
| Working diameter ring ø1,5 m (ø4,9 ft) | ø1,9-2,5 m (ø6,2-8,2 ft) |
| Lance angle | ±25° |
| Lance adjustment (in/out) | 300 mm (11,8 in) |
| Weight | |
|---|---|
| Total weight | 485 kg (1070 lb) |
| Operation | |
|---|---|
| Max reaction force | 2000 N (450 lbf) |
| Included in starter kit | |
|---|---|
| Triple Spine rail sections | 3 x 2 m (3 x 6,6 ft) |
| Hoist | Aqua Spine |
| Power head | Circular |
| Pillar ring | ø 1,5 m (ø 4,9 ft) |
| Support legs | Centralizer |
| Support wheels | 750 |
| End support | Tunnel |
| Additional options | |
|---|---|
| Compatible power units | Aqua Cutter 450/750 3.0, Ergo Controller |
| Compatible Power heads | Circular Power head |
| Spine rail sections | 0,25/0,5/1,0/2,0 m (0,8/1,6/3,3/6,6 ft) |
| Tunnel rings / Working diameter | ø1,0 m (3,3 ft) / ø 1,5-2,0 m (4,9-6,5 ft) ø2,0 m (6,6 ft) / ø 2,4-3,0 m (7,9-9,8 ft) |
| Support system | Multiple options |
| All Aqua Rail starter kits can be adapted to different requirements. |
