Topos / Pilot Drilling
Cylindrical pneumatic hammers for duct installation from 1/2" to 4" in lengths up to 20 meters.
What are Topos (Moles)?
Moles are cylindrical pneumatic hammers that compact the soil by displacing it radially, which allows leaving a circular cavity along the trajectory where the required pipe is subsequently installed.
This method can be used in compactable soils such as clays, silts, sands or mixtures. The ideal soils are medium-density clays and silts with unconfined compressive strength between 1.0 and 2.5 Kg/cm².
Pilot Drilling Process
Box Construction
A launch box is built at the starting point and a receiving box at the arrival point.
Mole Launch
The cylindrical pneumatic hammer is launched from the starting box, radially compacting the soil.
Cavity Formation
The mole creates a circular cavity along its trajectory by displacing the soil sideways.
Duct Installation
Once the drilling is complete, the required pipe or duct is installed in the created cavity.
Control Boxes (Optional)
For ring-type distribution lines, control boxes are located that allow achieving great lengths.
Ideal Soil Types
Clays
Ideal medium-density soil for compaction
Silts
Excellent for radial soil displacement
Sands
Compactable sandy soils
Mixtures
Combinations of different soil types
Medium Density
Ideal resistance 1.0 - 2.5 Kg/cm²
Compactable Soils
Terrains that allow radial displacement
Applications
Gas Distribution
Ring-type distribution lines for natural gas
Fiber Optic
Duct installation for telecommunications
Electrical Networks
Ducts for electrical power cables
Residential Services
Service connections to homes
Short Crossings
Short-distance installations with high precision
Distribution Networks
Urban distribution systems
Demo Videos
Topos - Pneumatic Hammers
Demonstration of pneumatic mole hammer operation
Pilot Drilling - Duct Installation
Duct installation process with mole system
Topos Advantages
High Precision
Precise installations for short crossings and exact connections.
Speed
Fast installation process without surface excavation.
Versatility
Adaptable to different types of compactable soil.
Radial Compaction
Displaces soil radially without removing it.
Control Boxes
Allows great lengths with control systems.
Ring Lines
Ideal for circular distribution networks.