KOK-LD locating head
The interchangeable head adapter houses an electronic sonde near the front of the piercing tool.
TERRA Traceable Piercing Tools
Know where your mole is. Track the bore with confidence.
TERRA-HAMMER traceable piercing tools combine pneumatic soil displacement with an electronic locating system positioned in the KOK-LD head adapter.
Follow the position and depth of the tool during suitable underground utility crossings, with compatible head adapters available for selected TERRA-HAMMER models.
55–210 mm
Traceable model diameters
KOK-LD
Locatable head adapter
6–7 bar
Published operating pressure
9 models
Configurations in the supplied data
Front-head locating technology
Locate the piercing tool as it travels underground.
Conventional pneumatic piercing tools advance by displacing suitable soil using repeated impact energy.
A traceable TERRA-HAMMER adds an electronic sonde housed within a compatible KOK-LD head adapter.
The sonde is protected by shock absorbers, helping protect the locating electronics from the machine’s impact action.
A compatible handheld radio locator can then detect the sonde signal, helping the operator establish the position and depth of the tool.
Locating technology
Three elements working together.
The KOK-LD locating arrangement combines a protected electronic transmitter with compatible above-ground locating equipment.
Shock-protected transmitter
The electronic sonde is mounted with shock protection designed for the demands of pneumatic piercing.
Position and depth
A compatible handheld receiver with an LCD display is used to help identify the tool’s position and depth.
KOK-LD adapter
Add locating capability to a compatible mole.
The interchangeable KOK-LD head adapter allows selected TERRA-HAMMER TU models to be configured for traceable operation.
This can allow an existing compatible tool to be adapted for locating applications without replacing the complete piercing machine.
The manufacturer identifies TU 080plus SK and larger machines as suitable for straightforward KOK-LD adapter installation.
Exact adapter, transmitter and tool compatibility should always be confirmed against the specific model.
Locating equipment and accessories
More than the mole. A complete locating arrangement.
The traceable TERRA-HAMMER system combines the tool-mounted sonde with a suitable above-ground receiver.
Equipment to consider
A complete working setup may require:
- A compatible TERRA-HAMMER piercing tool
- The correct KOK-LD head adapter
- An approved electronic sonde / transmitter
- Compatible handheld locating equipment
- Suitable air supply, hoses and operating accessories
TERRA also describes additional transmitter arrangements for pipe and cable locating. Check the equipment and functions required for your application.
TERRA-HAMMER advantages
Proven piercing design with added locating capability.
The traceable versions combine the familiar TERRA-HAMMER construction with a front-head locating arrangement.
Trace the tool’s position
Compatible locating equipment can help monitor the position and depth of the underground mole.
KOK combi-head
The combi-head geometry supports soil displacement and penetration through suitable ground conditions.
Heavy main piston
TERRA’s hollow-head design supports the use of heavier main pistons for effective impact energy.
Interchangeable adapters
Compatible TU machines can be configured with the appropriate locating head adapter.
Shock-protected electronics
The sonde is protected within the head arrangement to help withstand the impact conditions encountered during operation.
Main-piston warranty
TERRA’s published information references a three-year warranty on main pistons. Terms and model coverage should be confirmed.
Manufacturer technical data
Traceable piercing tool specifications.
The following nine model configurations are taken from the TERRA traceable piercing tool specification table you supplied.
The figures relate specifically to the listed traceable versions. They should not be used interchangeably with standard or Mini versions.
| Model | Diameter | Length | Weight | Frequency | Air use | Pressure |
|---|---|---|---|---|---|---|
| TU 055 R (ortbar) | 55 mm | 1.25 m | 16 kg | 520/min | 0.9 m³/min | 6–7 bar |
| TU 068 SK (ortbar) | 68 mm | 1.51 m | 33 kg | 420/min | 1.3 m³/min | 6–7 bar |
| TU 080 SK (ortbar) | 80 mm | 1.51 m | 42 kg | 395/min | 1.8 m³/min | 6–7 bar |
| TU 090 SK (ortbar) | 90 mm | 1.44 m | 53 kg | 395/min | 1.8 m³/min | 6–7 bar |
| TU 105 S/F (ortbar) | 105 mm | 1.50 m | 71 kg | 360/min | 2.4 m³/min | 6–7 bar |
| TU 135 Twin (ortbar) | 135 mm | 1.80 m | 138 kg | 350/min | 2.4 m³/min | 6–7 bar |
| TU 155 F (ortbar) | 155 mm | 1.94 m | 182 kg | 285/min | 3.8 m³/min | 6–7 bar |
| TU 190 F (ortbar) | 190 mm | 1.97 m | 284 kg | 275/min | 5.0 m³/min | 6–7 bar |
| TU 210 F (ortbar) | 210 mm | 1.98 m | 343 kg | 275/min | 5.0 m³/min | 6–7 bar |
Technical information:
These figures are taken
from the manufacturer
specification screenshot
supplied for the traceable
TERRA-HAMMER range.
“Ortbar” is the manufacturer’s
German designation for
a locatable or traceable
configuration.
The source table lists
no expanders for the
nine configurations shown.
Dimensions, equipment
specifications and
compatibility may change.
Confirm the exact configuration
with TA Drilling before ordering.
Understanding the range
What do the TERRA model letters mean?
TERRA uses model designations to distinguish different head arrangements, reversing functions and construction systems.
TU
TERRA-HAMMER with interchangeable head adapters.
S
Quick reverse using a quarter-turn of the air hose.
F
Remote-control reversing function.
K
Serviceable Version K construction without heating during servicing.
SK
Combination of Version S and Version K features.
KOK-LD
Traceable head adapter containing an approved locating sonde.
Equipment selection
Specify the tool, head and locating system together.
Selecting a traceable piercing tool involves matching the pneumatic machine to the ground and installation requirements, as well as confirming the locating arrangement.
TA Drilling can help assess the equipment required for the proposed crossing.
✓
Pipe or duct outside diameter
✓
Ground conditions and obstructions
✓
Crossing distance and bore alignment
✓
Existing TERRA-HAMMER model
✓
KOK-LD adapter compatibility
✓
Sonde and receiver compatibility
✓
Launch and reception pit dimensions
✓
Compressor pressure and airflow
Need a traceable piercing system?
Send us the proposed installation diameter, crossing length and ground information.
If you already have a TERRA-HAMMER, include its exact model and current head arrangement.
We can help check the appropriate KOK-LD adapter, transmitter and receiver requirements.
Speak to TA Drilling
TERRA support in the UK
Bring locating capability to your next piercing project.
Whether you’re specifying a complete traceable TERRA-HAMMER or checking the possibility of converting an existing compatible tool, TA Drilling can help identify the right equipment configuration.
Enquire with TA Drilling