For nearly 45 years, TT Technologies’ GRUNDOMAT pneumatic piercing tools have been a proven workhorse of trenchless technology. Widely used across North America and around the world, GRUNDOMAT tools deliver accurate horizontal bores beneath roads, railways, sidewalks, and landscaped areas for water, gas, sewer, and electrical installations.
Requiring minimal operating space, the GRUNDOMAT serves as both a powerful complement to larger directional drilling equipment and an economical alternative for shorter installations.
GRUNDOMAT Piercing Tool Capabilities
- Accurate horizontal bores ranging from 50 to 150 feet
- Operates effectively in displaceable soils including sand, loam, and gravel
- Easily configured to pull in a wide range of pipe materials during the bore
How the GRUNDOMAT Works
Compressed air repeatedly drives the piston against the rear of the chisel head assembly. This action compresses a pre-tensioned steel spring, forcing the reciprocating stepped-cone chisel head forward to create a pilot bore. Continuous force then advances the main casing. Decades of field-proven performance have made the GRUNDOMAT known for exceptional accuracy and reliability.
Why GRUNDOMAT Outperforms Conventional Piercing Tools
Traditional fixed-head piercing tools often follow the path of least resistance, increasing the risk of deflection when encountering obstacles. The GRUNDOMAT’s patented reciprocating stepped-cone head actively hammers through difficult soil conditions and obstructions. This unique two-stroke action concentrates impact energy at the tool head, resulting in superior accuracy and consistent bore alignment.
Trenchless Benefits of the GRUNDOMAT System:
- Greater target accuracy than conventional pneumatic boring tools
- Simultaneous boring and pipe installation in a single operation
- Minimal disruption to traffic, buildings, and existing utilities
- Avoids costly surface restoration associated with open trenching
- Faster project completion timelines
- Simple setup and operation
- Small crew requirements
GRUNDOMAT Features:
- Patented reverse mechanism on 5" - 7" tools for easy reversing during a bore
- No need to stop the tool or rotate air hoses
- Hand-launched or cradle-launched operation
- Durable, low-maintenance construction
- Minimal setup for efficient, profitable jobs
- Community Impact and Long-Term Value
Trenchless technology reduces inconvenience for residents and businesses by keeping roads open and minimizing downtime. Precision installation techniques also reduce stress on pipes and conduits, contributing to longer service life and more reliable infrastructure.
As urban areas continue to grow denser, trenchless solutions provide a future-ready approach to expanding and maintaining utility systems without escalating costs or disruptions.
Georgia Underground Superstore - Your GRUNDOMAT Partner
Georgia Underground Superstore is proud to be an authorized sales, service, and repair center for TT Technologies GRUNDOMAT Piercing Tools. Our team provides expert product support, parts availability, and professional service to help contractors keep projects moving efficiently.
Learn more about the GRUNDOMAT Piercing Tool and available models here: TT Technologies GRUNDOMAT Piercing Tool Basic Packages
For pricing, service, or technical support, contact us today:
Phone: 800-245-8339
Email: ecommerce@georgiaunderground.com
Visit us at one of our convenient locations:
- 5158-G Kennedy Road | Forest Park, GA 30297
- 3801 Arapaho Rd | Addison, TX 75001
- 124 N Jim Thorpe Blvd | Prague, OK 74864
Whether you’re expanding your trenchless capabilities or maintaining existing equipment, Georgia Underground Superstore is your trusted source for GRUNDOMAT solutions and trenchless expertise.