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Geoprobe® Geotech - 31 Series Rigs & Tooling

Video Summary:

This video looks at the geotechnical features of the Geoprobe® 3126GT, 3100GT, Interlocking Split Spoon, and Spring Assisted Swivel Pull Cap.

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1835 Wall Street
Salina, Kansas 67401
Phone: (785) 825-1842


Redefining drilling for over 30 years by producing solutions to meet or exceed clients’ needs, the most recent Geoprobe® innovations are advancing the geotechnical industry.

Drillers positioning for increased productivity and profit choose the Geoprobe® 31 series geotechnical drill rigs with innovative centerline head side shift and separate hydraulic circuit for mud pump. The end result – faster, easier, and safer drilling.

• Trim time between applications with all head functions positioned along the centerline head side shift, maximizing production and rig utilization. • Reduce physical strain of rotary work with hands-free rotation and feed, keeping the driller out of harm's way. • Utilize simple controls, creating a gentle learning curve for the seasoned driller as well as the new hire. • Mobilize power and versatility in a single rig, competing in multiple revenue streams including direct push, hollow stem augers, standard penetration testing, cone penetration testing, rock coring, mud rotary, and air rotary.

Engineered for safe geotechnical drilling in a small footprint on wide tracks, the 3126GT compact geotechnical drill rig nimbly navigates off-road without sacrificing power or versatility. Incorporating all the same drill mast features while mounted on a truck chassis, the 3100GT also provides full functionality and power for your typical geotechnical projects without the need for a class A/B CDL, aiding ability to quickly advance helpers to drillers.

Further enhancing job site efficiency, two recent Geoprobe® tooling innovations have excelled in the the industry thanks to their noticeable ease and value.

The self-aligning design of the 2-inch and 3-inch interlocking split spoons reduces bulging samplers and struggling to open samplers. Multi-lead threads require fewer turns to also speed up each test interval. In addition to simple assembly, and speedy sampling, the interlocking split spoons stand up to repeated pounding in tough geologies, ultimately saving you both field time and money compared to conventional split spoons.

The spring assisted swivel lift cap decreases physical effort for driller and helper as it self-adjusts to keep threads aligned when building tool strings. Minimize strain on forearms and wrists and reduce fatigue as the spring assisted swivel lift cap does the heavy lifting when adding or removing sections of rods.

When drill rigs and drilling tooling are designed, built, and supported as one, the end result is a highly refined system. Our mission as a drilling rig and tooling manufacturer remains steadfast: Geoprobe Systems® pioneers and delivers innovative, cutting-edge products for technical drillers – no matter the industry.

To learn more about these geotechnical drilling rigs and tooling, and all our products, visit our website at or call us at 785-825-1842.