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Geotechnical Drill Rigs by Geoprobe®

Advancing the Geotech Industry

In a geotech industry ruled by rate-per-foot, Geoprobe® geotechnical drill rigs capable of swiftly sliding from rotary to automatic drop hammer, even to CPT or direct push — without having to move drill mast or machine — position you for increased production and profit.

Use the centerline head side shift on our geotechnical drill rigs to simplify traditional geotech techniques such as:

  • Augering
  • Mud rotary
  • SPT
  • Shelby tubes
  • Hard rock cores
  • CPT

Veteran drillers appreciate the attention to features addressing their field needs while the simplicity and safety of the geotechnical drill rigs mean your new drillers will quickly travel the learning curve thanks to:

  • Digital readouts providing instant feedback
  • Safety enhancing features
  • Easy operation, building confidence
  • Availability of training options

Owners depend on our ongoing commitment to innovation and industry-leading customer support to reliably ramp up daily production and geotechnical drill rig utilization rates. 

With rig service shops in North Carolina, Pennsylvania, Kansas, and Florida, you’ll have industry-leading drill rig service support nearby for your routine maintenance or more in-depth rig remounting and refurbishment work - keeping your geotechnical drill rigs in the field earning dollars. Our service technicians are backed by our team of engineers to ensure solutions not bandaids to issues. And our production processes mean your geotechnical drill rigs are constructed consistently and tested thoroughly to ensure easier service support.

Engineered with easy, fast, safe geotech sampling in mind, investing in Geoprobe® geotechnical drill rigs launches your geotechnical drilling production and profit ahead.


Don't see a feature you're looking for on your geotechnical drill rigs?  Give us a call


Our team of engineers thrives on collaborating with drillers while they continually innovate new designs for our line of geotechnical drill rigs. Our goal is to help make your tough job faster, safer, and easier. Partner with us and we'll work to decrease your time on the job while increasing your family time.

Contact Us

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


“Our Geoprobe® has exceeded production of our other rigs due to its versatility in sampling types and ability to handle drilling in hard clay and limestone. We can easily switch from continuous sampling with Shelby tubes, to blow counts, to auger drilling with efficiency. It is neither too large or too small to meet our needs, but instead perfectly fills the void. It has met the high demand of drilling thousands of borings and remains extremely reliable.” 


Tim Weston, President, MLA Geotechnical, Texas

Geoprobe® - 31 Series Overview

3126GT geotechnical drill features centerline head side shift

3126GT Geotechnical Drill Rig

Save time and effort swiftly sliding the innovative centerline head side shift into position for rotary, automatic drop hammer, event CPT or direct push. No need to move the geotechnical drill or drill mast on the compact, off road drill rig.

3145GT combines 31 series drill mast with crawler carrier

3145GT Geotechnical Drill Rig

Punch out power and pipe line projects with efficiency and performance of 31 series drill mast aligning all head and winch functions over the bore hole combined with creature comforts of a crawler carrier.

3100GT drilling truck for efficient geotech investigations without requiring a class A/B CDL

3100GT Geotechnical Drill Rig

Efficiently complete geotech investigations sliding between drilling functions all without the need for a class A/B CDL, safely bringing new drillers up the learning curve on the drilling truck.

Depend on Team Geoprobe®

Since 1987, Geoprobe® has manufactured innovative drilling rigs and tooling - engineered for efficiency and safety - simplifying drillers’ jobs and empowering their companies to succeed as productive and profitable leaders in the industry. When you partner with Geoprobe® you receive:

Customer-inspired Innovation

Engineering and building industry-leading drilling rigs, tooling, and techniques for the technical driller based on your needs to work safer and more efficiently.

Exceptional Value

Ensuring drilling rigs and tooling are created in conjunction – with consistent quality – to collect the highest-quality information with the most accurate result to get you to, into, and through the job efficiently.

Superior Service

Equipping you to do your best job and keeping you in the field via one-on-one expert sales and service technicians manning live support phone lines, shipping necessary parts same-day.