Skip to main content
A Geoprobe® 7822DT, connected to an air compressor, is used to install monitoring wells at an underground storage tank site by Cory Walker, Owner of CORTEK Drilling.

A Geoprobe® 7822DT, connected to an air compressor, is used to install monitoring wells at an underground storage tank site by Cory Walker, Owner of CORTEK Drilling.

Never underestimate the capability of the 7822DT!  Every day, customers become aware of applications they can offer their clients based on the power of the 7822DT.

According to Tom Wardell, Geoprobe® Sales for the Midwestern Region, “One of the really great, and sometimes overlooked, applications of a 7822DT is air rotary drilling,” he said. “I’ve had many customers ask me if the 7822DT has enough power for air drilling. My quick answer is a definite, ‘Yes, you can!’.”

The GA4000 Augerhead on the 7822DT, when paired with a side port swivel and an auxiliary air compressor, is all you need.

Several field applications that work well with this setup include residential geothermal well installation, installing anodes for underground storage tank remediation, or monitoring well or water well installation.

“Because of the versatility of this machine,” Tom added, “it gives companies the ability to expand their business from basic environmental sampling to the wide range of tasks that can be completed by using air rotary drilling.

7822DT Options for Air Rotary Drilling

Options are available for the 7822DT that make air rotary drilling possible.

The 78-in. Stroke allows plenty of room for mounting a side-port swivel, with a 1-5/8 in. hex, directly to the auger drive on the machine. “This is a quick and easy connection to the air flow line from an air compressor,” said Victor Rotonda, Geoprobe® Sales for Mid-Atlantic and Northeastern regions. “The swivel also comes with a stabilizer arm that connects to a mounting bracket on the 7822DT. This produces a solid connection to the drill string,” Victor explained.

The 7-in. Breakout Kit, which mounts to the ‘toes’ of the 7822DT, generates 17,500 lbf clamping force, and its hydraulic breakout wrench has over 6,000 ft-lbf breakout torque. The operator and crew can quickly and safely break apart tight joints on larger diameter drill rods.

The 7822DT can also be equipped with Feed Rate Controls for the Operator to adjust to changes in subsurface conditions. “It’s not surprising that many Geoprobe® 7822DT Owners now offer air rotary services,” Victor said. This seems to be one of the important options that make the 7822DT so attractive to customers.”

“What a machine!”, he added.

Having the ability to do air rotary with your 7822DT is often times overlooked. The 78 machine can be equipped with a GA4000 augerhead which provides plenty of power and rotation for air rotary drilling. What a machine!
Victor Rotonda • Geoprobe® Sales Mid-Atlantic and Northern Regions

Contact Us

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

7822DT rotary drilling rigs capability with direct push finesse

7822DT Drill Rig

From crowded street corners to far removed places, tackle various environmental, geotechnical and exploration applications with a single machine combining rotary drilling and direct push, saving time and money required to mobilize multiple drill rigs.

Photo Gallery

A Geoprobe® 7822DT, connected to an air compressor, is used to install monitoring wells at an underground storage tank site by Cory Walker, Owner of CORTEK Drilling.
Using a special enclosure to minimize escaping dust, a 7822DT is used to install monitoring wells in a roadway right-of-way. Air rotary drilling was a feature that convinced the machine’s owner, Cory Walker, CORTEK Drilling, to purchase the machine.
A GA4000 augerhead provides the power and rotation needed for air rotary drilling with the 7822DT.
Cory Walker, with CORTEK Drilling in Spring Hill, TN, is installing monitoring wells using air rotary drilling methods.

Related Articles

As a project engineer with a Ph.D., Aaron Crowley desired to own his own company. So in May 2022 he partnered with Julie Oliphant, owner of Athena Engineering and Environmental, to launch a sister company ATHENA DRILLING to complete a range of geotechnica

ID: 13413 | Date:

For some air rotary drilling is a rarity, but for EICHELBERGERS INC in Pennsylvania it’s a weekly occurrence using their 7822DTs. They’ve completed air rotary to 220 feet; they’ve drilled using 8-inch and 10-inch casing. On one project they set 10-inch ca

ID: 13412 | Date:

Starting his drilling industry career as a consultant, David Draybuck discovered he didn’t love writing reports. So in 2011, he and his partner gathered funds from closed 401(k)s and an SBA loan to buy a piece of used equipment and launch ENVIROTECH DRILL

ID: 13409 | Date:

Established in 2017 to provide drilling services to geotechnical engineers — focusing on mud rotary technology, PG ENVIRONMENTAL SERVICES struggled to break into the environmental market.

ID: 13407 | Date:

Passionate about delivering exceptional geotechnical, environmental, and instrumentation exploration services, the TERRACON CONSULTANTS INC office in Savannah, Georgia, went from being without in-house drilling resources in 2021 to running three Geoprobe®

ID: 13403 | Date: