Geoprobe® Model 7720DT Direct Push Machine

The Geoprobe® Model 7720DT is a high-capacity direct push machine with a narrow platform for limited access areas and a longer stroke for added work space under the hammer. This machine is equipped with many of the features Geoprobe® customers are accustomed to, and with many new advantages to offer customers flexibility in all types of field conditions.

	Versatility Part of Model 7720DT's Appeal
	The Geoprobe® Model 7720DT combines a 77-in. stroke from a 7730DT machine with a 6620DT's undercarriage design. The result: additional working space under the hammer for dual tube and augering work with a more compact and lighter weight package than the 7730DT. This combination has quickly made the Model 7720DT a popular machine. "The common scope of work calls for soil sampling and monitoring wells; it's nice to take one machine to the project site. Overall, the performance is good and we really like its versatility." said a North Carolina 7720DT owner. Another 7720DT owner said, "We completed our project with 3-ft. dual tube tooling the same day we arrived. It was just another limited access, shallow, dual tube soil sampling job for us, but to our client it meant the difference between finishing and not finishing the project on time. His observation: 'Your crew was outstanding and that track rig was just amazing!'"
"If I could have only ONE Geoprobe®, it would have to be the 7720DT!" Dennis Samsel, Owner - Geo Logic, Inc., New Albany, IN
	Model 7720DT Features: 77-in. probe cylinder Allows use of 60 in. probe rods and samplers Over 20-ton pulling capacity Equipped with powerful GH62 Hammer Heavy-duty undercarriage Wireless remote control Built-in rotary spindle Hydraulic winch Two-speed probe cylinder Hydraulic movement in all three axes Auxiliary hydraulic power ports Compatible with Geoprobe® tooling and logging equipment
(above) Dennis Samsel, Geo Logic, Inc., works with his 7720DT machine on a Superfund site near St. Clairsville, OH. According to Dennis, the "cool" geology on the other side of the river shows the bedrock at a much higher elevation than where they were working.


Lee Hauber with Geo Logic guides the 7720DT through the opening of the Rhino Exhibit at the Indianapolis Zoo. The narrow width of the machine... 60 in. ... allowed it to squeeze through the opening designed for the rhinos to fit through. No rhinos or Geoprobe® operators were harmed during this filming!	With onboard water storage tank to decon tools and a hydraulic liner extruder mounted above the left side track, this 7720DT provides a compact work area for the field team. This machine, owned by Brown Bros Drilling in Hamilton, New Zealand, is at a monitoring well installation site at a marina in the "City of Sails", New Zealand.	The Probing Times Newsletter, Fall 2006 Edition, includes more customer experiences with the Model 7720DT and other Geoprobe tools and equipment. [Read more...]	The Spring 2007 Edition, includes more customer experiences.