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

3230DT drill rig combines rotary and direct push functions

3230DT Drill Rig


Three and a three-quarter inch tooling from Geoprobe® is a versatile and robust tooling system that is a game changer for direct push applications.

Adding a few optional components opens up additional functions in the field.

With an inside diameter of three inches, the three and a three-quarter inch Probe Rods have an optimal casing for two inch Slim Prepack monitoring well installation.

A minimal borehole size maintains reasonable penetration rates.

The DT37 dual tube soil sampling system is used with the same Geoprobe® three and three-quarter inch rods to collect continuous soil samples that are approximately 2 inches in diameter.

Adding an expendable cutting shoe allows for the installation of two inch slim prepack monitoring wells in conjunction with collecting continuous soil cores.

If Standard Penetration Testing is necessary, adding a drive shoe and retractable point combination keeps the casing closed off during advancement.

This can be retracted at any time to allow a split spoon sampler to be advanced with an automatic drop hammer ahead of the three and a three-quarter inch tooling,

With a combination of uses in the field, the versatile three and a three-quarter inch tooling system is perfect for many projects, including monitoring well installation, dual tube soil sampling, and standard penetration testing.

Designed with 78 Series machines in mind, the three and three-quarter inch tools also provide the durability to handle the percussive force of the larger 8040DT and the 32 Series machines from Geoprobe Systems®.

For more information on our three and a three-quarter inch tooling, visit our website or call us at 785-825-1842.