The Geoprobe Systems® Sonic Dual Tube 45 (SDT45) is a unique and versatile sampling system to advance an outer casing and an inner soil sampler simultaneously. The SDT45 sample (3.0 inch diameter) is collected in a clear PVC liner, providing a high-quality, representative sample. The 4.5-inch outer casing remains in the ground (cased hole) while the sample is retrieved with inner 2.25-inch. probe rods. The system provides optional bits based upon geologic conditions (soils and rock) for more efficient sampling and recovery. The versatile SDT45 system can be used for many applications including, environmental sampling, varying types of well installations, cased hole applications, geotechnical borings, and exploration projects of numerous types.
Capable of collecting samples in a clear PVC liner
Faster trip in and trip out time compared to 4x6
Use of 2.25-inch center rods results in significantly less operator fatigue
High-quality sample integrity
Provides cased hole while working in consolidated or unconsolidated material
Bit configurations for consolidated and unconsolidated material
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