66 in. (1676 mm) probe cylinder stroke allows use of 60
in. (1,524 mm) probe rodsOver 20 ton pulling capacity for today’s larger
sampling tools and deeper depthsEquipped with the powerful GH62 HammerHeavy Duty Undercarriage has a wider track that carries
more weight, adds more torque, reduces ground pressure and handles greater tool
weightWireless remote controlBuilt-in rotary spindle for concrete drilling,
augering, and anchoringEquipped with a hydraulic winch for handling augers and
tripping dual tube sampling toolsTwo-speed probe cylinder cycles from bottom to top in
less than 5 secondsPowered by a four-cylinder, 54 Hp, liquid-cooled Kubota
turbo diesel engineHydraulic movement in all three axes allows easy probe
alignment with tool stringAuxiliary hydraulic ports provide power for remote
The design of the Geoprobe® Model 6620DT direct push machine offers
the complete package. From auxiliary power sources, a workhorse hammer,
and a well-planned work area. The 12-inch tracks allows this direct push
machine to be used on concrete and pavement as well as off-road and
rugged terrain. The width of the machine is 60 inches with the robust
undercarriage providing more stability for probing and drilling. The
machine is equipped with augering capabilities, a winch to help with
tool placement, and a DH66 Auto Drop Hammer. The 6620DT Geoprobe can
flexibly switch from environmental to geotechnical work with little time
and effort. The ground speed of the 6620DT ranges from 4.5 mph for
quick field movement to a slow maneuvering speed. The machine
also includes a wireless remote control, onboard tool storage, and an
accessible engine compartment for quick systems checks.
Water Transport System provides 25 gallons of water in a polyethylene water tank.
Overhead Mast and Hydraulic Winch aids in heavy
lifting of large tooling and augers. Also helpful for tripping dual tube
samplers. Lifting capacity is approximately 3,000 pounds.
GA3000 Augerhead swings out from mount enabling 5 minutes changes from direct push. Capable of holes from 2.5 in to 9.75 in OD.
DH66 Automatic Drop Hammer allows geotechnical
standard penetration tests. Uses auxiliary hydraulics on machine for
repeatable and accurate blow count results.
Geoprobe 6620DT specifications