Geoprobe Model 7730DT |
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Geoprobe Model 7730DT
Direct Push Machine |
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A high-capacity direct push machine with a durable undercarriage, hollow
stem auger capabilities, and a wide-base platform.
The Geoprobe Model 7730DT 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.
- 77
in. (1956 mm) probe cylinder stroke allows use of 60 in. (1,524 mm) probe
rods
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Over 20 ton pulling capacity for today’s larger sampling tools and deeper
depths
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Equipped with the powerful GH60 Hammer
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Heavy Duty Undercarriage has a wider track that carries more weight, adds
more torque, reduces ground pressure and handles greater tool weight
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Wireless remote control
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Built-in rotary spindle for concrete drilling, augering, and anchoring
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Equipped with a hydraulic winch for handling augers and tripping dual tube
sampling tools
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Two-speed probe cylinder cycles from bottom to top in less than 5 seconds
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Powered by a four-cylinder, 75 Hp, liquid-cooled Kubota turbo diesel
engine
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Hydraulic movement in all three axes allows easy probe alignment with tool
string
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Auxiliary hydraulic ports provide power for remote equipment
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Compatible with Geoprobe® Tooling and Logging Equipment
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Water Transport System with High Pressure Nozzle
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Hydraulic Liner Extruder
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Machine Vise & Mount
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An
easy-to-use, well-planned control panel is located close to probing or
augering activities to assist in smooth field operation. A 12-volt outlet on
the side of the control panel can power various accessories or accommodate a
110-volt inverter for equipment such as the
Slug Test Kit,
Electrical Conductivity Logging System, or a peristaltic pump. |
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Engine
compartment provides easy access for
machine maintenance.
A
wireless remote control transmitter provides precise control of engine
functions as well as track movement. |
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Customers
have found the Model 7730DT to be highly productive in both shallow and deep
sampling venues. The stronger, wider undercarriage allows this machine to be
used on concrete or pavement, and enables the machine to readily negotiate
in tight, confining work areas and on off-road, rugged terrain. And with the
variety of options available, it's uniquely flexible to switch from
environmental to geotechnical work with little time and effort. |
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The heart
and soul of every Geoprobe® machine is the GH60 Hammer, which is standard
equipment on the 7730DT machine. The GH60 Hammer was designed specifically
for soil probing applications and hits at over 1,900 blows per minute and
delivers forces greater than 80,000 pounds per blow to the top of the probe
rod. The GH60 Hammer has bi-directional rotation and can break through
concrete in minutes. Use it with breaker bits or coring bits to make a clear
path for sampling. |
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Overhead Mast and Hydraulic Winch:
Designed to relieve operator fatigue associated with heavy lifting of large
tooling and augers. The overhead winch is also helpful for tripping dual tube samplers
and other inner rods. Lifting
capacity is approximately 3,000 pounds with a line capacity up to 65 fpm.
Individual components include a 12-foot tophead mast with
hydraulic winch along with 30-feet of wire cable. |
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Work
table, tool storage, machine vise, and
Hydraulic Liner Extruder are standard equipment on the Model 7730DT.
Optional
Equipment --
DH66 Automatic Drop Hammer:
Adds to the versatility of the machine by allowing geotechnical standard
penetration tests. Uses auxiliary hydraulics on machine for repeatable and
accurate blow count results.
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| Specifications: |
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Probe Cylinder Stroke: |
1956mm |
| Weight: |
4358kg |
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Width: |
1981mm |
| Length (folded): |
3658mm |
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Height (folded): |
2591mm |
| Height
(unfolded): |
4674mm |
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Lateral Movement (side to side): |
991mm |
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Foot Travel: |
991mm |
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Extension: |
762mm |
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Down Force: |
156 kN |
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Retraction Force: |
209 kN |
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Hydraulic Pressure (system): |
169 bar |
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Hydraulic Flow Rate (system): |
151 Lpm |
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Hammer System: |
GH60 |
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Percussion Rate: |
32 Hz |
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Torque (hammer motor): |
759 Nm |
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Rotation Rate (hammer motor): |
0-240 rpm
(bi-directional) |
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Capacity (diesel): |
114L |
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Engine (diesel): |
Kubota, 4
cylinder turbo |
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Ground Speed: |
0-7.2 kph |
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Surface Load: |
0.3 kg/cm² |
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Water Transport Capacity |
190L |
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Pressure Washer Output
(pressure): |
0-138 bar |
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Pressure Water Output (flow): |
0-11 L/min |
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Winch Rating: |
1,362 kg |
| Winch
Speed |
0-23 m/min |
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Augerhead Specifications: |
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Torque (high torque/low speed): |
5423 Nm |
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Torque (low torque/high speed): |
4067 Nm |
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Hexadapter |
41mm |
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Rotation speed (low speed/high
torque): |
0-105 rpm |
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Rotation speed (high speed/low
torque): |
0-150 rpm |
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