Geoprobe Machines84 Series77 Series66 Series54 Series42 Series

Probing Times Button

Model 7720DT Direct Push Machine

Drawing of Model 7720DT

Stroke 77 in. 1956 mm
Weight 6,850 lbs. 3110 kg
Width 60 in. 1524 mm
Length (folded) 96 in. 2438 mm
Height (folded) 89 in. 2260 mm
Height (unfolded) 177 in. 4496 mm
Lateral Movement (side-to-side) 33 in. 838 mm
Foot Travel 39 in. 991 mm
Extension 15 in. 381 mm
Down Force 35,000 lbs. 160 kN
Retraction Force 47,000 lbs. 214 kN
Hydraulic Pressure (system) 2,450 psi 169 bar
Hydraulic Flow Rate (system) 30 gpm 114 Lpm
Hammer System GH62 GH62
Percussion Rate 32 Hz 32 Hz
Torque (hammer motor) 560 ft. lbs. 759 Nm
Rotation Rate (hammer motor) 0-240 rpm (bi-directional)
Fuel Capacity (diesel) 15 gal. 57 L
Engine (diesel) Kubota, 4-cylinder turbo
Engine Power 54 hp 40 Kw
Ground Speed 0-4.5 mph 0-7.2 kph
Surface Load 3.7 lb/in2

0.26 kg/cm2

Water Transport Capacity 50 gal. 190 L
Winch Rating 3,000 lb. 1,362 kg
Winch Speed 0-75 fpm 0-23 m/min
     
Augerhead Specifications    
Torque (high torque/low speed) 3,000 ft. lb. 4067 Nm
Torque (low torque/high speed) 1,500 ft. lb. 2034 Nm
Hex adapter 1-5/8 in. 41 mm
Rotation speed (low speed/high torque) 0-105 rpm 0-105 rpm
Rotation speed (high speed/low torque) 0-150 rpm 0-150 rpm
*Unit specifications are subject to change without notice.
© Copyright 2008 by Kejr, Inc. Geoprobe Systems® is a Division of Kejr, Inc. [more]