GTR 780 Standard


















GTR780 DYNAMIC PROBING/ WINDOW SAMPLING RIG


This compact unit features dynamic probing procedures following DIN and SPT/AFNOR standards as well as efficient window sampling operations. Mounted on a rubber chain crawler carriage it is able to negotiate inclinations up to 30 degrees and to handle nearly all-terrain ground conditions. Since all functions are hydraulically assisted it is truly laid out for one-man operation. Two lateral rod boxes and special attachments carry all relevant accessories like rod extraction jack, slips/ball clamps, tools etc. . The fact that all equipment necessary for the field work is on the machine eliminates the need for additional transport and consumption of time.

A folding mast allows very limited transport dimension so the unit can be transported in mid-size vans like Volkswagen T4 or similar.

The complete equipment on the machine - reliable one man operation !

Optionally available:
mast-guided hydraulic breakers, rotary drives, diamond coring devices

Total weight: ca: 620-800 kg, depending upon layout and accessories


Undercarriage:
Mini excavator rubber chain crawler with 2 hydraulic gear motors and passive brake
1-cylinder-Diesel - or petrol engine with 2 direct driven hydraulic pumps
Overall width 780 mm; transport height ca. 1.250 mm, transport length ca. 2.100 mmm


Hydraulic system:
Tank 20 Liter bio-degradable hydraulic fluid
Pumps 160 bar
Hydraulic outlet for rod extraction jack with integrated autoreverse valve


Frame structure:
Adjustment range of the mast to reach vertical position in ondulated terrain
Lateral 15 degrees
Front 30 degrees
Rear 35 degrees
Drop weight: basic weight 10 kg + 2 x 20 kg + 13,5 kg
Drop height: 500 and 750 mm
Blows per minute: 5 - 40
Single blow energy: 50 - 475 Nm