Products / Soil Investigation Rigs

GTR 790

In addition to the GTR 780’s functionality this rig can be equipped with hydraulic breaker hammers or rotary drive heads. The dynamic probing rig on crawler GTR 790 has been developed from the GTR 780 version. Powered by a reliable Honda GX 390 petrol engine it is designed to support different add-on components. For example, dynamic probing operations with SPT characteristics or shallow core drilling can be carried out. Laid out as a fully hydraulic machine with integrated auto reverse valve and folding mast it features lateral steel boxes for rods and tools and take-up brackets for the hydraulic rod extraction unit, clamps, ground plate and an weather protection umbrella. The GTR 790 is a modern state-of-the-art soil investigation rig and the industry standard.

GTR 790

Here you can see a detailed product video of the GTR 790.

Tech­nical Data

Engine
Honda GX 390
Cylinder
1
Fuel
Petrol
Performance at 3.600 RPM
8,7 kW / 11,7 PS
Torque at 3.000 RPM
26,5 Nm
Displacement
389 cm³
Tank
6,1 l
Oil Capacity
1,1 l

Dimen­sions

Length
2.400 mm
Width
790 mm
Height Transport
1.400 mm
Height Mast
2.900 mm
Weight (without attachments)
780 kg

Addi­tional Data

Dynamic Probing

Dynamic Probing
DPL 10 kg
DPM 30 kg
DPH 50 kg
SPT 63,5 kg
Number of Blows
15 - 30 Blows per Minute
Dropping Height
500 mm / 750 mm
Window Sampling
up to 90 mm Diameter

Specifications Hammer

Weight
25 / 39 kg
Number of Blows
1.150 / 1.500 blows per Minute
Flow
20 / 30 Liter per min.
System Pressure
120 / 125 bar

Specification Drilling

Torque
700 Nm
Attachments
Jaws for Conduction

Specification Core Drilling

Diameter
100 mm / 150 mm
Attachments
Water Drilling Head
Length Head
500 mm

GTR 790

Quotation

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