Drilling rig KR 708-3GW

Drilling rig KR 708-3GW

The compact drilling rig for shallow geothermal work. Cased heat-loop bores in overburden soil, up to 300 m per individual probe length. Primed for the use of a downhole hammer.

Heat-loop bores for shallow geothermal energy

Energy-efficient work
As with almost all KLEMM drilling rigs, the EEP-Package (EEP=Energy Efficient Package) is also included as standard with the KR 708-3GW machine. The drilling rig adapts automatically to the respective situation where it is used and utilises its potential power to a maximum. This significantly reduces fuel consumption and noise emissions.Safe operation
The radio remote control of the drilling rig for all drilling, tramming and set-up functions is in accordance with EN 16228, making ergonomic operation and the best view of the drilling point possible. The drilling rig complies with EN 16228, and the “SPM” mode (Special Protective Mode) is available for working without a guard under special circumstances, and the “ROM” mode (Restricted Operation Mode) for manually changing the drill rods.

Increased performance
The latest design stage allows -among others- a usable length of 4 metres (@ 100 kN retraction force) for double rods and the attachment of a loading crane above the right-hand crawler.

Powerful hydraulics
The hydraulics system rests on a load-sensing double pump and a volume flow control independent of the load. For this new development, the operating pressure for drilling functions was increased to 350 bar.Flexibility
With the oscillating tracks installed as standard and the flexible kinematics, the drilling rig can also be used on uneven surfaces.

High drilling power
In combination with the motor-side power rating of 129 kW, the pump output for faster drilling progress has been increased as compared with previous models.

Advantages
Optimised for geothermal drilling
The design of the drilling rig is optimal for vertical or almost vertical heat-loop bores.
Modularity
The drilling rig allows for several layouts of the double-head drilling system.
Additional usage
Variably installable component carriers as preparation, e.g. for a downhole hammer operation.
Telematics
The optional KLEMM DataLink AIR module for the transfer of machine, process and service data into the cloud.