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Geothermal drilling rig

Drilling rig KR 805-3GW

The powerful drilling rig for heat-loop bores in shallow geothermal work.

Heat-loop bores for shallow geothermal energy

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 possible view of the drilling spot point and the danger zone. The geothermal drilling rig complies with EN 16228, and the "SPM" mode (Special Protective Mode) is available for working without an interlocking guard under special circumstances, and the "ROM" mode (Restricted Operation Mode) for manually changing the drill rods.

Energy-efficient work
As with almost all KLEMM drilling rigs, the Energy Efficiency Package (EEP) is also included as standard here. 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.

Flexible use
With the oscillating tracks installed as standard and flexible kinematics, the machine can also be used very efficiently on uneven surfaces and built-up environments.

Powerful hydraulics
The hydraulic 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. 

High drilling power
In combination with the engine power of 160 kW (or optionally 175 kW) and the increase of the operating pressure, the pump performance for faster drilling progress has been increased as compared with previous models. Casedheat-loop bores significantly over 300 m depth are possible. 

Comprehensive additional equipment
The drilling rig is prepared for guidance and discharge of drill backflow and cuttings, for handling of the drill rod and the casing, for the handling of probes and for much more tasks particular to geothermal drilling (Standard and options).

Machines designed for longevity and easy of maintenance, in tried and tested KLEMM quality.


The advantages

Optimised for geothermal drilling

The design of the drilling rig is optimal for vertical, almost vertical and inclined heat loop bores.


Many optimally coordinated components are available.

Recovery facilities

Extra recovery pulling unit in the clamping and breaking device. System retraction force 255 kN.


The optional KLEMM DataLink AIR module for the transfer of machine, process and service data into the cloud.

Can be adjusted to the task at hand

  • Loading crane or hydraulically erectable drill rod magazine
  • Double head drilling unit with geothermal flushing and backflow preventer
  • Rod handling system HBR 180-1
  • Plastic- or rubber coated grouser plates
  • Water pump, compressed air lubricator, washer, silencer
  • Power outlet for external hydraulic additional consumers
  • 3-part clamping and breaking device with hydraulic recovery function
  • Biodegradable hydraulic oil and bypass flow filtration

Details and options

EEP functionality

The drilling rig is equipped with the entire range of functions of the EEP: Such as automatic engine speed adjustment and Power Sharing (patented).

Details and options


The drilling rig can be equipped with an interlocking  guard. The guard complies with EN 16228. It is designed specially for rod handling with the on-board handling system HBR 180-1.

Details and options

Engine compartment

The engine compartment is easily accessible for maintenance purposes.

Details and options

Machine control

The machine control is protected but still easy to access. A colour LCD display and operator panel visualise important machine parameters and simplify use interaction.

Details and options

Radio remote control

Drilling, tramming and set-up functions can be controlled safely with radio remote control (Standard). 

Details and options

3-part clamping and breaking device

To secure the casing, the drilling rig has a clamping device, as well as a clamping and breaking device located above it for loosening and screwing threads. A pulling recovery device can be added to this.

Details and options

Component carrier

The drilling rig has a component carrier for the assembly of various optional components, e.g. for water pump, a washer, flushing valves and a compressed air lubricator. 

Details and options

Oscillating tracks

The drilling rig has two actively or passively oscillating crawler tracks. This makes both safe working on uneven terrains and loading processes easier. 

Details und Optionen

Loading crane

A loading crane with strong lifting moment, e.g. for handling geothermal heat loops, can be installed.

Details and options

Rod magazine

As an alternative to the loading crane, a hydraulically erectable rod magazine can be provided.

Details and options

Rod handling

The drilling rig has a lifting winch which swivels into the drilling axis hydraulically, and which makes handling of the drill rod and casing easier with the magnetic-mechanical rod manipulator.

Details and options

Double head drilling unit

The double head drilling unit is specially designed for geothermal drilling. It has, among other things, a flushing and backflow preventer.

KLEMM Benefits


Clear training sessions for your team. Custom-made training sessions at the Klemm factory or in-house for your team.

On-site service

Maintenance and servicing, expert inspections and repairs by experienced staff on site.

Spare parts

Speedy processing, even in emergencies outside of normal working hours, readily available storage technology.

Complete solution

Drilling equipment, accessories and individual solutions perfectly suited to the drilling task, all from one hand.

Technical data

Engine type

Volvo Penta TAD 583VE


certified according to

EU Stage V, EPA Tier 4f


Exhaust gas treatment




175 kW


DEF tank capacity

45 l


Fuel tank capacity

400 l


Sound power level LWAd

110 dB(A)


Full body vibration A(8)eff

< 0.5 m/s2


Hand-arm vibration A(8)eff

< 2.5 m/s2


1st circuit

240 l/min (load-sensing)


2nd circuit

240 l/min (load-sensing)


3rd circuit

30 l/min


4th circuit

20 l/min


5th circuit (option)

40 l/min


System pressure max.

350 bar


Hydraulic tank capacity

550 l


Chassis type

Oscillating crawler tracks


Crawler components




2,300 mm (2,460 mm w/ console)


Tractive force max.

148 kN


Crawler speed

2.0 km/h


Chain width

400 mm (3-rib)


Oscillating range

+13 / -13 deg


Ground clearance

335 mm


Ground pressure*

88 kN/m2


Gewicht Bohrgerät



*) Ground pressure of the machine with even weight distribution, taking the total weight into account


Type 202/13


Frame length

8,000 mm


Feed Force

130 / 65 kN


Retraction force

130 / 65 kN


Feed rate

5 / 9 m/min


Retraction rate

5 / 9 m/min


Fast feed ratel

27 / 55 m/min


Fast retraction rate

27 / 55 m/min


Typ H / 3-fold



38 - 254 mm


Recovery device



Stroke recovery device

350 mm


Retraction force recovery device

125 kN


Double head*


KH 39G / KH 21


*) largest possible drill heads, depending on rig configuration



Heat loop drilling

Cased drilling for heat loop, drill system D = 152 mm and d = 89 mm


Heat loop drilling

Cased drilling for heat loop, drill system D = 152 mm and d = 89 mm


Heat loop drilling

Cased drilling for heat loop, drill system D = 152 mm and d = 89 mm


Heat loop drilling

Cased drilling for heat loop, drill system D = 152 mm and d = 89 mm


Heat loop drilling

Cased drilling for heat loop, drill system D = 152 mm and d = 89 mm


Heat loop drilling

Cased drilling for heat loop, drill system D = 152 mm and d = 89 mm

Application range

  • Drilling depths up to 375 m
  • Casing depth up to 175 m
  • Drilling system 152 / 89 mm

(depending on soil conditions)

Do you need support?

Martin Bonzel

Regional Sales

Region: North America

+49 2761 705-138

+49 151 15124270


United States - West
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680 Conroe Park West Drive
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