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Vertical drilling rig for confined spaces

Drilling rig KR 704-3G

The small drilling rig for many demanding applications in cramped spaces. With EU class V certified motor. 

Low weight meets performance and versatility.

Application in urban environments
In an urban environment and inside existing buildings, the KR 704-3G scores points with high performance, compact dimensions and a small weight. The drilling rig is powered by a 55 kW diesel engine which meets the newest EU and US exhaust gas standards.

Energy-efficient work
As with almost all KLEMM drilling rigs, the Energy Efficiency Package (EEP) is also included as standard with the KR 704-3G drilling rig. Fuel consumption and noise emissions are significantly reduced.

For demanding work
The kinematics of the drill mast allow the drill axis to be pivoted laterally (± 45°), improving manoeuvrability and access to drilling points in corners of the building. Special foundation work, especially micropiles for foundations and the underpinning of existing foundations with high-pressure injection columns, can be performed under difficult conditions.


Safe operation
The radio remote control of the drilling rig for all drilling, tramming and set-up functions is in accordance with EN 16228. 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.

Low headroom
The optional use of telescopic drill masts and a small rig width 950 mm provide ideal requirements for drilling work under challenging site conditions, such as door openings or low ceiling heights.

Powerful hydraulics
The hydraulics system rests on a load-sensing 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. The design also takes into account the use of a hydraulic drifter, among other things.


Ideal for cramped spaces

Underpinning, micropiles, injections, uplift anchors and cavity filling in confined spaces.


The drilling rig facilitates various configurations of the drill system, and the drill mast design.

Additional usage

Ideally suited to filling and stabilising underground cavities.


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

  • Rotary heads up to 25 kNm torque, e.g. KH 25
  • Hydraulic drifter KD 1108
  • Hydraulic clamping devices for casings up to max. ø 356 mm
  • Hydraulic clamping and breaking devices for drill pipes up to max. ø 254 mm
  • Lifting winch up to 10 kN pulling force and cathead
  • High-pressure injection equipment for one-, two- and three-phase systems
  • Duplex heads for cased bores up to ø 356 mm
  • Flushing heads for central flushing (air, water, suspension)

Details and options


The hydraulic jack-ups on the back of the machine increase stability when drilling and tipping stability. If necessary, the jack-ups can be removed.

Details and options

Machine control

The entire machine control is easily accessible. The readability is supported by an LCD colour display, intended for inputs.

Details and options

Radio remote control

The drilling rig can be operated from a safe distance using radio remote control for all drilling, tramming and set-up functions.

Details and options


The diesel engine has a sound-absorbing housing.

Details and options


The kinematics make it possible to erect, laterally pivot and slide the drill mast along its longitudinal axis.

Details and options

Telescopic crawler type

The robust crawler undercarriage has 3-rib steel plates. In this image, you can see the undercarriage fully retracted.

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 and individual solutions perfectly suited to the drilling task and drilling rig, all from one source.

Technical data

Engine type



Certified according to

EU Stage V // USA EPA TIER 4f


Rated power output

55 kW


Fuel tank capacity

100 l


Sound power level LWAd

106 dB(A)


Full body vibration A(8)eff

< 0.5 m/s2


Hand-arm vibration A(8)eff

< 2.5 m/s2


1st circuit

150 l/min (load-sensing)


2nd circuit

20 l/min


3rd circuit

20 l/min


Operating pressure max.

350 bar


Hydraulic oil tank capacity

250 l


Chassis type

Telescopic crawler type



960 - 1,350 mm


Crawler components



Tractive force max.

40 kN


Crawler speed

1.8 km/h


Chain width

250 mm (3-rib)


Ground clearance

325 mm



20 deg


Ground pressure*

89 kN/m2


Drilling rig weight

6.4 / 6.8 t


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


Type 164

Type 160 (HPI)


Frame length

2,390 mm

3,950 mm


Lattice mast extension (option)


2,000 + 2,000 + 1,000 mm


Single pass depth (option)


7,550 mm


Feed force

40 kN

25 kN


Retraction force

60 kN

40 kN


Feed rate

13 m/min

19 m/min


Retraction rate

8 m/min

13 m/min


Fast feed rate

64 m/min

75 m/min


Fast retraction rate

39 m/min

50 m/min


Rotary heads*

Hydraulic drifters*


KH 25

KD 1108


*) largest possible drill heads, depending on device configuration



Cavity filling

Thanks to its compactness, the drilling rig is preferred for use in environments being built on.


Micropile drilling

The drilling rig is suitable for creating foundations, e.g. through drilling for micropiles.


Cased bores

Cased bores can be drilled with the duplex head.

Do you need support?

Martin Bonzel

Regional Sales

Region: North America

+49 2761 705-138

+49 151 15124270


United States - West
BAUER Equipment America, Inc.
680 Conroe Park West Drive
77303 Conroe, Texas
United States
United States - Nord-Ost
ECA Equipment Corporation of America
1000 Station Street
15108 Coraopolis, PA
United States
Mike Brown
+1 540 625 0080