RTG Rammtechnik GmbH was founded in 1996 as a wholy owned subsidiary of BAUER AG and today forms part of the Bauer Maschinen Group of companies. Based on innovation, experience, technical know how and deployment of the most advanced technology, RTG has developed powerful plant and equipment which today is clearly setting high standards for the pile driving sector in specialists foundation construction.

RG System Pile Driver

Parallelogram Kinematic Linkage System

All RTG telescopic leaders feature the proven parallelogram kinematic linkage system. The high linkage point on the leader the torsion-resistant construction, the rapid adjustment of forward reach with the leader remaining vertical and the extensive range from min to max forward reach are the outstanding advantages of this kinematic system.

Telescopic Leaders

All RTG telescopic leaders are fabricated as rectangular cross-section in composite construction. Based on the experience gained from the BAUER rotary drilling rigs, RTG developed telescopic masts of a unique form of construction which combines maximum characteristic strength and stability with the lowest possible fabrication weight. The leaders have the capacity to transfer high bending moments as well as torques of up to 90 kN. RTG telescopic leader rigs are therefore also extremely good base machines for a variety of rotary drilling techniques.

Base Machines

The base machines, developed specifically for RTG telescopic leader pile driving equipment, are characterised by a particularly robust superstructure chassis, diesel engines designed specifically for the power requirements of RTG vibrators and a highly efficient hydraulic system. All RTG base machines can be fitted with an extendable undercarriage with a hydraulic locking system that minimises movement and thus offers optimum in design for pile driving operations. Both the hydraulic system and the operational functions of the base machine are monitored by a microprocessor. Control and machine operating data, as well as fault messages are graphically displayed in clear text. Optional systems are also available for recording the entire pile driving operation or monitoring vibrations in the vicinity of the site.

Product Range 

For detailed specifications, please click on the model name, eg RG 14T to download the pdf.

Applications available with RG System

Vibrator Systems

RTG vibrators are equipped with a stepplessly adjustable eccentric moment which ensures resonance-free start up and shut down of the vibrator. Force feed lubrication of the vibratory gearbox is accomplished by flushing lub oil through special oil ducts directly onto the gear wheels and into the bearings. Lub oil in connection with cooling and filtration of the return flow, separate oil changes can now be omitted for the latest RTG vibrators.

Auger Drilling

RTG rigs can be used efficiently as base machines for a variety of drilling systems due to their proven parallelogram kinematic linkage system, the torsion resistant mast construction and a highly efficient hydraulic system.

 One application is FOW piling, where a drill casing and an auger are drilled into the ground simultaneously by two rotary drives rotating in opposite directions.

 Predrilling for sheet pile installation is used when hard soil strata prevent driving of sheet piles. A long auger is used for loosening the soil in the sheet pile axis. It is driven by a rotary drive which can be mounted by a quick mounting system to the RTG rig.

Cutter Soil Mixing (CSM)

CSM originates from and uses components of the Bauer trench cutter technique. Cutter wheels break up the soil matrix and mix it with a cement slurry to a homogeneous soil-cement mortar. The system is applicable in various soil conditions - even in hard or layered strata. It is mainly used for the construction of cut-off and retaining walls and for stabilizing soft or loose soils (non cohesive and cohesive). The CSM extends the applicability of the method to much harder strata when compared to other methods of soil mixing.

Main advantages of the method are:

•High productivity
•The in-situ soil is used as a construction material
•Very little spoil which is important in contaminated areas
•No vibrations induced during construction
•Extended depths of up to 80 metres can be reached (when using rope suspended units)

Soil Mixing Walls (SMW)

The SMW system is used for the construction of cut-off and retaining walls. Three mixing paddles are driven by three independent rotary drives. They mix the soil with the slurry which is injected through the drill stem. A continuous wall is constructed by installing overlapping elements in an alternating sequence.

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