Frequency control of tamping units
In addition to noise reduction, the frequency control enables fuel savings of up to 10 %. Moreover, it significantly reduces wear on the tamping units.
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fuel savings

In addition to noise reduction, the frequency control enables fuel savings of up to 10 %. Moreover, it significantly reduces wear on the tamping units.


On the basis of many years of experience, Plasser & Theurer has developed various lifting and lining units which fulfil both requirements and are well suited for specific operating conditions.
ROLLER LIFTING AND LINING UNIT
This work unit is fitted with two lining rollers and two roller lifting clamps per rail, gripping the rail under the rail head. They lift and line in one operation.
COMBINED LIFTING AND LINING UNIT FOR TURNOUTS AND PLAIN TRACK
This work unit has lifting hooks and lining rollers. On request, it is possible to mount additional roller lifting clamps. Lifting and lining is performed in one operation. The lifting hooks can be applied either under the rail head or under the rail base. The entire work unit can also be displaced in longitudinal direction. This ensures that the work unit can be adapted to every situation during turnout maintenance, achieving an optimum lifting and lining process.
Our high-quality tamping tines allow higher kilometre outputs and have to be replaced less often. In both cases, our original tamping tines have set the standard. Their design is crucial: they are produced as monobloc components forged in one piece and coated with a tungsten-carbide armour for all surfaces that come into contact with the ballast.


For turnout tamping in the area of the long bearers, we offer an automatic, synchronous 3-rail lifting unit for the diverging rail. Using the lifting and lining unit, the track is raised synchronously. The length of the telescopic arm adapts automatically to the course of the rails as the machine moves forward. Particularly on heavy superstructures, the stresses on rail fastenings, rails, and sleepers are within the permissible range at all times. Equipping the work unit with a slewing limitation prevents infringement of the adjacent track clearance gauge during work.
In the area of the work units, tamping machines can be equipped with lateral noise protection panels. This is important for the operation in densely built-up areas, for instance in Japan.
To counteract possible generation of dust during the tamping process and to provide the operator with good visibility, particularly when using noise protection panels, a water spray system can be installed at the tamping units. It is activated when the tamping units are lowered and switched off when they are lifted.


Fleet and maintenance managers can access information on the condition of their machines at any time, allowing for condition-based maintenance and enabling them to plan required measures ahead of time.
The exact machine position can be accessed at any time, facilitating operations planning and refuelling. The management receives informative reports, providing the basis for strategic decisions.