Railway Technology is using cookies

We use them to give you the best experience. If you continue using our website, we'll assume that you are happy to receive all cookies on this website.

ContinueLearn More X

Plasser & Theurer Track Maintenance Equipment

Plasser & Theurer

Plasser & Theurer is a leading manufacturer of track maintenance machines worldwide and one of the largest exporters in Austria, having sold more than 15,500 heavy-duty machines to 109 countries.

Track maintenance machinery

Plasser & Theurer specialises in equipment for track maintenance, the laying and renewal of switches, crossings and plain track, theinstallation of overhead catenary and the monitoring the state of the track geometry.

The company is committed to providing products that meet the highest demands of quality and output and its comprehensive range of machines vary in size and output, allowing clients to select the best machine for the job.

Plasser & Theurer also continuously invests in research, development, new designs and improvements in the production process.

Effective tamping processes

The new Unimat 09-4×4/4S closes the gap between the compact machines and the large universal tamping machines, making turnout tamping a much easier process.

Outstanding tamping output is delivered through continuous working action and well-proven components, such as the universal tamping unit, four-rail tamping and three-rail lifting for tracks and turnouts. The well-proven one-sleeper tamping technology is incorporated here, in a new machine. Lower axle loads allow a greater field of application. These are the requirements for cost-efficient, high-quality turnout maintenance.

The Unimat 09-4×4/4S achieves lasting geometrical stability, due to complete tamping of the turnout. To achieve this, Plasser & Theurer has developed a number of technologies, such as individually laterally displaceable and turning tamping units, tamping tines that can be lowered individually and combined lifting and lining units for tracks and turnouts.

Complementing three-rail lifting and four-rail tamping, this system enables careful and complete treatment of the turnouts.

State-of-the-art equipment for control and measuring units

Plasser & Theurer relies on a special machine control system, the user-friendly Plasser Intelligent Control P-IC 2.0, for effective operation. A clear, touchscreen menu guide and universal operating units allow central access to all machine functions. There are additional operating controls in the armrests, which guarantee safe and faster operation.

Precise measuring systems are incorporated in the Unimat 09-4×4/4S, such as the CAL curve laser, to extend the measuring base even in turnouts and curves. The WIN-ALC automatic guiding computer takes over full control of the measuring systems during operation.

A data recording processor (DRP) can also be used to evaluate the measuring graphs and work graphs. There is also an option to electronically transfer the measured data.

Split universal tamping units

The Unimat 09-4×4/4S Dynamic has a well-known machine design, namely a continuous action, universal tamping machine with dynamic stabilisation. This machine is adapted to conditions in the UK and the control system is fully up-to-date.

Plasser & Theurer incorporates split universal tamping units with four-rail tamping together with a lifting unit and three-rail lifting in the subframe, which functions in cyclic action. The machine equipment is completed by a sleeper detection system and the CAL curve laser system.

This machine naturally complies with the UK railway group standards, meaning that the bogies had to be re-engineered for the machine. In the course of this new design, it was the first time Plasser & Theurer used the welding method according to the pulse controlled spray (PCS) arc curve.

Optimum control and diagnosis system

Complete integration of all operating, adjusting and diagnosis functions in the new P-IC 2.0 machine control system by Plasser & Theurer enables the operator to have access to all the relevant data from the workplace.

Increased productivity via remote maintenance

The Unimat 09-4×4/4S Dynamic incorporates a Plasser Datamatic telematics module, in addition to the P-IC 2.0 machine control system.

The core of this system is the transmission of live information data of the machine such as GPS position and machine status, as well as display of individual signals and evaluation.

Make an enquiry

Press Release

Plasser & Theurer to Present New Machines, Service Offers and Smart Assistance Systems at iaf 2017

Seventeen machines, new service offers and smart assistance systems - at this year's iaf, Plasser & Theurer is entirely dedicated to innovation for you.


Plasser & Theurer Images

Products and Services


White Papers

Related Projects

Press Release

6 April 2017

Seventeen machines, new service offers and smart assistance systems - at this year's iaf, Plasser & Theurer is entirely dedicated to innovation for you.

Read more
28 June 2016

The core element of the High Output Ballast Cleaning System No. 5 (HOBCS 5) is composed of the RM 900 ballast cleaning machine and the 09-2X / CM tamping and consolidating machine. Apart from excavating and cleaning the old material, the RM 900 also enables the supply of new ballast.

Read more
25 May 2016

On the high-speed line LGV Sud-Est (Ligne à grande vitesse Sud-Est) between Paris and Lyon renewal of the entire ballast bed has been carried out since 2009. Plasser & Theurer machines have been playing a crucial role in this major construction project.

Read more
11 February 2016

The close cooperation between Plasser & Theurer and Israel Railways began in 1994 with the first supply of an electronic measuring vehicle EM80.

Read more
2 December 2015

The maximum permissible axle load for line category C2 is 20t. Many Plasser & Theurer machines are suited for this line category.

Read more
6 November 2015

The new hybrid machines of the E³ series have been introduced to the public at a well-attended event held at Salzburg main station in the course of the Convention of the Austrian Society for Traffic and Transport Science (ÖVG).

Read more
14 September 2015

The EU Climate Goals 2030 comprise a comprehensive climate and energy package. Railway administrations such as Deutsche Bahn (German Railway) and Österreichische Bundesbahnen (Austrian Federal Railways) develop strategies for a sustainable network management. We want to help our customers work cost-efficiently and act flexibly under these conditions.

Read more
14 September 2015

Rail networks comprise stations, intersections, bridges / support bridges, tunnels and other buildings.

Read more

Regional Offices

Plasser & Theurer

Export von Bahnbaumaschinen Gesellschaft m. b. H.

Johannesgasse 3

1010 Wien


+43 1 515 72 0 +43 1 513 18 01 www.plassertheurer.com

Go Top