Plasser UnimatExpress 2X-4x4 Dynamic

The universal tamping machine from OHLA ŽS, a.s. is a further development of the globally proven 09/4S series, which is characterized by high output while producing excellent quality. Short track possessions can be used optimally thanks to the machine’s continuous operating mode and a wide range of assistance systems.

The new machine series was specifically designed for the strict normative requirements of the European market. Equipped with the European ETCS train protection system, the machines fulfil the specifications of the TSI 2023. Thanks to the new P-IC 3.0 machine control system, they also meet the requirements of the Cyber Resilience Act.

The Unimat Express series has all the equipment on board to achieve perfect tamping results. As a universal tamping machine, it covers a wide range of applications: it is used for tamping plain-line tracks as well as turnouts and siding tracks.

Customers can choose between two 2-sleeper tamping unit options: a flexible 8x4 tamping unit with eight independent tamping unit segments, each fitted with tilting tines, or a 2X-4x4 tamping unit, which combines a plain-line tamping unit with a universal tamping unit, offering an excellent balance of flexibility and maintainability.

In order to increase productivity and to reduce track closure times, staff, and thus costs, a Dynamic Track Stabilizer (DGS) is integrated into the UnimatExpress tamping machine. Track maintenance, including stabilization, is carried out in a single pass. Increasing the lateral track resistance following track maintenance and carefully anticipating the initial settlement of the track reduces the number of low-speed sections and significantly improves track position durability. This allows maintenance intervals to be extended by up to 30% and reduces maintenance costs.

Digital application options are available for the UnimatExpress series, transforming the machine into a data-driven work platform. The integrated Plasser InertialGeometry measuring system enables both high-precision post-measuring under actual axle load for work documentation using DRP as well as rapid pre-measuring for the work process using SmartALC – at speeds of up to 100 km/h. An extension featuring the Plasser ReferencedGeometry fixed-point measuring system provides precise reference points for the absolute track geometry and automatically calculates the required correction values. Plasser InfraScan collects additional data on the track infrastructure and adjacent structures. This data can be used to analyse the structure gauge, ballast distribution, measurements of the track platform and contact wire positions as well as the distance to the adjacent track. Systems such as Plasser TampingControl and Plasser TampingAssistant support operating staff during the tamping process by providing measuring data and assistance functions.

At the heart of the portfolio are defined country packages that enable cost-effective integration of the ETCS and extend the operating radius of the machines beyond national borders. Within a country cluster, the machines are equipped with ETCS as well as national train protection systems and can be deployed flexibly and efficiently across borders. For countries outside Europe, the machines are also available without ETCS.