- Infrastructure
- Conventional lines
- Heavy haul
- High speed
- Line with steep gradients
- Field of application
- Track
- Tunnel
- Working mode
- Continuous action
09-3X Dynamic E³
The key component of the 09-3X is the 3-sleeper tamping unit. It allows the machine to tamp three sleepers simultaneously during one single tamping process. Whether it’s maintenance operation or tamping newly laid track: compared to the continuous 2-sleeper tamping machine, the 09-3X model increases output by 30 to 40 %. And that’s not its maximum performance, but rather, an average value.
In 1996, the 3-sleeper tamping technology was introduced for the first time. Ever since, the concept has been used around the world and continues to live up to its reputation. Globally, the name 09-3X is synonymous with simplified worksite logistics, optimal utilisation of track possessions as well as reduced costs for administration and staff.

Fit for the future of the railway
The latest track maintenance machines use both the electrical energy from the contact wire and batteries to power the working drive. Our new E³ drive technologies reduce local emissions - of both pollutants and noise – to a minimum on the work site.
At Plasser & Theurer, we have taken the classical tamping machine to a new level. The Unimat 09-4x4/4S E³ uses the electrical energy from the overhead contact line not only for electrical traction during transfer travel. It is also used to power the tamping unit electrically for the first time. The crucial working parameters remain unchanged. If there is no overhead contact line available for current collection, we use a diesel-electric generator to supply electrical power.
Features
Enjoy the benefits of standardization with ModularCustomizing
We manufacture machines in our ModularCustomizing category based on a platform strategy. This makes maintenance, spare parts management, training, and approvals more efficient while tailoring them to your needs. More than 300 machine versions from the modular design kit. Thousands of configuration options.
Economic – Ecologic – Ergonomic
The latest track maintenance machines use both the electrical energy from the contact wire and batteries to power the working drive. Our new E³ drive technologies reduce local emissions - of both pollutants and noise – to a minimum on the work site. Introduced in 2015, Plasser & Theurer’s E³ machines stand for: Economic – Ecologic – Ergonomic.