With variable-width undercarriage
Variable-width undercarriages deliver high levels of performance in terms of stability, while still facilitating transportation.
Telescopic undercarriages
Designed for high-load applications, telescopic extendable undercarriages provide wide extension and excellent operational stability.
Details
Thanks to the extension system and sliding profile integrated into the frame, the telescopic configuration ensures rigidity and precision during operation. Designed to withstand continuous stress, they maintain a wide and stable track width during operation while remaining compact when retracted.
Optional
We support our clients with precise technical consultancy, assessing machine usage in order to identify the most suitable undercarriage design specifications for its intended function.
Applications
They are ideal for drilling applications, such as augers, cutters or foundation drilling rigs. These solutions offer maximum extension during operation and compact dimensions during transport, with guaranteed structural stability.
Telescopic undercarriages with removable side frames
Telescopic undercarriages with removable side frames are designed for applications that require both operational stability and optimised transport dimensions.
Details
The removable side frames reduce the machine’s overall width, simplifying logistics through a separable structure that does not compromise undercarriage performance.
Optional
We offer a targeted design service, capable of delivering solutions tailored to the specific application and logistical constraints.
Applications
They are ideal for drilling machines that require not only operational stability but also reduced dimensions to facilitate transportation.
Opposed extendable undercarriages
Featuring a symmetrical structure, sliding guides in the main bodies and a short extension stroke, opposed extendable undercarriages are the ideal choice for heavy-duty applications.
Details
Undercarriages with opposed extensions are designed with the sliding guides in the main bodies. They provide a more robust structure thanks to the H-shaped symmetry, which improves load distribution, while the reduced extension stroke makes them ideal where extensive widening is not required.
Optional
We offer technical consultancy to analyse the machine’s application and define the most effective design characteristics.
Applications
They are suitable for machines that perform constant and repetitive operations, such as those used in the demolition sector.
Opposed extendable undercarriages with removable side frames
Thanks to removable side frames, extendable undercarriages with opposed extensions combine robustness and versatility, meeting transport constraints without compromising stability or performance.
Details
The removable side frames simplify machine transport by reducing the overall dimensions, while maintaining the structural strength of the undercarriage.
Optional
We design bespoke solutions tailored to specific application requirements and capable of effectively addressing dimensional and logistical constraints.
Applications
Designed for heavy demolition work, these undercarriages ensure strength and operational precision. They allow compliance with transport regulations without sacrificing structural solidity.
Parallel
Designed to withstand the most demanding stresses, extendable undercarriages with parallel extensions combine robustness and control, ensuring stability even in extreme operating conditions.
Details
The parallel, symmetrical extensions are welded to the main bodies on separate, adjacent axes. This configuration results in a longer frame that significantly reduces play, enhancing precision and structural rigidity under variable and dynamic loads.
Optional
We develop structures engineered to integrate precisely with the machine frame and configurable on request to meet specific logistical requirements or site regulations.
Applications
These are particularly well suited to machines such as compact tracked cranes, aerial platforms and drilling rigs. They ensure operational accuracy and stability even during vibration-intensive operations.
Applications
Ustec undercarriages form the base of numerous applications, including demolition, drilling, recycling, forestry and more. Discover the solution best suited to your industry.
Explore our other products
Fixed track
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Side frame pairs
Go to the pageEngineering
We are a family-owned company and a technological tailor, where every project is carefully developed and manufactured in close collaboration with the client, drawing on our full expertise.
- Careful selection of components
- Attention to manufacturing details
- Parts testing
Ustec services
Our company offers a complete service designed to listen to and meet client requirements. Our extensive industry experience allows us to seamlessly manage every stage – from engineering to the production of state-of-the-art components and comprehensive after-sales support.
Undercarriage spare parts
Immediate availability for all types of spare parts
After-sales support
Rapid technical support, wherever and whenever you need it
From fixed to extendable undercarriages
Upgrade your undercarriage with conversions from fixed to extendable







