Road-rail Robot VLEX -
A new kind of road-rail vehicle
Road-rail Robot VLEX -
From track to road and back
Road-rail Robot VLEX -
Temporary shunting: Rental option
Road-rail Robot VLEX -
Intuitive innovative

Up to 600 tons tensile load on track or road

With the newly developed road-rail robot VLEX, Vollert offers an optimal solution for the light shunting operation up to 600 tons. The compact and manoeuvrable VLEX 20 and the robust VLEX 40 can be used for the movement of freight wagons or in tram and underground depots in many ways. Switching from track to road can be done quickly and easily by radio remote control – or directly to the power outlet. And all this completely emission-free as the road-rail solution has a battery-powered electric drive. The shunting of wagons is thus also possible in closed storage and production areas.

The Road-Rail Robot with optimum stability and traction

Track guide rollers are hydraulically lowered for rail travel. The hydraulic system ensures that the track guide units automatically readjust and compensate for each other. The steering can be hydraulically locked for the necessary stability on the rail. Solid rubber tires ensure optimum traction, additionally supported by the high dead weight of 4.5 tons (for the VLEX20) or 10 tons (for the VLEX40).

Transport companies, ports, logistics centers, industry – VLEX delivers flexibility

Due to its high maneuverability because of a smart steering concept, the intelligent drive technology and the optimum traction, the road-rail robot is easy and safe to use in all maneuvering operations. And that in a one-man operation: It can be intuitively manoeuvred over a long range with millimetre precision using the joystick remote control. A novel color design makes the VLEX particularly easy to control.

Various coupling systems, battery packs and ample extra and safety equipment are available to tailor the road-rail robot to your requirements.

A big twist: Articulation steering

Articulation steering means flexibility

Many shunting systems are too clumsy or involve high wear. The newly developed road-rail robot VLEX features a very special type of articulated steering. It is steered and controlled by radio control by means of four individually controlled wheel hub motors. Steering takes place via the speed control of the wheels, so that we could do without the steering cylinders commonly used in articulation steering systems.

The road-rail robot is thus compact and extremely maneuverable and therefore a real economic alternative to previously available shunting solutions.

360° turns are possible

The ingenious vehicle and steering geometry combined with the new steering control system enables turning radii that are gentle on the tires of only 7.2 m for the VLEX 20 and 10 m for the VLEX 40. If necessary, 360° turns on the spot are also feasible.

100% grip: Swing axle for maximum traction

One of the chassis axles is a swing axle. This ensures that all drive wheels always have maximum contact with the ground and can make use of their full power during rail and road travel. The vehicle, thus masters smaller obstacles as well as huckholes without any loss of structural stability and traction even on unpaved but load-bearing terrain.


Versatile use

This makes the road-rail robot ideal for a wide range of applications – whether in tram transport operation, under the harsh conditions of container loading in a port environment or shunting of industry cargo wagons. Braking is carried out electrically. The spring-loaded multi-disc brakes on all wheels keep the vehicle safely in Position.

Intuitive innovative: Remote control

The joystick remote control is particularly easy to use with the novel color system. Steering and travel as well as lowering the track rollers are operated intuitively and without the need for major training measures by means of color-coded buttons. The road-rail robot is controlled safely under all operating conditions thanks to the high coverage. In majority of the European Union the radio frequency (433/434 MHz) is not subject to registration or approval.

Everything at a glance

In addition, all other functions such as buttons for solo/loaded speed, locking of the steering function, working lights, the shunt coupling as well as an emergency stop button are always visible and selectable.

Extremely easy to maintain: Easy access

The complete steel frame has an extremely rugged design and is all welded.

Access to all important components as well as for battery replacement is possible at any time via large gull-wing doors. This makes maintenance of the road-rail Robot very easy. The recharge is carried out by means of an intelligent, high-frequency
charger, with gentle charging control based on the actual battery status. Equalizing and trickle charges are possible.

Operating data always visible

All operating data are graphically shown on a 4.3 inch color display and are read by means of LED bars. Settings or parameters can be changed and adjusted at any time. In addition, the road-rail robot has a LED battery discharge level display and a electrolyte level warning light.

Temporary shunting: Rental option

Another aspect for many customers is using the road-rail robot temporarily when required. With its small dimensions the VLEX is easy to transport and can therefore be used quickly anywhere. That is why we have developed a rental model for such tasks. Even in periods of high loading volumes, the VLEX provides temporary support, e.g. during harvest times for agricultural products or other goods and materials subject to seasonal fluctuations.

The rental option also offers the opportunity to test which equipment variant is the most suitable for the given operating conditions, gradients or curves.


Your contact

Michael Spohn

Senior Sales Manager

Telephone: +49 7134 52 465
Telefax: +49 7134 52 222


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