More runs instead of empty runs

With the Combiliner based on a walking-floor trailer, we are introducing another very flexible transport system. By installing the Combiliner module on the front wall of the walking floor, the functionality of the vehicle is extended by the transport solution for alternating transports of liquid and solid goods without conversion. The module includes the supply line technology, the flexible transport bag and the rotary lobe pump.

Innovative character

In its normal state, the walking floor trailer has a loading volume of approx. 73 m³. After the Combiliner module has been installed, there is still approx. 65 m³ of volume available for solid bulk materials. The supply lines are installed underneath the walking floor. The 6 inch hose connections can be mounted either at the rear of the trailer or at the height of the supports. Thanks to the use of a high-strength PVC/TPU membrane with very good chemical resistance, the tank can be filled not only with slurry, but also with water, liquid feed, liquid fertiliser and other liquids. Due to the quick and efficient dismantling of the module, duration approx. two to three hours, the payload is increased by approx. 1,300 kg when travelling without the Combiliner module. The module is detached at the front and can be moved via the walking floor to the rear, where it can be removed using a forklift or telescopic loader. Due to the short overall length, the trailer is compact and manoeuvrable. Optionally, the already high manoeuvrability can be further increased by a self-steering axle or OptiTurn.

Transport of feed and TÜV

Our Combiliners have been inspected by GMP and QS. The Combiliners can be certified within the scope of an audit by both companies. Please refer to the respective specifications of the companies. For the transport of liquid feed, we offer a corresponding feed line technology made of stainless steel and a modified rotary lobe pump. Like all our transport systems, the Combiliner has been successfully tested and certified by TÜV Süd.

Two-tank venting and flushing function

The use of a two-tank venting system makes it possible to preload. The open venting system ensures that the gas that forms can escape. The system also vents while driving. Due to the flange connections on the left and right of the flexible transport container, we can enable a flushing function in both directions with the help of the rotary lobe pump. Especially during longer transport times, the thick and thin phases of the liquid separate. The flushing function before emptying restores a homogeneous liquid that can be emptied evenly. To prevent the membrane from being sucked into the supply lines during the emptying process, we protect this area with wire baskets. We have installed flushing baffles in the wire baskets to achieve a flushing function in all directions.

Flexible transport bag

Our flexible transport bag has an engineer-calculated design that aids venting. The slightly rising shape forces the gas to collect at the highest point, gas collection bubble, where it is discharged through a 4 inch overflow hose into the two-tank system where it can escape.

Furthermore, during the winding process we use a pull tab that is welded completely underneath the transport tank. This pull tab absorbs the forces that arise when emptying the container, as we empty and wind the container at the same time. In this way, we achieve optimal emptying without residues. The pull tab protects the bottom of the flexible transport container as a second layer. The flexible transport container itself therefore does not come into contact with the floor of the trailer.

Further advantages of the system

The Combiliner transport combination can take over the tasks of two different vehicles - a great economic and ecological advantage. By using the Combiliner module in the front, the wide-opening rear doors can be used. The doors allow the transport of pallets, big bags, straw or other general cargo.



  • Avoidance of empty runs due to alternating traffic
  • Economic and ecological efficiency
  • Tested and certified by TÜV Süd
  • Suitable for transporting feedstuffs in accordance with GMP and QS requirements
  • Flexible transport bag can be extended by pump technology and rolled up hydraulically - EU patent
  • Flushing function
  • Filling/emptying possible with external pump
  • Pre-charging possible by two-tank venting
  • Connections at the rear and/or at the height of the supports
  • Weight-optimised rotary lobe pump, output up to 6,000 litres per minute
  • Seasonal removal of the Combiliner module in a short time to increase the volume of the walking-floor trailer
  • Optional inclusion of suction and pressure hoses in 6 inches

Features of flexible transport bag

  • PVC/TPU coated fabric with increased UV resistance
  • Kink resistant; no cracking after 100,000 kinks
  • Temperature resistance from - 30° C to + 70° C
  • Chemical resistance against slurry/acid/ammonium nitrate, among others
  • 3 years warranty


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Lise-Meitner-Straße 5
48691 Vreden


Phone: +49 (0)2564 – 950 95 41
Telefax: +49 (0)2564 – 950 95 44