Hamburg/Hannover, 16 February 2011 – STILL RX 70 HYBRID: The production has now started. The technology had already been presented ready for series at the CeMAT 2008. Hybrid technology is not only interesting from an environmental point of view but also economically. If used for more than 1 500 hours per year, the new technology will pay off in less than two years.

The new RX 70 HYBRID have a rated capacity of 3.0 and 3.5 tonnes and were developed on the basis of our highly successful RX 70 diesel truck. This truck already excels by using less energy than any other product in its class. Depending on the type of the application, the hybrid technology now available will reduce fuel consumption by another 15 percent. This is another contribution STILL makes to render intralogistics environmentally sustainable, because lower consumption of energy means lower CO2 emission.

To achieve this, the RX 70 HYBRID makes use of “free” energy recuperated from the kinetic energy when braking the truck. This energy is stored and can be used for the next acceleration.

Further benefits: The RX 70 HYBRID stacks more silently. As far as the engine is concerned less means more: instead of 44 Kilowatt (KW) the new RX 70 HYBRID only needs a 36 KW diesel engine to achieve the same turnover. Drive and lift movements are intelligently controlled – supported by an electrically adjustable hydraulic pump. Altogether the RX 70 HYBRID is another steppingstone towards higher efficiency and more environmental responsibility.

Efficient hybrid technology

The new RX 70 has two energy storage systems. Beside the diesel tank the truck is fitted with ultra caps mounted at the rear of the truck. These high performance double-layer compensators are charged with the energy released when the truck brakes. When accelerating, the energy from the ultra caps provides additional performance. The energy collected when braking is later used by the generator which is additionally propelled by the diesel engine to power the electric drive motor. All the related systems are linked up by the electronic controller which also controls charging and discharging of the additional energy storage.

Ultra caps are particularly well suited for the task because they can be quickly charged with high currents and release the energy equally fast. This supporting energy reduces the load on the diesel engine by approximately 30 percent. The contribution of the electric energy reduces the speed of the diesel engine during acceleration by about six percent.

The ideal application for the RX 70 HYBRID is in industries requiring frequent braking and acceleration, for example, when loading and unloading lorries in the beverage industry.

Visit us at the CeMAT (2 to 6 May 2011) in the outdoor pavilion P35.

The new STILL RX 70 HYBRID diesel truck.