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Environmental gains with aluminium bodywork

The new Scania OmniCity bus with aluminium body is a strategic move towards the full use of recyclable materials in heavy vehicles. The figure for Scania trucks and buses is now between 88 and 90 percent. Material selection is crucial and aluminium is ideal in this respect.

Building the body of Scania's new city bus fully in aluminium has several environmental benefits. A weight saving of 600 kg means increased passenger capacity and lower environmental impact per passenger kilometre.

The body structure and assembly method has been developed together with Alusuisse. The aluminium profiles are screwed or bolted together, instead of welded. This makes for easy assembly using hand tools. Easy assembly means shorter lead times in production. Repairs are also much simplified and local assembly can easily be set up.

The design is highly modularised and designed for maximum flexibility in meeting individual customer demands. Impact protection is integrated at the front and at the sides. Bonded windows add to the structural strength.

Ultimately, at the end of the bus’ service life, the aluminium can be fully recycled and used to produce new high-quality aluminium products.

Encouraging customer demand

Scania customers are increasingly focussing on environmental properties when they purchase a heavy vehicle. This applies in particular to vehicles used in urban environments, i.e. distribution trucks and city buses.

Environmental awareness is also emerging in other segments, where customers are anxious to promote their environmental profile, assuming their environmental responsibility on business grounds. Scania 4-series trucks and buses have been designed accordingly.

Improved combustion, higher efficiency, lower emissions

Lower exhaust emissions and better fuel economy have been top priorities during the development of the 4-series engine range. A diesel engine fuelled with low-sulphur and low-aromatics diesel fuel is highly efficient and constitutes the best alternative for the foreseeable future.

The development potential is far from exhausted. Scania’s objective is to further refine the diesel engine to make it even more efficient and at the same time cut exhaust emissions.

Alternative fuels

For some particularly sensitive environments Scania offers buses powered by alternative fuels. Scania is a major supplier of buses running on ethanol and this type of engine will later be offered in the Scania OmniCity bus.

Made from biomass or wine, ethanol is a renewable fuel that gives no net contribution of carbon dioxide. Combustion is somewhat cleaner than with diesel oil and the engine is comparatively efficient, operating, as it does, according to the diesel principle.

Hybrid-drive bus technology is also available from the Scania group. A small petrol- or ethanol-fuelled car engine is used to generate electricity on-board battery-powered city buses. Scania has also supplied a large number of buses running on natural gas to Australia.

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Scania is one of the world's leading manufacturers of trucks and buses for heavy transport applications, and of industrial and marine engines. With 22,000 employees and production facilities in Europe and Latin America, Scania is one of the most profitable companies in its sector. In 1995, turnover totalled approx. SEK 34,800 million and profits after depreciation approx. SEK 4,800 million. Scania products are marketed in about 100 countries worldwide and approximately 95% of total production is sold outside Sweden. Bus manufacture takes place in Sweden, Brazil, Denmark and Poland.