Huge savings with Doosan electric compressor

By Chris Sleight23 March 2011

Doosan Portable Power has unveiled an electric powered air compressor, the HP750e, that offers massive savings in its purchasing costs compared to incoming Tier 4 Interim machines, as well as lower operating costs.

According to Doosan, compressors with Tier 4 Interim engines will cost up to +40% more to buy than current Tier 3 machines, due to the higher cost of engines with expensive aftertreatment systems to control exhaust emissions.

Doosan says the HP750e will cost about the same as the Tier 3 diesel model.

But aside from this factor, the company says running an electric compressor is inherently more efficient than a diesel version of the same size due to greater mechanical efficiencies.

These savings will be greatest if the machine is run from mains electricity, but costs will also be significantly lower if power comes from an appropriately sized generator.

Russ Warner, Doosan Portable Power's global air products manager said this was because generators are more efficient at extracting energy from diesel fuel than compressors due to mechanical factors and the amount of fuel burnt by a compressor while idling.

A further advantage of the electric system is that it features an infinitely variable motor, which allows for soft start ups and the selection of a range of pressures and flows - all of which can be programmed into the control panel.

There are also no emissions from the unit, and it is quieter than a diesel-powered machine.

The HP750e offers a maximum airflow of 750 cfm and has features common to other Doosan compressors, such as its rugged design and ease of transportation.

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