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Doosan brings forward hybrid plans

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Chris Sleight

06 April 2009

Doosan Infracore plans to launch a hybrid excavator in the US in 2012, two years ahead of its previously announced 2014 development target.

Doosan confirmed it will target the 22 tonne sector with its first hybrid model. It says the new machine will burn -35% less fuel than a standard DX225, equating to savings of US$ 10000 per year.

Doosan also said it would be taking a similar approach to the one taken by Komatsu with the hybrid excavators launched in Japan last year. These use capacitors act as a slewing brake and capture energy when the operator turns the upper structure of the machine.

A statement from Doosan said, "The innovative Doosan hybrid excavator will be equipped with a diesel engine, electric swing motor, electric converter and ultra-capacitor that will store excess energy during turning and light-duty work."