Hyundai used INTERMAT to show its 22tonne hybrid excavator – the 220LC-9. Designed and developed in-house with electric components from the company’s electronics division, the Hybrid 220LC uses an electric motor for its slew functions, enabling a smaller engine to be fitted.“This combination means we can use a four-cylinder 98kW engine in the hybrid compared to a six-cylinder 118kW engine in the conventional R220LC-9,” explained Hyundai product engineer Joachim Van de Perre.
Designed and developed in-house with electric components from the company’s electronics division, the Hybrid 220LC uses an electric motor for its slew functions, enabling a smaller engine to be fitted.
“This combination means we can use a four-cylinder 98kW engine in the hybrid compared to a six-cylinder 118kW engine in the conventional R220LC-9,” explained Hyundai product engineer Joachim Van de Perre.
A motor-generator installed between the engine and hydraulic pumps takes care of electrical power generation and recovery.
“We can deliver a fuel saving of up to 25% on bulk earth moving, which can offset the higher purchase price in as little as 30 months,” said Van de Perre.
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