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Caterpillar Unveils Hydraulic Hybrid Excavator

Posted on October 16, 2012

Caterpillar Inc. has unveiled the first model in a new line of hybrid excavators. The Cat 336E H is the company's first machine to use a hydraulic hybrid technology developed internally by Caterpillar. Field tests have demonstrated this machine will significantly lower customers' owning and operating costs, the company said.

"The 336 excavator – a recognized industry-leading workhorse in our product line – made the most sense as our first choice for applying the unique hybrid technology," said Gary Stampanato, Caterpillar vice president with responsibility for the Excavation Division. "The new 336E H hybrid uses as much as 25% less fuel than the standard 336E without sacrificing performance."

The 336E H is designed to capture energy when the machine slows down or stops, and then releases it as the machine accelerates. On a typical job site, an excavator may repeat the same cycle every several seconds, which represents a significant energy savings opportunity, Cat said.

The official launch of the Cat 336E H is scheduled for April 2013 at bauma, the world's largest construction equipment show in Munich, Germany. Cat dealers will begin taking orders in February, with factory shipments beginning the following month.

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