Rock Products

NOV 2012

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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FEATURE HYBRID EXCAVATOR FOCUSED ON FUEL SAVINGS CATERPILLAR'S 336E H IS DESIGNED TO BE SUSTAINABLE, OFFER GREATER FUEL EFFICIENCY AND TO LOWER OWNING AND OPERATING COSTS. By Mark S. Kuhar aterpillar Inc. unveiled the first model in its new line of hybrid ex‐ cavators, the Cat 336E H, at its Mossville Industrial Design Center on Oct. 16 at a special trade press event, "The Next Generation is Here." The new 336E H will be sold and serviced exclu‐ sively through the global Cat dealer net‐ work following the machine's official launch at bauma 2013 in Munich, Ger‐ many. The order board for the Cat 336E H opens in February 2013, with factory shipments beginning in March 2013. C The Cat 336E H uses a new hydraulic hybrid technology developed by Cater‐ pillar. "A hybrid is independent of any particular technology – it doesn't have to be electric," said Ken Gray, global product manager for large hydraulic ex‐ cavators for Caterpillar's Excavation Di‐ vision. "There are many ways to store and reuse energy, including our patented hydraulic hybrid system fea‐ tured on the Cat 336E H." "Caterpillar has developed, built, and tested electric hybrid excavators, but – until now – we had not found a hybrid approach that would actually lower our customers' owning and operating costs," Gray said. "Large excavators operate in high‐production applications in which fuel is a very significant operating cost for our customers. So the 336E H, the hybrid version of our workhorse 336E, is ideal for introducing our new hy‐ draulic hybrid technology, with its more than 300 filed patents. 16 ROCKproducts • NOVEMBER 2012 "No other commercially available tech‐ nology has higher power density than hydraulics, and that's why we selected a hydraulic solution to help our cus‐ tomers achieve substantial fuel savings," said Gray. "The 336E H also meets strin‐ gent Tier 4 Interim/Stage IIIB emission standards. It is extraordinarily quiet, too. So it's a socially responsible ma‐ chine for our customers to own, and they will sacrifice nothing in terms of performance, power, force, speed or production. Once more, the owning and operating costs for the 336E H are actu‐ ally lower than the standard machine. That's the value customers expect from Cat excavators." "Customers aren't going to choose the 336E H simply because it is sustainable. They will select it because it actually lowers their owning and operating costs, and maintains the performance of the 336E," said Gary Stampanato, vice president of Caterpillar's Excavation Di‐ vision. Technology "Caterpillar's corporate technology strategy centers on research and devel‐ opment in advancing technology to meet customers' needs today, which is what the 336E H does," said Tana Utley, Caterpillar's chief technology officer and vice president of the Product Develop‐ ment and Global Technology Division. "We're also continuously working on in‐ novations that we anticipate will meet their future needs. That's why we're continuing our research and develop‐

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