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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INNOVATIONS Cat 966K XE Loader is Efficient, Comfortable, Sustainable Equipped with an advanced powertrain system, the new Cat 966K XE wheel loader delivers up to a 25 percent fuel‐effi‐ ciency improvement with optimum performance. The new model, introduced to the market at a special media event on Oct. 15‐16, in Peoria, Ill., meets the need for both efficiency and sustainability while simplifying the operator's interface and operating technique, according to the company. Efficiency and Performance The 966K XE has been engineered to deliver superior effi‐ ciency by utilizing an integrated Cat continuously variable transmission system. A hydraulic pump and motor (variator unit), allows for a smooth and continuous gear ratio change between engine speed and machine speed. The variator pro‐ vides this ratio flexibility while greatly reducing the heat load generated by the drive train when the machine is digging, pushing and climbing under heavy load. The continuously variable gear ratio of the variator also enables the engine to run at a more efficient operating range independent of ma‐ chine ground speed. The 966K XE is powered by a Cat C9.3 ACERT diesel engine, delivering a peak net horsepower rating of 220 kW (290 hp). Meeting the European Union Stage IIIB emissions standards, the C9.3 ACERT engine incorporates a high‐pressure common rail‐injection system for a clean, efficient burn. Developed especially for production loading for both 966K and 966K XE, Performance Series Buckets are standard and deliver faster fill times and better material retention to reduce cycle time and improve productivity. Operational Benefits With the 966K XE, transmission operation is automated and transparent to the operator. The machine is well bal‐ anced and easy to operate at extremely low engine speeds, providing optimal productivity and burning less fuel. While maintaining the ability to operate effectively in moderate applications, this machine delivers improved performance on grade and in aggressive applications. The operator has the ability to control maximum ground speed through the use of virtual gears to provide flexibility in various ma‐ chine applications. The engine can be controlled to operate more efficiently over a wide range of conditions. During deceleration, machine mo‐ mentum can be recovered as free energy to power imple‐ ments or the cooling fan, while significantly lower working engine speeds result in reduced soot build‐up for longer re‐ generation intervals, cutting fuel use further. Comfortable The 966K XE has just two pedals with reduced operating in‐ terface/mode complexity. In addition, the operator is free to concentrate on bucket fill and digging capabilities without the need for manual shifting. The operator can confidently utilize the machine while the integral power system control pre‐ vents engine over‐speeding and makes it nearly impossible to stall the engine while digging. When engaging the stockpile or quarry face the machine auto‐ matically reduces speed under full power, without the need for manual downshifting. Smooth and efficient directional changes reduce tire wear, without the need for operator input. In addition, releasing the pedals on a grade does not re‐ sult in rollback, providing greater control for the operator. Sustainable The engine runs at the most efficient speeds to reduce fuel consumption, which could lead to extended engine life. Fur‐ thermore, integrated retarding and modulated torque control could also result in increased tire and brake life. The 966K XE will be available in North America in the first quarter of 2013. Caterpillar, PRODUCT FEATURES: n Utilizes an integrated continuously variable transmission system. n Powered by a Cat C9.3 ACERT diesel engine, delivering a peak net horsepower rating of 220 kW (290 hp). n Smooth and efficient directional changes reduce tire wear, without the need for operator input. 6 ROCKproducts • NOVEMBER 2012

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