Rock Products

OCT 2014

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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ROCK products • OCTOBER 2014 www.rockproducts.com 32 LOADING & HAULING EQUIPMENT & TECHNOLOGY The new Volvo EC350E crawler excavator is an exceptionally pro‐ ductive machine that lowers operating costs through reduced fuel consumption and simple maintenance requirements in gen‐ eral applications, according to the company. Powered by a Tier 4 Final/Stage IV‐compliant Volvo D13 engine, the EC350E delivers powerful digging and breakout forces alongside reduced emis‐ sions and up to a 9 percent improvement in fuel efficiency. An integrated work mode system offers the operator a choice of four work modes according to the task at hand – I (Idle), F (Fine), G (General) or H (Heavy) – for optimum efficiency and machine performance. When the controls have been inactive for a pre‐set amount of time, the excavator can be programmed to automati‐ cally reduce engine speed or even shut down to further reduce fuel consumption and noise. Operators can keep track of both current and average fuel consumption via a gauge in the cab. The EC350E crawler excavator has been designed not only for ease of operation, but also for simple maintenance – maximizing uptime and minimizing costs for parts and servicing. The ma‐ chine's strong undercarriage and high tensile steel X‐shaped frame have been reinforced to ensure a long service life, while additional superstructure cover plates prevent damage to the underside of the machine from rocks and debris. The machine vitals are protected from overheating with a hy‐ draulically driven, electrically controlled cooling fan that activates only when needed, further minimizing fuel consumption and noise. The fan's optional reverse functionality blows air in the opposite direction, providing self‐cleaning for ease of mainte‐ nance. Daily service checks are quickly and easily completed with grouped service points and large wide‐opening doors, helping to get the most out of every operating shift. Volvo Construction Equipment, www.volvoce.com Volvo Crawler Excavator Focuses on Fuel The new Cat 824K Wheel Dozer builds on the solid performance of predecessor models with engineering refinements in its power train, operator station and structures, and in features that enhance safety, serviceability and machine management. With a net power rating of 405 hp and a maximum operating weight of 74,966 lb., the 824K is available with six blade configurations ranging in capacity from 6.6 to 21.1 cu. yd. to customize it for production dozing, stockpile dozing or cleanup work. The Cat C15 ACERT engine features an electronically con‐ trolled fuel delivery system, an engine idle shutdown system to conserve fuel by limiting idling time, and a delayed shut‐ down feature to ensure that the engine is not stopped until op‐ erating temperatures have stabilized. Drive train efficiency, fuel economy and travel speeds are further enhanced with the lock‐ up clutch in the Cat torque converter, a feature that reduces both drive train power losses and system heat. The 824K design integrates massive, purpose‐built structures and heavy‐duty components that can support multiple re‐ builds. The new dozer features a full box‐section rear frame designed to resist twisting forces and shock loads encountered in heavy dozing. teering cylinder mounts are designed to effectively dissipate steering loads into the frame, and axle mounts are heavy‐duty components that contribute to the overall structural integrity. This robust design results in significant cost savings and sus‐ tained optimum performance over the life cycle of the 824K. Caterpillar, www.cat.com Cat Wheel Dozer Delivers Efficient Productivity, Long-Term Durability

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