Coal Age

MAR 2013

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hydraulic excavators continued The Cat 6030B FS will be commercially available by the fourth quarter of 2013. enhance reliability and durability. The 6030B FS on display featured Cat power— two C27 diesel engines producing 1,530 hp. A full line of diesel and electric drive options are available. The B series also retains advanced hydraulics control, independent oil cooling, intuitive on-board electronics and durable structures. It also features Cat C95 GET with hammerless design for simplified removal and installation of bucket teeth. The 6030B FS payload of 33 tons remains the same as the 6030 FS that the new model replaces when it becomes commercially available in the fourth quarter of 2013. Machine weight remains at approximately 632,000 lb. Hitachi Improves the EX5600-6 Hitachi Mining's EX5600-6, as well as its other mining-class hydraulic excavators— the EX8000-6, EX2500-6, EX3600-6 and EX1900-6—have been highly valued by mining customers for their production and high availability, based on reliability. In response to requests by mine owners and operators to increase the production capability without significantly increasing the footprint, last year Hitachi Mining introduced the new EX5600-6. The EX5600-6 has a number of improvements, while retaining many proven features. It's somewhat heavier than its predecessor, has more engine horsepower, and the BE-backhoe version has increased bucket capacity. Estimated productivity increases are 17% for the short-reach BH backhoe, and 12% for the loader version. Loading time per truck has been lessened as well, according to Hitachi Mining. The bucket capacity for the EX5600-6 backhoe version has been increased to 44.5 yd3 from 38 yd3. The reach of the back- 32 www.coalage.com The loading capacity for the Hitachi EX5600-6 has been improved. hoe front attachment has been shortened and the engine output boosted to achieve higher productivity with a cycle time equivalent to the -5 version. The loader bucket capacity has been increased as well, to 38 yd3 from 35.5 yd3. Hydraulic pump output has been increased by 10%, without degrading conventional cycle time performance. This results in the higher flow rate at the same pressure. Higher flow rate means faster speed. Pump speed is increased through a change in the pump drive gear ratio change. The hydraulic oil cooler has changed. The manufacture of the core has been changed, along with the type of core row and fin shape. Fan speed has been increased to provide additional cooling capacity due to increases in hydraulic horsepower. Inside the cab, LED lighting has been adopted for longer life and less heat generation. An optional interface with major mine management systems commonly used in many mine sites, including Wenco Fleet Management Systems (provided by Wenco International Mining Systems Ltd., a subsidiary of Hitachi Construction Machinery Co. Ltd.) is also available. Although the Cummins engine model number remains the same, it is a different engine configuration to provide the increased horsepower. There is now a spin-on type filter for pilot system for easier serviceability. The EX5600-6 is offered in both backhoe and loader shovel configurations. The exclusive auto-leveling crowd mechanism increases job efficiency with one-lever control. Hitachi's computer-aided Engine-Pump Control coaxes optimum efficiency from the engine and hydraulic pumps. This innovative system senses load demand and controls the engine and pump output for maximum operating efficiency. For the undercarriage and hydraulic cylinder etc., parts common to the original EX5500-6 are used. The cab remains the The Hydropilot hydraulics on the Komatsu PC 4000 deliver precise control. March 2013

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