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xxx 2012-09-18

MINEXPO 2012: More power makes mining vehicles more productive

MINEXPO 2012: More power makes mining vehicles more productive

Variable axial piston pump swashplate design for open-circuit hydrostatic drives.

Greater power density and optimized control behavior in the implement hydraulics boost the productivity of mobile working machines in mining operations. Rexroth's new high pressure axial piston unit A11VO series 40 fulfills all the necessary preconditions. In an open circuit, it generates a nominal pressure of 350 bar and a maximum pressure of 420 bar. Despite the extremely compact dimensions, the new design boosts performance and its numerous electrical and hydraulic control options improve the response of the implement hydraulics. OEMs are thus able to realize control systems which are perfectly tailored to the vehicle concerned.

The universal through-drive makes it easier to combine with a broad range of axial piston pumps, gear pumps and other hydraulic pumps, satisfying even the high power requirements of large-scale machines in mining operations. And the new model series also makes compliance with even stricter international emissions regulations easier. Available in five sizes from 110 ccm to 280 ccm, the series reduces noise emissions by up to 3 dB(A) compared to conventional pumps and boosts efficiency to 93 percent. That reduces diesel consumption and reduces the total cost of ownership.

Bosch Rexroth AG is one of the world’s leading specialists in the field of drive and control technologies. Under the Rexroth brand name, the company supplies more than 500,000 customers with tailored solutions for driving, controlling, and moving. Bosch Rexroth is a partner for Mobile Applications, Machinery Applications and Engineering, Factory Automation and Renewable Energies. The company provides customized solutions tailored to the needs and specifications of each individual market. As The Drive & Control Company, Bosch Rexroth develops, produces, and sells components and systems in over 80 countries. As part of the Bosch Group, Bosch Rexroth and its 38,400 associates generated approximately 6.4 billion euros ($8.9 billion) in revenue in 2011.

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In the U.S., Canada and Mexico, the Bosch Group manufactures and markets automotive original equipment and aftermarket products, industrial drives and control technology, power tools, security and communication systems, packaging technology, thermotechnology, household appliances, solar energy, healthcare telemedicine and software innovations. Having established a regional presence in 1906, Bosch employs over 22,500 associates in more than 100 locations, with sales of $9.8 billion in fiscal year 2011, per preliminary figures. For more information, visit

The Bosch Group is a leading global supplier of technology and services. According to preliminary figures, more than 300,000 associates generated sales of 51.4 billion euros ($71.5 billion) in the areas of automotive and industrial technology, consumer goods, and building technology in fiscal year 2011. The Bosch Group comprises Robert Bosch GmbH and its more than 350 subsidiaries and regional companies in some 60 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent more than 4 billion euros ($5.5 billion) for research and development in 2011, and applied for over 4,100 patents worldwide. With all its products and services, Bosch enhances the quality of life by providing solutions which are both innovative and beneficial. Further information is available online at and


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