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xxx 2011-11-30

Break Through for TIER 4 Compatible Control Valves

Break Through for TIER 4 Compatible Control Valves

With their ML-18 Rexroth sets a new standard for energy efficient pressure compensated load-sensing control valves. The ML-18 design was focused on reducing power consumption on new TIER 4 applications such as skid steers, small wheel loaders and material handlers. In applications requiring up to 40 gpm (151 lpm) at 4000 psi (276 bar), the ML-18 can reduce pressure drops as much as 50 percent versus the competitors, therefore setting a new industry standard for reduced hydraulic power consumption.

The key features that enable such savings are the monoblock design which reduces the interface restrictions between sections, dedicated tank coring for the highest flow section and the use of backpressure valving for forced flow regenerating. To achieve these features Rexroth has employed sophisticated computer modeling to optimize the internal flow passages of the valve which creates optimal flow geometry, while at the same time minimizing the overall package size. The ML-18 architecture was developed so that OEM’s could choose electro-hydraulic as well as pilot operation for spool modulation, giving the ML-18 the flexibility to meet the control system of choice depending on the equipment requirements. While the base configuration for the ML-18 is a 3 spool mono-block design, it was developed so that the Rexroth M4 series sectional valves could be added to the end of the mono-block to give OEMs the required flexibility to optimize configurations as required in meeting their specific needs.

Bosch Rexroth Canada is the Canadian subsidiary of Bosch Rexroth AG, 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 34,900 associates generated approximately 5.1 billion euros in revenue in 2010.

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The Bosch Group is a leading global supplier of technology and services. In the areas of automotive and industrial technology, consumer goods, and building technology, some 285,000 associates generated sales of 47.3 billion euros in fiscal 2010. For 2011, the company forecasts sales of more than 50 billion euros ($70 billion) and a headcount of 300,000 by the end of the year. The Bosch Group comprises Robert Bosch GmbH and its more than 350 subsidiaries and regional companies in over 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 3.8 billion euros for research and development in 2010, and applied for over 3,800 patents worldwide. With all its products and services, Bosch enhances the quality of life by providing solutions which are both innovative and beneficial.

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