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PI 091-14 Elchingen, 2014-11-18

New hydraulic motors from Rexroth up to 26% more compact

The new 70 series of the Rexroth A2FM bent-axis motor: depending on the size selected, the motors are up to 26% shorter than series 61.

A2FM 70 series from Rexroth now available in three pressure levels
Higher power in a smaller installation space: this is what construction machinery manufacturers require, and Rexroth fulfills their demands with the new A2FM 70 series bent-axis hydraulic motors. The motors are up to 26% shorter, and are notable for their high power density. At the same time, Rexroth has added two extra pressure levels to the new series, which now covers the pressure range up to 500 bar.

The much smaller dimensions in the new Rexroth axial piston motors with a 40° bent-axis design have been achieved by optimizing the design of the rotary unit and using an integrated flushing and boost-pressure valve. Depending on the size selected, the motors are up to 26% shorter than series 61. This improvement also reduces the weight of the motors by up to 38 percent – for instance, the weight of the size 107 with a pressure range of 300/350 bar drops from about 32 kg to around just 20 kg.

The 70 series, which has been developed to complement Rexroth's successful medium pressure pumps, has additional pressure levels to expand the range of application for the A2FM hydraulic motors. In addition to the maximum pressure of 450 bar provided by the previous series, variants with maximum pressures of 350 and 500 bar are now also available.

Thanks to three different pressure levels the A2FM is suited for cost-sensitive applications with lower pressure demands as well as for heavy duty applications with highest pressure demands. Three sizes, with displacements of 80, 90 and 107 cm3 respectively, are suited to a wide range of tasks in mobile working machines. Like the successful A2FM 61 series, the new fixed motors feature a high starting efficiency and are designed for speeds of up to 5,000 rpm. They can be used in both open and closed circuits.

The fixed motors can drive drums in concrete mixers, winches in mobile cranes or vibration drives in road rollers. They are also suitable for use in drilling equipment and rolling mills. Rexroth also combines the new motors with axial piston pumps to create ready-to-install, compact hydrostatic travel drives for use in snow groomers and combine harvesters, for example.

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, Factory Automation, and Renewable Energies to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, roughly 36,700 associates generated sales revenue of approximately 5.7 billion euros in 2013.

To learn more, please visit www.boschrexroth.com

The Bosch Group is a leading global supplier of technology and services. In 2013, its roughly 281,000 associates generated sales of 46.1 billion euros. (NB: Due to a change in accounting policies, the 2013 figures can only be compared to a limited extent with the 2012 figures). Its operations are divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 360 subsidiaries and regional companies in some 50 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. In 2013, the Bosch Group invested some 4.5 billion euros in research and development and applied for some 5,000 patents. This is an average of 20 patents per day. The Bosch Group’s products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is “Invented for life.”

Additional information is available online at www.bosch.com , www.bosch-press.com and http://twitter.com/BoschPresse

 

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Contact

Susanne Herzlieb
Maria-Theresien-Straße 23
97816 Lohr am Main
Phone: +49 9352 18-1573
susanne.herzlieb@boschrexroth.de




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