New hydraulic motors from Rexroth up to 26% more compact

A2FM 70 series

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.

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%– 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.

About Bosch Rexroth:

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, and Factory Automation 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, more than 31.100 associates generated sales revenue of approximately 5.4 billion euros in 2015. To learn more, please visit

The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

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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, healthcare telemedicine and software solutions. For more information, please visit , and


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