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Rexroth’s New A4VG Axial Piston Pump Offers Higher Nominal Pressure, Increased Power Density

Rexroth’s New A4VG Axial Piston Pump Offers Higher Nominal Pressure, Increased Power Density

With higher nominal pressure, increased power density and nine nominal parameters, the new Rexroth A4VG axial piston pump lowers emissions for high-performance travel drives used in mobile equipment.

Bosch Rexroth has redesigned its high-pressure variable pump A4VG for closed circuit applications. With increased power density, the new Series 40 helps mobile equipment manufacturers comply with stricter worldwide emission regulations.

The nominal pressure of the new series has increased by 700 psi to 6500 bar and nominal parameters have been adapted to counteract the reduced speed of the diesel engine and therefore lower input flow rates.

Nine nominal parameters, which meet the new requirements, make it easy to choose the new axial piston pump with swashplate design for any application. The redesigned pump case provides manufacturers with a variety of ways to include sensors, such as for monitoring swivel angle, high pressure, and rotational speed. The extensive and modular range of control units provides the optimal solution for every application.

Rexroth also completely redesigned the pump case, focusing on functionality and flexibility. A new bowl-shaped design avoids high-pressure transitions at sealing points, with some sealing points being eliminated entirely. Rexroth has also relocated the high-pressure ports to optimize arrangement of the hydraulic lines. If service is required, the new series uses connections for the O-ring seals to ensure all threads are leak-tight.

The new A4VG and the newly developed Series 71 of the Rexroth A6VM axial piston variable motor form an ideal combination with increased power density for hydrostatic travel drives.

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 38,400 associates generated approximately 6.4 billion euros in revenue in 2011.

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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 in the areas of automotive and industrial technology, consumer goods, and building technology in fiscal 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 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.

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