Bosch Rexroth A2FO Series Fixed Piston Pump

The Bosch Rexroth A2FO Series is a robust, high-pressure axial piston pump featuring a bent-axis design, engineered for open-circuit hydrostatic drives. Renowned for its exceptional power density and high efficiency, this fixed displacement rotary oil pump is capable of continuous operation at pressures up to 400 bar. It is widely recognized as the ultimate hydraulic power source for heavy-duty mobile applications, including tractor hydraulics, forestry equipment, and construction machinery.

Key Features:

Series: A2FO (Series 6x)
Design: Bent-Axis Axial Piston (Fixed Displacement)
Max. Pressure: 400 bar (Continuous) / 450 bar (Peak)
Model Highlight: A2FO90/61R-PBB05 (90 cc/rev)
Application: Mobile & Industrial Hydraulics.

Product Overview The Rexroth A2FO Fixed Piston Pump is designed to deliver maximum performance in demanding environments. Unlike swashplate pumps, the A2FO utilizes a bent-axis configuration. This allows the pump to achieve a larger tilt angle (typically up to 40 degrees), resulting in a highly compact unit with a massive power-to-weight ratio. The flow rate is directly proportional to the drive speed and the fixed displacement size.

Why Choose the Rexroth A2FO Series?

Exceptional Pressure Ratings: With a nominal pressure of 400 bar and peak pressure capabilities of 450 bar, it effortlessly handles heavy lifting and high-torque tasks.
Rugged Tapered Roller Bearings: The specially designed bearing system absorbs high radial and axial loads, significantly extending the pump’s service life, even in extreme agricultural applications.
Compact & Efficient: The bent-axis design not only saves installation space but also ensures excellent volumetric and mechanical efficiency, reducing heat generation.
High Operating Speeds: Capable of running at high rotational speeds without compromising durability or fluid flow stability.

Common Applications:

Agricultural Machinery: Tractor hydraulic PTOs (Power Take-Off), Harvesters.
Construction Equipment: Concrete pump trucks, Excavator auxiliary circuits.
Forestry: Feller bunchers, Log splitters.
Industrial Drives: High-pressure press machines and testing rigs.

Specification	Value / Description
Product Type	Fixed Displacement Axial Piston Pump
Design Type	Bent-axis design (Open circuit)
Series	Series 6 (Models 61, 63)
Displacement Range ( $V_g$ )	5 cc/rev up to 1000 cc/rev
Nominal Pressure	400 bar (5800 psi) – For sizes 10 to 200
Peak Pressure	450 bar (6500 psi)
Fluid Compatibility	Mineral oil (HL, HLP), Environmentally acceptable fluids
Model Breakdown	A2FO 90 / 61 R – P B B 05
– A2FO	Axial piston pump, fixed displacement, bent-axis
– 90	Size: 90 cm³/rev
– 61	Series: 6, Index 1
– R	Direction of Rotation: Right (Clockwise)
– P	Shaft: Parallel keyed shaft (DIN 6885)
– B	Mounting Flange: ISO 4-hole
– B	Port Connections: Rear ports, threaded/flanged
– 05	Standard version