Hydraulic HousePumps & MotorsBOSCH REXROTH

BOSCH REXROTH A2F Series Axial-Piston Pump

Bosch Rexroth A2F is a high-efficiency fixed-displacement axial-piston hydraulic unit with a bent-axis design. Thanks to its unique design, it can be used equally successfully as a hydraulic pump or a hydraulic motor in open and closed circuits.

Nominal pressure 350 bar (35 MPa)
Maximum pressure 400 bar (40 MPa)
Design type fixed-displacement bent-axis axial-piston unit

Key technical specifications

Nominal pressure: 350 bar (35 MPa)
Maximum pressure: 400 bar (40 MPa)
Design type: fixed-displacement bent-axis axial-piston unit
Operating temperature: from -25°C to +90°C, with short-term bearing peak up to +115°C
Parameter table by model
The table below lists technical data for the most common A2F series sizes under nominal conditions

Key Parameters

Model Size	Displacement (cm³/rev)	Max. Speed in Closed Circuit (rpm)	Max. Speed in Open Circuit (rpm)	Max. Flow in Closed Circuit (L/min)	Max. Power at 350 bar (kW)
A2F10	9.4	7500	4700	71	41
A2F12	11.6	6000	3750	70	41
A2F23	22.7	5600	3750	127	74
A2F28	28.1	4750	2800	133	78
A2F45	44.3	4500	2850	199	116
A2F55	54.8	3750	2360	206	120
A2F63	63.0	4000	2550	253	147
A2F80	80.0	2250	2120	268	156
A2F107	107.0	3000	1900	321	187
A2F160	160.0	3650	2120	424	247
A2F200	200.0	2500	1650	500	292

01Key advantages of the Rexroth A2F series:
02High efficiency
03Spherical valve plate: uses a reliable spherical control surface.
04Self-centering: the cylinder block automatically aligns with the working surface.
05Low friction: low peripheral speed reduces internal losses and wear.
06High volumetric efficiency: maximizes hydraulic power with minimal energy loss.
07Mechanical strength and robust construction
08High load capacity: the drive shaft is designed for high radial and axial forces.
09Heavy-duty bearings: bearings designed for severe working conditions provide long service life.
10Resistance to pressure shocks: the bimetallic cylinder withstands sudden pressure spikes.
11Operational flexibility
12Dual function: operates as both a hydraulic pump and a hydraulic motor.
13Fluid compatibility: works with standard mineral oils, environmentally friendly fluids, and fire-resistant fluids.
14High operating pressure: withstands up to 400 bar nominal pressure and up to 450 bar peak pressure.
15Compactness: bent-axis geometry delivers high power in a compact housing.
16Easy system integration
17Standard flanges: equipped with SAE and ISO mounting options, simplifying installation in heavy machinery and equipment.
18Low noise level: optimized internal channels significantly reduce vibration and noise.
19Wide size range: available in different displacements, from 5 cm³ to 1000 cm³ per revolution.