Rexroth A2F Series Pump & Motor | A2F12, A2F23, A2F45, A2F55 | Bent Axis Piston Pump

Rexroth A2F Series Bent Axis Axial Piston Fixed Pump & Motor

Product Overview: The Rexroth A2F series is a classic bent-axis axial piston fixed unit, versatile enough to function as either a hydraulic pump or a hydraulic motor. Its unique bent-axis design offers superior self-priming capabilities, operating pressures, and speed limits compared to traditional swashplate designs. Featured models like the A2F12R4P1, A2F23R4P4, and larger displacements such as the A2F45L1ZX and A2F55W1S1 are widely utilized in mobile machinery traction drives, crane winch systems, injection molding, and both open and closed hydraulic circuits.

Key Technical Advantages:

• Superior Power Density: The bent-axis geometry allows for a larger piston tilt angle, delivering massive torque and flow within a highly compact installation footprint.

• Exceptional Self-Priming Performance: Compared to swashplate pumps, the A2F series boasts improved suction characteristics, significantly reducing the risk of cavitation at high speeds.

• High-Pressure Durability: Engineered for high-pressure cycles, rated for 350 Bar (5000 PSI) continuous duty with peak support up to 400 Bar, ensuring structural integrity under heavy shock loads.

• Extended Service Life: Featuring reinforced bearing layouts and precision valve plate technology, it minimizes internal friction and significantly extends maintenance intervals.

• 100% OEM Standard Compatibility: Manufactured to strict Rexroth factory specifications, offering various shaft ends (Keyed/Splined) and mounting flanges (e.g., W1S1, R4P1 specs) for seamless “drop-in” replacement.

Detailed Models & Parameters:

• Core Series: Rexroth A2F Series 6 (Standard).

• Displacement Matrix: 12, 23, 45, 55 cm³/rev.

• Representative Models: A2F12R4P1, A2F23R4P4, A2F45L1ZX, A2F55W1S1.

• Pressure Ratings: Rated at 350 Bar (5000 PSI) continuous; Intermittent peak capability up to 400 Bar.

• Rotation: R (Clockwise/CW), L (Counter-Clockwise/CCW).

• Target Applications: Excavator swing drives, crane winch motors, concrete mixer drum drives, industrial hydraulic presses, and agricultural machinery.