Rexroth A2FK Series Hydraulic Pump | A2FK Fixed Displacement Axial Piston Pump Replacement

Model Number	A2FK12R4P4, A2FK5R4P4

Product Description

Genlu Hydraulic proudly introduces our A2FK Series (covering 6, 10, 12, 23, 45, 55 cc/rev displacements) high-performance fixed displacement axial piston pumps. This series is engineered as a seamless, high-value replacement for the Rexroth A2FK series. Purpose-built for industrial hydraulic power units and heavy-duty drive systems, the A2FK series is celebrated for its high volumetric efficiency, long-life bearing support, and reliability under extreme operating pressures. Genlu guarantees 100% Drop-in Interchangeability in mounting dimensions, shaft splines, and port interfaces compared to original Rexroth units. Every A2FK pump is validated through 100% simulation testing to ensure performance parity with OEM standards under rated load conditions.

Technical Specifications

Product Series: Rexroth A2FK Series Fixed Displacement Axial Piston Pump
Configuration Models: A2FK6, A2FK10, A2FK12, A2FK23, A2FK45, A2FK55
Displacement Range: 6 cc/rev to 55 cc/rev
Rated Operating Pressure: 35 MPa (350 bar)
Peak Pressure: 40 MPa (400 bar)
Max Operating Speed: Up to 3000-5000 rpm (model dependent)
Control Mode: Fixed Displacement
Rotation: Clockwise (R) or Counter-Clockwise (L)
Structural Design: Bent-axis piston design

Key Technical Advantages:

Advanced Bent-Axis Engineering: The signature bent-axis design significantly enhances volumetric efficiency, providing stable flow output at high pressures while minimizing internal leakage.
Reinforced Roller Bearings: Integrated high-capacity tapered roller bearings handle significant radial loads, ensuring longevity even when subjected to belt or chain drive side loads.
High-Pressure Sealing: Premium oil seals are specifically optimized for continuous industrial duty, delivering superior resistance to dust ingress and high-pressure oil seepage.
Precision Valve Plate Interface: Hardened and ground cylinder blocks and valve plates ensure minimal wear at high speeds, guaranteeing consistent performance throughout the unit’s operational lifecycle.

Application Areas:

Hydraulic Power Units: Industrial power packs and light industrial automation equipment.
Construction Vehicles: Main hydraulic power sources for dump trucks and small construction machinery.
Industrial Drives: Hydraulic motors requiring constant flow velocity and auxiliary lubrication systems.

Expert Maintenance Tips:

Manage Inlet Vacuum: Despite high-pressure resilience, the A2FK is sensitive to inlet suction resistance. Ensure inlet hoses are adequately sized to prevent cavitation, which can cause severe damage to internal components.
Strict Contamination Control: With micron-level internal tolerances, enforce filtration standards of ≤10µm. Regularly monitor hydraulic fluid for water content and metallic particulate presence to preserve the piston assembly.
Ensure Case Drain Integrity: Always ensure the pump case drain line is routed directly to the reservoir without obstruction. High backpressure is the primary cause of premature shaft seal failure in this series.

Related Models：

A2FO5/61R(L)-V(P)A(ZBP)B06
A2FO5/61R-PBB06 A2FO5/61L-PBB06
A2FO5/61R-PAB06 A2FO5/61L-PAB06
A2FO5/61R-PPB06 A2FO5/61L-PPB06
A2FO5/61R-PZB06 A2FO5/61L-PZB06
A2FO5/61R-VPB06 A2FO5/61L-VPB06
A2FO5/61R-VAB06 A2FO5/61L-VAB06
A2FO5/61R-VBB06 A2FO5/61L-VBB06
A2FO10/61R(L)-V(P)A(ZBP)B06
A2FO10/61R-PBB06 A2FO10/61L-PBB06
A2FO10/61R-PAB06 A2FO10/61L-PAB06
A2FO10/61R-PPB06 A2FO10/61L-PPB06
A2FO10/61R-PZB06 A2FO10/61L-PZB06
A2FO10/61R-VPB06 A2FO10/61L-VPB06
A2FO10/61R-VAB06 A2FO10/61L-VAB06
A2FO10/61R-VBB06 A2FO10/61L-VBB06
A2FO12/61R(L)-V(P)A(ZBP)B06
A2FO12/61R-PBB06 A2FO12/61L-PBB06
A2FO12/61R-PAB06 A2FO12/61L-PAB06
A2FO12/61R-PPB06 A2FO12/61L-PPB06
A2FO12/61R-PZB06 A2FO12/61L-PZB06
A2FO12/61R-VPB06 A2FO12/61L-VPB06
A2FO12/61R-VAB06 A2FO12/61L-VAB06
A2FO12/61R-VBB06 A2FO12/61L-VBB06
A2FO16/61R(L)-V(P)A(ZBP)B06
A2FO16/61R-PBB06 A2FO16/61L-PBB06
A2FO16/61R-PAB06 A2FO16/61L-PAB06
A2FO16/61R-VAB06 A2FO16/61L-VAB06
A2FO16/61R-VBB06 A2FO16/61L-VBB06
A2FO23/61R(L)-V(P)A(ZBP)B05
A2FO23/61R-PBB05 A2FO23/61L-PBB05
A2FO23/61R-PAB05 A2FO23/61L-PAB05
A2FO23/61R-PPB05 A2FO23/61L-PPB05
A2FO23/61R-PZB05 A2FO23/61L-PZB05
A2FO23/61R-VPB05 A2FO23/61L-VPB05
A2FO23/61R-VAB05 A2FO23/61L-VAB05
A2FO23/61R-VBB05 A2FO23/61L-VBB05
A2FO28/61R(L)-V(P)A(ZBP)B05
A2FO28/61R-PBB05 A2FO28/61L-PBB05
A2FO28/61R-PAB05 A2FO28/61L-PAB05
A2FO28/61R-PPB05 A2FO28/61L-PPB05
A2FO28/61R-PZB05 A2FO28/61L-PZB05
A2FO28/61R-VPB05 A2FO28/61L-VPB05
A2FO28/61R-VAB05 A2FO28/61L-VAB05
A2FO28/61R-VBB05 A2FO28/61L-VBB05
A2FO32/61R(L)-V(P)A(ZBP)B05
A2FO32/61R-PBB05 A2FO32/61L-PBB05
A2FO32/61R-PAB05 A2FO32/61L-PAB05
A2FO32/61R-VAB05 A2FO32/61L-VAB05
A2FO32/61R-VBB05 A2FO32/61L-VBB05
A2FO45/61R(L)-V(P)Z(P)B05
A2FO45/61R-PPB05 A2FO45/61L-PPB05
A2FO45/61R-PZB05 A2FO45/61L-PZB05
A2FO45/61R-VPB05 A2FO45/61L-VPB05
A2FO45/61R-VZB05 A2FO45/61L-VZB05
A2FO56/61R(L)-V(P)A(ZBP)B05
A2FO56/61R-PBB05 A2FO56/61L-PBB05
A2FO56/61R-PAB05 A2FO56/61L-PAB05
A2FO56/61R-PPB05 A2FO56/61L-PPB05
A2FO56/61R-PZB05 A2FO56/61L-PZB05
A2FO56/61R-VPB05 A2FO56/61L-VPB05
A2FO56/61R-VAB05 A2FO56/61L-VAB05
A2FO56/61R-VBB05 A2FO56/61L-VBB05
A2FO63/61R(L)-V(P)A(B)B05
A2FO63/61R-PBB05 A2FO63/61L-PBB05
A2FO63/61R-PAB05 A2FO63/61L-PAB05
A2FO63/61R-VAB05 A2FO63/61L-VAB05
A2FO63/61R-VBB05 A2FO63/61L-VBB05
A2FO80/61R(L)-V(P)A(ZBP)B05
A2FO80/61R-PBB05 A2FO80/61L-PBB05
A2FO80/61R-PAB05 A2FO80/61L-PAB05
A2FO80/61R-PPB05 A2FO80/61L-PPB05
A2FO80/61R-PZB05 A2FO80/61L-PZB05
A2FO80/61R-VPB05 A2FO80/61L-VPB05
A2FO80/61R-VAB05 A2FO80/61L-VAB05
A2FO80/61R-VBB05 A2FO80/61L-VBB05
A2FO90/61R(L)-V(P)A(B)B05
A2FO90/61R-PBB05 A2FO90/61L-PBB05
A2FO90/61R-PAB05 A2FO90/61L-PAB05
A2FO90/61R-VAB05 A2FO90/61L-VAB05
A2FO90/61R-VBB05 A2FO90/61L-VBB05
A2FO107/61R(L)-V(P)A(ZBP)B05
A2FO107/61R-PBB05 A2FO107/61L-PBB05
A2FO107/61R-PAB05 A2FO107/61L-PAB05
A2FO107/61R-PPB05 A2FO107/61L-PPB05
A2FO107/61R-PZB05 A2FO107/61L-PZB05
A2FO107/61R-VPB05 A2FO107/61L-VPB05
A2FO107/61R-VAB05 A2FO107/61L-VAB05
A2FO107/61R-VBB05 A2FO107/61L-VBB05
A2FO125/61R(L)-V(P)A(B)B05
A2FO125/61R-PBB05 A2FO125/61L-PBB05
A2FO125/61R-PAB05 A2FO125/61L-PAB05
A2FO125/61R-VAB05 A2FO125/61L-VAB05
A2FO125/61R-VBB05 A2FO125/61L-VBB05
A2FO160/61R(L)-V(P)A(ZBP)B05
A2FO160/61R-PBB05 A2FO160/61L-PBB05
A2FO160/61R-PAB05 A2FO160/61L-PAB05
A2FO160/61R-PPB05 A2FO160/61L-PPB05
A2FO160/61R-PZB05 A2FO160/61L-PZB05
A2FO160/61R-VPB05 A2FO160/61L-VPB05
A2FO160/61R-VAB05 A2FO160/61L-VAB05
A2FO160/61R-VBB05 A2FO160/61L-VBB05
A2FO180/61R(L)-V(P)A(B)B05
A2FO180/61R-PBB05 A2FO180/61L-PBB05
A2FO180/61R-PAB05 A2FO180/61L-PAB05
A2FO180/61R-VAB05 A2FO180/61L-VAB05
A2FO180/61R-VBB05 A2FO180/61L-VBB05
A2FO200/63R(L)-V(P)A(B)B05
A2FO200/63R-PBB05 A2FO200/63L-PBB05
A2FO200/63R-PAB05 A2FO200/63L-PAB05
A2FO200/63R-VAB05 A2FO200/63L-VAB05
A2FO200/63R-VBB05 A2FO200/63L-VBB05
A2F(L)O250/60R(L)-VZ(P)B05
A2FO250/60R-VPB05 A2FO250/60L-VPB05
A2FO250/60R-VZB05 A2FO250/60L-VZB05
A2FLO250/60R-VPB05 A2FLO250/60L-VPB05
A2FLO250/60R-VZB05 A2FLO250/60L-VZB05
A2F(L)O355/60R(L)-VZ(P)H11
A2FO355/60R-VPH11 A2FO355/60L-VPH11
A2FO355/60R-VZH11 A2FO355/60L-VZH11
A2FLO355/60R-VPH11 A2FLO355/60L-VPH11
A2FLO355/60R-VZH11 A2FLO355/60L-VZH11
A2F(L)O500/60R(L)-VZ(P)H11
A2FO500/60R-VPH11 A2FO500/60L-VPH11
A2FO500/60R-VZH11 A2FO500/60L-VZH11
A2FLO500/60R-VPH11 A2FLO500/60L-VPH11
A2FLO500/60R-VZH11 A2FLO500/60L-VZH11
A2FLO710/60R(L)-VZ(P)H11
A2FLO710/60R-VPH11 A2FLO710/60L-VPH11
A2FLO710/60R-VZH11 A2FLO710/60L-VZH11
A2FLO1000/60R(L)-VZ(P)H11
A2FLO1000/60R-VPH11 A2FLO1000/60L-VPH11
A2FLO1000/60R-VZH11 A2FLO1000/60L-VZH11