Rexroth A20VO Series Pump | A20VO60, A20VO520 | Tandem Axial Piston Variable Pump

Rexroth A20VO Series High-Pressure Tandem Axial Piston Variable Pump

Product Overview: The Rexroth A20VO series is a premium tandem variable displacement piston pump designed for mobile and heavy-duty industrial applications. Utilizing a swashplate architecture, this series spans displacements from the mainstream 60cc (A20VO60) to the massive 520cc (A20VO520). Featured models such as the AL-A20V060DFR/10R… and ALA20VO 520 LR3DN… integrate two independent variable pumps on a single drive shaft, enabling dual-circuit control within a minimal footprint. Rated for continuous pressures up to 350 Bar, it serves as the primary power core for excavators, cranes, and large-scale industrial presses.

Key Technical Advantages:

• Superior Tandem Integration: Features two pumps in parallel within a compact housing sharing a common suction port, simplifying plumbing layouts and maximizing power density.

• High-Precision Control Diversity:

  • DFR/DFR1 Specs: Provides Pressure and Flow control (Load Sensing), ensuring the system only delivers required energy, significantly reducing heat generation.

• LR3DN Specs: Features total power control, ensuring engine power is perfectly distributed between both pumps to prevent stalling under peak loads.

• Exceptional Quiet Operation: Optimized rotating groups and valve plate damping technology ensure low operational noise even under high-pressure duty cycles.

• Long-Term Durability: Equipped with heavy-duty bearing systems and reinforced seals (VSD/NSD), specifically engineered for outdoor environments with high dust and vibration.

• 100% Factory-Level Customization (K68/K99):

  • ALA20VO 520 -S2065: Represents specific flange, shaft, and regulator slope configurations tailored for ultra-large equipment, ensuring seamless “plug-and-play” replacement.

Detailed Models & Parameters:

• Core Series: Rexroth A20VO Series (A20V0).

• Representative Models: AL-A20V060DFR/10R-NSD24K68, A20V0 60 DFR1/10R-VSD24K68, ALA20VO 520 LR3DN/10L-VZH26K99 -S2065.

• Displacements: 60 cm³/rev (x2), 520 cm³/rev (x2).

• Pressure Ratings: Rated at 350 Bar (5075 PSI); Peak cycles up to 400 Bar (5800 PSI).

• Rotation: R (Clockwise) / L (Counter-clockwise).

• Applications: Crawler Cranes, Large Excavators, TBM (Tunnel Boring Machines), Heavy Industrial Presses.