Rexroth A20VG 45 & A22VG 45 Hydraulic Piston Pump | AA20VG45DGM2 Series

A20VG / A22VG 45 Series Closed Circuit Variable Piston Pump

Product Overview: The A20VG 45 and A22VG 45 series are premium swashplate axial piston variable pumps specifically engineered for hydrostatic closed-circuit transmissions. With a 45cc displacement and a compact footprint, these pumps are the preferred choice for small rollers, pavers, and various mobile machinery drive systems. Featuring the advanced AA20VG45DGM2 configuration, this series integrates hydraulic proportional control with mechanical stroke limitation (M2), providing operators with precise speed and torque regulation under heavy-duty conditions. Rated for 300-350 bar, it stands as the “power core” for reliable and efficient mobile traction.

Key Technical Advantages:

• DGM2 Integrated Control: Combines hydraulic control (DG) with mechanical displacement limitation (M2). This allows for refined hydraulic adjustments within a preset range, preventing system overspeed and protecting the drive train components.

• Optimized for Closed Circuits: Equipped with an integrated boost pump (charge pump) and high-pressure relief valves, simplifying system plumbing and ensuring smooth performance during directional changes.

• High Power Density: Delivers a substantial 45 cm³/rev displacement within a minimized frame size. The reinforced swashplate design is built to withstand frequent reversals and high-pressure spikes.

• Seamless Interchangeability: Specific configurations like the AA20VG45DGM2/10R-NTC66F023D-S utilize specialized NTC/NSC sealing and F02 shaft arrangements, ensuring a perfect drop-in replacement for original Rexroth units.

Specific Models and Technical Parameters: This product line includes specialized variants such as the A20VG045, A22VG045, AA20VG45DGM2/10R-NTC66F023D-S, and A20VG45DGM2/10R-NSC66F024D. Key specifications include a 45 cm³/rev displacement, 300 bar nominal pressure (350 bar peak), SAE mounting patterns, NTC66F023D / NSC66F024D seal arrangements, and support for Clockwise (10R) rotation.

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