Rexroth A10VG & A4VG Series Pump | A10VG28, A10VG45, A4VG56, A10VG63, A10VG90 | Closed Circuit Pump

Rexroth A10VG & A4VG Series Axial Piston Pump for Closed Circuits

Product Overview: The Rexroth A10VG and A4VG series are premier axial piston variable displacement pumps designed specifically for hydrostatic transmissions in closed-circuit mobile applications. Covering a comprehensive displacement range from the compact 28 to the high-power 90, these pumps are the standard for rollers, mini-excavators, pavers, and mower drive systems. Flagship models such as the A10VG28HW1/10R-NSC10N005E-S feature integrated hydraulic servo controls and charge systems, delivering ultra-smooth speed regulation and rapid directional reversal for modern mobile machinery.

Key Technical Advantages:

• Superior Closed-Circuit Performance: Flow is proportional to drive speed and displacement; stepless speed control and over-center reversal are achieved through swashplate adjustment.

• Highly Integrated Architecture: The housing integrates a charge pump, high-pressure relief valves, and charge pressure relief valves, significantly simplifying external hydraulic plumbing.

• Versatile Control Options:

  • HW (Hydraulic Servo): Classic hydraulic pilot control for smooth and precise displacement adjustment via control pressure.

  • EP (Electric Proportional): Fast-responding digital control, ideal for integration with modern electronic vehicle management systems.

• High Response & Power Density: Capable of handling operating pressures up to 300-400 Bar within a minimal footprint, ensuring strong traction during heavy-duty starts.

• 100% OEM Compatibility: Manufactured to strict Rexroth Series 10/32 standards, ensuring splined shafts and flanges align perfectly for seamless drop-in replacement.

Detailed Models & Parameters:

• Core Series: Rexroth A10VG Series, A4VG Series.

• Displacement Matrix: 28, 45, 56, 63, 90 cm³/rev.

• Representative Models: A10VG28HW1/10R-NSC10N005E-S, A10VG45, A4VG56, A10VG63, A10VG90.

• Pressure Ratings: Rated at 300 Bar (4350 PSI); Intermittent peak support up to 350-400 Bar.

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

• Target Applications: Roller traction drives, concrete pump truck auxiliary drives, compact pavers, and agricultural mower drives.