Rexroth A4VG Series Pump | A4VG45, A4VG125, A4VG180, A4VG250 | A4VG180EP4 | Variable Piston Pump
| Model Number | A4VG56DWDT1/32R-NZC02F003D-S, A4VG180EP4D2/32LNZD02F691BH, A4VG180EP4D1/32LNZD02F691DH-S |
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Product Description
Rexroth A4VG Series Closed-Circuit Axial Piston Variable Pump
Product Overview: The Rexroth A4VG series is the quintessential power heart for hydrostatic transmission systems in global mobile machinery. Engineered specifically for high-pressure closed-circuit applications, this series is renowned for its exceptional power density, precision control, and extended service life. Featured models like the A4VG180EP4D2/32L and A4VG180EP4D1/32L utilize advanced Electric Proportional Control (EP4), enabling smooth and precise displacement modulation via 12V/24V signals. This series is widely adopted in the traction drives of rollers, harvesters, rotary drilling rigs, and heavy-duty forklifts.
Key Technical Advantages:
Highly Integrated Architecture: Built-in charge pump, high-pressure relief valves, charge relief valves, and control modules significantly simplify vehicle hydraulic plumbing.
Extreme High-Pressure Capability: Rated for 400 Bar (5800 PSI) continuous duty with peak support up to 450 Bar, easily handling heavy-duty climbs and extreme load shocks.
Precision EP4 Electric Control: Offers highly sensitive response and smooth reversals, perfectly catering to intelligent digital traction systems for enhanced machine handling.
Compact & Low-Noise Construction: Optimized Series 32 swashplate geometry delivers massive torque output while effectively minimizing operational noise and vibration.
100% OEM Standard Compatibility: Manufactured to strict Rexroth factory specifications (e.g., NZD02/F691 series), ensuring splined shafts and flanges align perfectly for a seamless “drop-in” replacement.
Detailed Models & Parameters:
Core Series: Rexroth A4VG Series 32 / 40.
Full Displacement Matrix: 45, 56, 71, 90, 125, 180, 250 cm³/rev.
Representative Models: A4VG180EP4D2/32LNZD02F691BH, A4VG180EP4D1/32LNZD02F691DH.
Pressure Ratings: Rated at 400 Bar (5800 PSI) continuous; Intermittent peak capability up to 450 Bar.
Control Types: EP (Electric Proportional), HW (Hydraulic Proportional), DA (Speed Related).
Target Applications: Vibratory rollers, asphalt pavers, heavy-duty loaders, horizontal directional drills (HDD), and forestry machinery.



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