Rexroth A4VSO355 Pump | A4VSO Series 30 | LR2G, DR, DFR1 | Heavy Duty Variable Pump

Rexroth A4VSO Series Heavy-Duty Industrial Variable Piston Pump

Product Overview: The Rexroth A4VSO series is a high-performance, heavy-duty axial piston variable displacement pump designed specifically for open-circuit industrial hydraulic systems. Known for its extreme reliability, superior pressure resistance, and extended service life, this series is the global power standard for heavy machinery. Flagship models like the A4VSO355LR2G/30R-PPB13N00-S1066 feature precision Power Control (LR2G), which automatically modulates displacement based on load pressure to keep the motor or engine within its optimal efficiency range. It is widely used in metal presses, forging machinery, injection molders, and central hydraulic stations in power and steel plants.

Key Technical Advantages:

• Precision Control Mechanisms:

  • DR (Pressure Control): Automatically maintains preset system pressure, ensuring energy efficiency and protection.

  • DFR1 (Load Sensing): Modulates flow precisely based on the actual demand of the actuators.

  • LR2G (Constant Power): Implements power limitation to prevent prime mover overload.

  • DRG (Remote Pressure Control): Allows for long-distance pressure adjustment via a pilot valve.

• Extended Industrial Service Life: Optimized for continuous high-pressure environments (rated at 350 Bar), with reinforced bearings and high-strength swashplate designs supporting 24/7 high-intensity production.

• Low Noise & Low Pulsation: The optimized nine-piston rotating group and heavy-duty damped housing significantly reduce operational noise and pressure pulsations.

• 100% Industrial OEM Compatibility: Manufactured to strict Rexroth Series 30 standards, offering various shaft (keyed/splined) and flange options for seamless “drop-in” replacement.

• Superior Power Density: Provides displacement options up to 500cc within a compact envelope to meet extreme torque requirements.

Detailed Models & Parameters:

• Core Series: Rexroth A4VSO Series 30.

• Full Displacement Matrix: 40, 71, 125, 180, 250, 355, 500 cm³/rev.

• Representative Models: A4VSO355LR2G/30R-PPB13N00-S1066.

• Pressure Ratings: Rated at 350 Bar (5000 PSI) continuous; Peak support up to 400 Bar.

• Control Types: DR, DFR1, DRG, DFLR, LR2G.

• Seals: P (NBR) or V (FKM/Viton).

• Target Applications: Heavy hydraulic presses, aluminum extrusion machines, scrap shears, offshore engineering, and power plant hydraulic units.