A4VSO250LR2G/30L-PPB25N00 German Rexroth A4VSO250 series piston pump

The Rexroth A4VSO250 series is a swashplate-type axial piston variable displacement pump designed for open circuit (open loop) hydraulic systems. With a nominal displacement of 250 cm³/r, it delivers high flow at pressures up to 350 bar continuous / 400 bar peak. Manufactured in Germany, the A4VSO250 is available in multiple control versions—including constant pressure (DR), pressure & flow compound (DFR), and electro-proportional (EO2)—making it suitable for heavy-duty industrial applications such as hydraulic presses, steel mill drives, marine power units, and large injection molding machines.

• Swashplate design with infinitely variable displacement for on-demand flow and energy saving
• Rated for 350 bar continuous / 400 bar peak — suitable for heavy industrial loads
• Excellent suction characteristics and low noise operation
• Modular control system: DR, DFR (load sense), LR2 (power control), EO2 (electro-proportional)
• Through-drive option allows tandem pump combinations (A4VSO + gear pump or smaller A4VSO)
• Compatible with variable speed drive (VSD) systems
• Long-life heavy-duty bearings and high-strength cast iron housing

• Hydraulic presses - ceramic presses, forging presses, stamping lines
• Metallurgy - rolling mills, continuous casting machines, blast furnace hydraulics
• Marine & offshore - winches, cranes, deck machinery hydraulic power packs
• Heavy machinery - tunnel boring machine (TBM) auxiliaries, mining equipment
• Industrial test rigs and large injection molding machines

No. The A4VSO series is designed exclusively for open circuit (open loop) systems. For closed circuits, use the A4VG or A4VM series.

DR is constant pressure control only. DFR adds flow control via an external pilot signal, allowing both pressure limit and flow demand to be set—ideal for load-sensing and energy-efficient systems.

Yes, selected A4VSO250 variants with through-drive (through shaft) can be tandem-mounted with another A4VSO or a gear pump to build multi-circuit hydraulic power units.