A4VSO125EO1/30L-PPB25N00 Rexroth German piston pump industrial mining high-pressure variable

The Rexroth A4VSO125EO1/30L-PPB25N00 is a genuine German-manufactured A4VSO series open-circuit axial piston variable pump, equipped with EO1 electro-proportional displacement control. With a displacement of 125 cm³/r and PPB25 SAE flange & ports, pump flow is set remotely via an analog electrical signal (±10 V DC or 4-20 mA) from a PLC, DCS, or proportional amplifier.

The EO1 control provides direct electronic command of pump displacement—eliminating the need for hydraulic pilot pressure to set flow. This makes the A4VSO125EO1 particularly suitable for industrial high-pressure hydraulic power units and mining equipment auxiliary circuits (conveyor tensioning, cooling fan drives, filter press feeds, lubrication skids) where automated, repeatable flow control is required. Rated for 350 bar continuous / 400 bar peak, with PPB25 SAE porting for minimized pressure drop in higher-flow plumbing.

• Pump displacement—and therefore flow—is linearly proportional to an external analog command signal
• No hydraulic pilot pressure required for flow setting → simplifies hydraulic circuit design
• Enables remote, programmable flow changes via plant PLC, HMI, or DCS
• Allows pump to be ramped up/down electrically, reducing system shock on start/stop
• Can be paired with external pressure relief or cut-off valve for system protection
• Suitable for modernizing fixed-displacement or manually adjusted systems to digitally controlled hydraulics

• Mining & Mineral Processing: conveyor belt tensioning, cooling fan pump drives, filter press hydraulics, lube oil skids, thickener rake drives
• Industrial High-Pressure HPUs: press auxiliary circuits, stamping machine clamp/eject pumps, machine tool hydraulic supplies
• Process Industry: mixer variable-flow supply, packaging machine hydraulics, test bench programmable flow
• Material Handling: crane auxiliary circuits, outrigger/stabilizer pumps
• Retrofit Projects: upgrading manual or fixed-displacement pumps to PLC-controlled variable flow

Distributed through Rexroth's authorized global dealer network, including:

• Europe: Germany, Italy, France, UK, Spain, Netherlands, Austria, Switzerland, Poland, Sweden
• Asia-Pacific: China, Japan, South Korea, India, Taiwan, Thailand, Malaysia, Vietnam, Australia
• Americas: USA, Canada, Mexico, Brazil, Chile (mining regions)
• Middle East & Africa: UAE, Saudi Arabia, Turkey, South Africa