A4VSO180EO2/30L-PPB25N00 Industrial Axial Piston Pump
Product Overview
The Rexroth A4VSO180EO2/30L-PPB25N00 is a genuine German-manufactured open-circuit axial piston variable pump from the A4VSO series, equipped with EO2 electro-proportional displacement control. With a displacement of 180 cm³/r, this pump allows remote, signal-based flow adjustment via a 4-20 mA or ±10 V command signal—making it ideal for modern PLC- or CNC-controlled hydraulic systems where precise, repeatable flow regulation is required.
Rated for 350 bar continuous / 400 bar peak, and fitted with PPB25 SAE flange and ports, the A4VSO180EO2 is commonly integrated into automated test benches, servo-hydraulic systems, specialized production machinery, and process plant hydraulic power units.
Technical Specifications
| Manufacturer |
Rexroth, Made in Germany |
| Series |
A4VSO - Open Circuit Swashplate Axial Piston Variable Pump |
| Model Code |
A4VSO180EO2/30L-PPB25N00 |
| Geometric Displacement (Vg max) |
180 cm³/r |
| Nominal Pressure |
350 bar |
| Peak Pressure |
400 bar |
| Maximum Speed (nnom) |
Approx. 1800 rpm |
| Theoretical Flow @1500 rpm |
Approx. 270 L/min |
| Theoretical Flow @1800 rpm |
Approx. 324 L/min |
| Drive Power @350 bar & 1500 rpm |
Approx. 158 kW |
| Control Type |
EO2 - Electro-Proportional Displacement Control (external electric signal sets swashplate angle / flow) |
| Rotation |
L - Left-hand (viewed from shaft end) |
| Flange & Port |
PPB25 - SAE Flange & SAE Port (larger porting) |
| Through Drive |
N00 - Without Through Drive (tandem-ready variants available on other A4VSO codes) |
| Hydraulic Fluid |
Mineral Oil HLP, HFC Water-Glycol Permissible (Derated) |
| Approximate Weight |
102-103 kg |
Why Choose EO2 Control?
Unlike DR (pressure-only) or DFR (pilot-pressure flow), EO2 gives you direct electronic command over pump displacement:
- Flow is set by an analog electrical signal (±10 V / 4-20 mA) — no mechanical or hydraulic pilot required
- Enables fully automated, programmable flow profiles via PLC or motion controller
- Supports integration with Industry 4.0 / digital hydraulic concepts
- Fast response proportional solenoid for dynamic load changes
- Can be combined with pressure cut-off or pressure limiting functions externally
Typical Applications
- Automated hydraulic test rigs & calibration benches
- CNC/special-purpose production machines with flow-programmed cycles
- Servo-hydraulic material testing machines (MTS-style setups)
- Process industry hydraulic skids requiring remote flow setpoint
- Research & development laboratories and university hydraulic labs
- Upgrading legacy fixed-displacement or manually controlled pumps to electronically governed systems
Global Sales Countries / Regions
Available through Rexroth's worldwide authorized distributor network, including:
- Europe: Germany, Italy, France, UK, Spain, Netherlands, Sweden, Poland
- Asia-Pacific: China, Japan, South Korea, India, Taiwan, Thailand, Malaysia, Vietnam, Australia
- Americas: USA, Canada, Mexico, Brazil, Chile
- Middle East & Africa: UAE, Saudi Arabia, Turkey, South Africa
Frequently Asked Questions
Q1: Does EO2 control replace the need for a flow control valve in the circuit?
A1: It allows you to set pump flow electronically, reducing dependence on separate flow control valves for basic regulation. However, precision motion or pressure-compensated flow to individual actuators may still benefit from secondary valving.
Q2: What external electronics are needed for EO2?
A2: EO2 requires a compatible proportional amplifier (often Rexroth VT-series or PLC-integrated analog output card) to supply the command signal and monitor solenoid current. Some versions include onboard electronics — confirm with your supplier.
Q3: Can EO2 pumps be used in closed-loop (hydrostatic) drives?
A3: No. A4VSO pumps are open-circuit only. For closed-loop travel/propulsion drives, refer to the A4VG or A4VM series.