A4VSO Open Circuit Axial Piston Pump (40-500 cc/rev)
The A4VSO series axial piston variable displacement pumps are designed for open circuit hydrostatic drives and demanding industrial hydraulic systems. Available in displacements from 40 cc/rev to 500 cc/rev, the A4VSO series combines high efficiency, excellent controllability and long service life.
OEM Hydraulics supplies replacement solutions and spare parts for a wide range of Bosch Rexroth A4VSO pumps used in hydraulic power units, steel mills, presses, plastic injection molding machines and other heavy-duty industrial applications.
Key Features
- Variable displacement axial piston pump with swashplate design
- Designed for open circuit hydrostatic drives
- Available sizes from 40 cc/rev to 500 cc/rev
- Series 1, Series 2 and Series 3 available
- Nominal pressure up to 350 bar
- Peak pressure up to 420 bar
- Flow proportional to drive speed and displacement
- Stepless displacement adjustment via swashplate angle
- Excellent suction characteristics
- Low noise level and long service life
- Drive shaft capable of absorbing axial and radial loads
- Modular design with excellent power-to-weight ratio
- Through drive available for mounting additional pumps
- Swashplate angle indicator
- Flexible mounting positions available
- Operation with HF fluids possible under reduced operating parameters
Available Sizes
- A4VSO40
- A4VSO71
- A4VSO80
- A4VSO125
- A4VSO180
- A4VSO200
- A4VSO250
- A4VSO355
- A4VSO370
- A4VSO500
Compatible Rexroth Models
The A4VSO series can be supplied as an alternative to numerous Bosch Rexroth A4VSO pumps, including but not limited to:
- A4VSO40 DR/10R
- A4VSO71 DR/10R
- A4VSO80 DR/10R
- A4VSO125 DR/30R
- A4VSO125GE/30R
- A4VSO125DFR1/30R
- A4VSO180 DR/30R
- A4VSO180DFR1/30R
- A4VSO200 DR/30R
- A4VSO250 DR/30R
- A4VSO355 DR/30R
- A4VSO370 DR/30R
- A4VSO500 DR/30R
Additional A4VSO configurations are available upon request. Please provide the complete Bosch Rexroth model code for verification.
Typical Applications
- Hydraulic power units
- Steel industry
- Metal forming presses
- Plastic injection molding machines
- Marine hydraulic systems
- Mining equipment
- Industrial production lines
- Heavy industrial machinery
Technical Specifications
| Parameter |
Description |
| Displacement Range |
40 - 500 cc/rev |
| Pump Type |
Axial Piston Variable Displacement Pump |
| Hydraulic Circuit |
Open Circuit |
| Nominal Pressure |
350 bar |
| Peak Pressure |
420 bar |
| Series |
Series 1, Series 2, Series 3 |
| Mounting |
SAE and ISO configurations available |
Downloads
Download Technical Data Sheet (PDF)
Detailed technical specifications, dimensions and performance data are available in the product data sheet.
Frequently Asked Questions (FAQ)
Is this pump interchangeable with Bosch Rexroth A4VSO pumps?
Yes. The A4VSO series has been developed as a replacement solution for selected Bosch Rexroth A4VSO models.
Can the correct pump be identified using the Rexroth model code?
Yes. Simply send us the complete model code or a photo of the nameplate.
Which sizes are available?
Available sizes include 40cc, 71cc, 80cc, 125cc, 180cc, 200cc, 250cc, 355cc, 370cc and 500cc.
Can spare parts and repair kits be supplied?
Yes. OEM Hydraulics can supply spare parts and repair kits for many A4VSO pump configurations.
What is the typical lead time?
Typical lead time is approximately 4 weeks depending on model and configuration.
Can you identify the correct replacement pump from a nameplate?
Yes. Simply send us a photo of the nameplate or the complete model designation. Our technical team will help identify the correct replacement pump.
Is the A4VSO pump suitable for hydraulic power units?
Yes. The A4VSO series is widely used in hydraulic power units, industrial hydraulic systems and heavy-duty applications.
Can the A4VSO be used as an alternative to Bosch Rexroth A4VSO pumps?
Yes. The A4VSO series is frequently used as a cost-effective alternative to selected Bosch Rexroth A4VSO pump models.
