| Rexroth A4VSO Series Axial Piston Variable Pump |
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| Product Overview |
| The Rexroth A4VSO is a high-performance axial piston pump with
swashplate design, engineered for open-circuit hydraulic systems.
Its variable displacement mechanism enables precise flow control,
making it ideal for industrial and mobile applications requiring
energy efficiency and dynamic response. |
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| Key Features: |
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| • Displacement Range: 28 to 500 cc/rev (multiple models available) |
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| • Pressure Rating: |
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| ◦ Maximum Operating Pressure: 350 bar (5,076 psi) |
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| ◦ Peak Pressure: 400 bar (5,802 psi) |
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| • Speed Range: Up to 3,600 rpm (model-dependent) |
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| • Control Options: |
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| ◦ Hydraulic displacement control (HD) |
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| ◦ Electro-proportional control (EP) |
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| ◦ Load-sensing control (DA) |
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| • Efficiency: >95% volumetric efficiency at rated conditions |
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| • Fluid Compatibility: Mineral oils, biodegradable fluids
(HETG/HEES) |
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| Technical Highlights: |
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| • Swashplate Design: Precision-machined for reduced noise (<70
dB(A)) and extended service life |
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| • Port Configuration: SAE flanges or threaded ports (ISO 6149) |
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| • Materials: Aluminum or cast iron housing options for corrosion
resistance |
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| • Integrated Options: Pressure relief valve, charge pump port (for
closed-loop variants) |
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| Typical Applications: |
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| • Plastic injection molding machines |
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| • Test rigs & simulation systems |
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| • Construction equipment (e.g., excavators, cranes) |
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| • Marine and offshore hydraulics |
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| Certifications & Standards: |
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| • ISO 4401, NFPA, DIN/ISO 9001 compliant |
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| • RoHS & REACH compliant |
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| Service Information: |
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| • Recommended oil viscosity: 16 to 160 mm²/s |
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| • Maintenance interval: 5,000 operating hours (standard conditions) |
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| Ordering Example: |
| A4VSO 180 EP2 D/10R-PPB13N00 |
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| • 180 cc/rev displacement |
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| • Electro-proportional control (EP2) |
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| • Clockwise rotation |
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| • SAE flange porting |
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| For detailed CAD models and performance curves, visit Rexroth
Product Portal(#) or contact local Bosch Rexroth sales. |
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| Rexroth A4VSO 125 Axial Piston Variable Pump |
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| Product Overview |
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| The A4VSO 125 is a high-efficiency, swashplate-design variable
displacement pump from Bosch Rexroth, designed for open-circuit
hydraulic systems. With a displacement of 125 cc/rev, it delivers
precise flow control and energy savings in demanding industrial and
mobile applications. |
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| Key Specifications |
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| • Displacement: 125 cm³/rev (fixed or variable, depending on model) |
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| • Pressure Ratings: |
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| ◦ Maximum Operating Pressure: 350 bar (5,076 psi) |
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| ◦ Peak Pressure (Intermittent): 400 bar (5,802 psi) |
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| • Speed Range: |
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| ◦ Continuous Operation: Up to 2,800 rpm |
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| ◦ Peak Speed (Intermittent): 3,600 rpm |
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| • Control Options: |
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| ◦ Hydraulic Displacement Control (HD) |
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| ◦ Electro-Proportional Control (EP) |
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| ◦ Load-Sensing Control (DA, DFR) |
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| • Efficiency: |
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| ◦ Volumetric Efficiency: ≥95% at rated conditions |
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| ◦ Mechanical Efficiency: ≥92% |
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| Design & Construction |
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| • Swashplate Mechanism: Precision-balanced for low noise (<72
dB(A)) and high durability |
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| • Housing Materials: |
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| ◦ Aluminum (lightweight, corrosion-resistant) |
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| ◦ Cast Iron (heavy-duty applications) |
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| • Port Configurations: |
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| ◦ SAE Flanges (standard) |
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| ◦ Threaded Ports (ISO 6149) (optional) |
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| • Sealing System: High-performance shaft seals for compatibility
with mineral oils, HETG/HEES biodegradable fluids |
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| Typical Applications |
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| • Industrial Machinery: Plastic injection molding, presses, test
benches |
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| • Mobile Hydraulics: Excavators, cranes, drilling rigs |
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| • Marine & Offshore: Winches, steering systems |
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| Control Variants (Example Models) |
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| Model Code |
| A4VSO 125 HD |
| A4VSO 125 EP |
| A4VSO 125 DFR |
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| Maintenance & Service |
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| • Recommended Oil: ISO VG 46-68 (16–160 mm²/s viscosity) |
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| • Maintenance Interval: 5,000 operating hours (under standard
conditions) |
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| • Filter Requirement: βₓ(c) ≥ 75 (ISO 4406:2021) |
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| Ordering Example |
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| A4VSO 125 EP2 D/10R-PPB13N00 |
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| • 125 cc/rev displacement |
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| • Electro-proportional control (EP2) |
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| • Clockwise rotation (D) |
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| • SAE flange ports (10R) |
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| ------ |
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| Need Customization? |
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| If you require specific pressure settings, port configurations, or
certifications (e.g., ATEX for explosive environments), please
provide details for a tailored version. |
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| Would you like to emphasize energy efficiency, noise reduction, or
a specific industry application? Let me know, and I’ll refine the
text accordingly! |
