Yanhui Hydraulic Co., Ltd. is a leading supplier of high-quality hydraulic components, specializing in pumps, motors, and valves. Our mission is to provide customers with a one-stop hydraulic solution.
Why Choose Yanhui Hydraulic?
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Technical support for pump selection and system integration
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High-quality products with warranty support
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Fast, global shipping for industrial and mobile projects
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Custom hydraulic solutions tailored to your requirements
Product Overview
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The Rexroth Axial Piston Variable Pump A4VSO is engineered for precision, efficiency, and durability in demanding hydraulic systems. Its variable displacement design allows for adjustable flow and pressure, making it suitable for construction machinery, industrial presses, and mobile hydraulics. With low noise operation and high energy efficiency, it ensures smooth and reliable system performance.
Key Features
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Adjustable flow for energy-efficient operation
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High-pressure capability up to 420 bar (optional)
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Compact and robust design for heavy-duty usage
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Smooth, low-noise operation for sensitive environments
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Multiple control options: mechanical, electro-hydraulic, or servo
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Long service life with minimal maintenance
Technical Specifications
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| Parameter | Specification |
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| Model | A4VSO Series |
| Displacement | 18 – 180 cc/rev (varies by submodel) |
| Max Pressure | 350 bar (standard), up to 420 bar (optional) |
| Max Speed | 3000 rpm |
| Mounting Type | SAE flange, ISO 3019-1 |
| Control Type | Electro-hydraulic, mechanical, or servo control |
| Shaft | Splined or keyed, depending on application |
| Fluid Compatibility | Mineral oils (HLP, HVLP), other hydraulic fluids upon request |
| Operating Temperature | -20°C to +80°C |
Applications
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- Construction machinery such as excavators, loaders, and cranes
- Agricultural equipment like tractors and harvesters
- Industrial presses and injection molding machines
- Material handling and logistics machinery
- Marine and offshore hydraulic systems
Installation and Maintenance Tips
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- Ensure the hydraulic fluid is clean and compatible with the pump
- Check system pressure and flow requirements before installation
- Use proper mounting torque to avoid mechanical stress
- Monitor operating temperature and pressure to prolong pump life
- Schedule regular maintenance and inspection to prevent unexpected downtime
Purchase and Selection Tips
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- Confirm system requirements: pressure, flow, and speed
- Select the appropriate control type (mechanical, electro-hydraulic, or servo)
- Use genuine Rexroth products for reliability and warranty support
- Consult Yanhui Hydraulic for expert advice on installation and configuration
FAQ
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Q1: What is a variable displacement pump?
A1: A variable displacement pump like the A4VSO allows you to adjust the output flow and system pressure, improving efficiency compared to fixed pumps.
Q2: How do I choose the correct A4VSO model?
A2: Consider your system's flow rate, operating pressure, and control type. Our technical team can recommend the right submodel for your application.
Q3: Can this pump operate in high-temperature environments?
A3: Yes, the A4VSO can handle operating temperatures from -20°C to +80°C, depending on hydraulic fluid and system setup.
Q4: What maintenance is required?
A4: Routine checks on fluid cleanliness, filter condition, shaft alignment, and mounting integrity are recommended.
Contact Us
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Yanhui Hydraulic Co., Ltd. supplies genuine Rexroth pumps and provides professional technical support to ensure the best performance in your hydraulic systems. Contact us for inquiry and more product details.
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