Name: China Rexroth Pump A4VSO Suppliers - Yanhui Hydraulic
Brand: Yanhui
SKU: 266088602

Product Overview

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The Rexroth A4VSO is a variable axial piston pump of swashplate design, tailored for open circuit industrial hydraulic applications. It is engineered to deliver high performance, exceptional reliability, and precise control for demanding heavy-duty operations.

Key Features

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Designed for continuous heavy-duty industrial applications with high nominal pressures up to 350 bar and peak pressures up to 400 bar.
Excellent self-priming capabilities and low noise emission levels during operation.
Modular design allows for multiple combinations, including through-drive options for auxiliary pump mounting.
Highly responsive control systems providing precise reproducibility and low hysteresis for closed-loop precision automation.

Technical Specifications

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Technical Parameter	Specification Value (General Range / Specific Sizes)
Maximum Working Pressure	Nominal Pressure: 350 bar / Peak Pressure: 400 bar
Displacement Range	40 cc/rev to 1000 cc/rev (Sizes: 40, 71, 125, 180, 250, 355, 500, 750, 1000)
Rated Flow Speed	Dependent on size, up to 2600 rpm (e.g., Size 40 max speed 2600 rpm; Size 1000 max speed 1000 rpm)
Working Temperature Range	-25 degrees Celsius to +80 degrees Celsius
Viscosity Range	Recommended: 10 mm2/s to 100 mm2/s (Permissible: 5 mm2/s to 1600 mm2/s)
Control Hysteresis	Less than 0.5 percent of full scale (depending on control type)
Response Time	Fast stroking and destrosting response times ranging from 50 ms to 200 ms

Applications

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Metal Forming Presses: Used in large hydraulic stamping and forging presses to deliver precise high-pressure oil volume during rapid closing, pressing, and decompression phases.
Injection Molding Machines: Integrated into multi-pump systems to control injection speed, holding pressure, and mold clamping functions with high repeatability.
Marine and Offshore Winches: Deployed in heavy-duty winch drives and deck machinery to regulate torque and speed under severe load variations.
Metallurgical and Steel Mills: Applied in rolling mill hydraulic stations to control auxiliary drives, roll balancing, and high-response shear controls.
Test Benches: Utilized in industrial and automotive component testing rigs requiring precise, programmable flow and pressure simulation.

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.