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Rexroth A4V Series Pump | A4V28, A4V40, A4V56, A4V71, A4V90, A4V125 | A4V56DA1 Hydraulic Pump
| Model Number | A4V28, A4V40, A4V56, A4V71, A4V90, A4V125, A4V56DA1, A4V56DA1.0R061B10 |
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Product Description
Rexroth A4V Series High-Pressure Closed-Circuit Piston Pump
Product Overview: The Rexroth A4V series is the cornerstone of hydrostatic transmission systems for mobile machinery. Specifically designed for closed-circuit applications, this series is renowned for its exceptional reliability and precision control. Featured models like the A4V56DA1.0R061B10 integrate DA Speed-Related Control, which automatically modulates pump displacement relative to engine RPM, delivering smooth and powerful traction. Whether in rollers, rotary drilling rigs, or specialty vehicles, the A4V series ensures high-efficiency operation under extreme high-pressure conditions.
Key Technical Advantages:
DA Speed-Related Control: Automatically adjusts flow based on engine speed, providing an “automatic transmission” driving experience that simplifies operation and optimizes fuel efficiency.
Highly Integrated Architecture: Features a built-in charge pump and high-pressure relief valves, significantly simplifying the hydraulic system layout.
Superior Low-Speed Stability: Maintains high starting torque even at low speeds, ensuring smooth start-ups for heavy-duty machinery.
Heavy-Duty Durability: Reinforced for continuous operation at 400 Bar (5800 PSI), utilizing Rexroth-patented high-strength wear-resistant materials for critical rotating components.
100% OEM Specification Match: Manufactured to strict Rexroth Series 31/40 standards, ensuring splined shafts and flanges align perfectly for seamless “drop-in” replacement.
Detailed Models & Parameters:
Core Series: Rexroth A4V Series 31/40.
Displacement Matrix: 28, 40, 56, 71, 90, 125 cm³/rev.
Representative Models: A4V56DA1.0R061B10, A4V56DA1, A4V71, A4V125.
Pressure Ratings: Rated at 400 Bar (5800 PSI); Intermittent peak support up to 450 Bar.
Rotation: R (Clockwise/CW), L (Counter-Clockwise/CCW).
Target Applications: Roller traction drives, concrete mixer drum drives, large pavers, and combine harvesters.
Company Profile
We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
Our Advantages
Fast & Reliable Delivery
Extensive Partnerships
We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses
Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
Competitive Pricing
Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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