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Rexroth A4VG Series Hydraulic Piston Pump | A4VG28, A4VG56, A4VG90 | DA & HD Control
| Model Number | A4VG28DA12/30R-PZC10F011S-S, A4VG56DA1D8/32R-NZC02F005S |
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Product Description
A4VG Series High-Pressure Closed Circuit Axial Piston Pump
Product Overview: The Rexroth A4VG series is the global gold standard for hydrostatic closed-circuit transmissions, extensively used in mobile machinery travel drives. As a high-pressure swashplate axial piston pump, it integrates a charge pump and relief valves to deliver exceptional power density. Whether featuring the automated drive control of the A4VG28DA/A4VG56DA or the hydraulic pilot-operated control of the A4VG90HD, this series provides smooth, precise power delivery at rated pressures up to 400 bar.
Key Technical Advantages:
Sophisticated Control Logic (DA/HD): The A4VG28DA12 and A4VG56DA1D8 feature hydraulic drive automation (DA) that modulates displacement based on engine speed. The A4VG90HD1D offers hydraulic servo control (HD), ensuring linear response and superior inching performance for travel systems.
Highly Integrated Architecture: Equipped with an integrated charge pump and pressure cut-off valves, simplifying closed-circuit plumbing while ensuring exceptional smoothness during directional changes.
High-Pressure Reliability: Built for continuous heavy-duty duty (400 bar nominal / 450 bar peak), utilizing reinforced swashplate bearings and precision-hardened pistons to ensure extended service life in harsh environments.
Seamless Compatibility: Configurations like the A4VG90 HD1D/31R-NSF02F732-S utilize specialized NSF/F02 shaft and seal arrangements, ensuring a perfect drop-in replacement for asphalt pavers, rollers, and other traction drives.
Specific Models & Technical Parameters: This range includes core configurations: A4VG28DA12/30R-PZC10F011S-S, A4VG56DA1D8/32R-NZC02F005S, and A4VG90 HD1D/31R-NSF02F732-S. Key specifications: Displacement from 28cc to 90cc, rated pressure up to 40 MPa (400 Bar), max speeds of 3000-4000 rpm, and SAE mounting patterns with multiple control options (DA, HD, HW, EP).
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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