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Rexroth A4VG Series Pump | A4VG90, A4VG125, A4VG180 | A4VG90DA2D2/32R | Excavator Main Pump | Closed Circuit Piston Pump
| Model Number | A4VG180 A4VG125 A4VG90 A4VG45 A10V028 |
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Product Description
Rexroth A4VG Series Heavy-Duty Closed Circuit Axial Piston Pumps
Product Overview: The Rexroth A4VG series axial piston variable displacement pumps are the global benchmark for closed-circuit hydrostatic transmissions in mobile machinery. Spanning a displacement matrix from 45cc (A4VG45) and 90cc (A4VG90) to the massive 180cc (A4VG180), this series is the vital core of excavator travel drives and drilling rig systems. The featured model A4VG90DA2D2/32R-NSF02F021DC-S utilizes advanced DA2 control, providing engine-speed-related displacement modulation for superior operational flexibility. Often paired with an A10VO28 open-circuit pump for auxiliary functions, it forms a high-efficiency hydraulic assembly for modern construction equipment.
Key Technical Advantages:
Heavy-Duty High-Pressure Ratings: Rated at 400 Bar (5800 PSI) continuous; peak capabilities up to 450 Bar. Built with reinforced rotating groups to handle the frequent reversing and load surges typical of excavator travel.
Advanced DA2 Automatic Control: Integrated DA mechanism modulates displacement automatically based on engine speed, preventing stalls and optimizing fuel efficiency.
Highly Integrated Solution: Built-in charge pumps, high-pressure relief valves, and charge relief valves simplify closed-loop piping and minimize potential leakage points.
Superior Power-to-Weight Ratio: The compact swashplate design delivers maximum power output within the limited space of an excavator’s pump compartment.
100% OEM Compatibility: Strictly adheres to SAE mounting standards, ensuring splined shafts and flanges align perfectly for a seamless “drop-in” replacement in major mobile machinery chassis.
Detailed Models & Parameters:
Core Series: Rexroth A4VG Series 32 (Closed Circuit).
Model Keywords: A4VG45, A4VG90, A4VG125, A4VG180, A10VO28.
Featured Configuration: A4VG90DA2D2/32R-NSF02F021DC-S.
Pressure Ratings: Rated at 400 Bar continuous; Peak capability up to 450 Bar.
Control Types: DA (Engine-speed related), EP (Electric Proportional), HD (Hydraulic).
Target Applications: Crawler excavator travel drives, rotary drilling rigs, asphalt pavers, and heavy-duty mobile vehicle propulsion.
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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