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Product Description
Rexroth A4VG90 Series Closed Circuit Axial Piston Variable Pump
Product Overview: The Rexroth A4VG90 series is a high-performance swashplate-type axial piston variable pump specifically engineered for Closed Circuit hydrostatic transmissions. As a premier mid-to-heavy duty model (90cc) within the A4VG family, it is renowned for its exceptional power density, rapid response, and durability under grueling operational conditions. Integrated with a charge pump and advanced control options like HD1D hydraulic pilot control, this series ensures smooth and precise travel drive performance for heavy machinery.
Key Technical Advantages:
Precise HD Hydraulic Pilot Control: The A4VG90HD1D/31R model features hydraulic proportional modulation (HD). It allows for stepless and seamless displacement adjustment via pilot pressure signals, providing superior accuracy for start-up, direction changes, and speed control in heavy mobile equipment.
Heavy-Duty High-Pressure Performance: Built for extreme load cycles, it supports a rated pressure of 400 Bar and peak cycles up to 450 Bar. Reinforced swashplate supports and precision-engineered valve plates maintain peak volumetric efficiency under continuous heavy-duty loads.
Fully Integrated Closed-Loop Solution: Features a fully integrated charge pump and built-in relief valves (boost and high-pressure), drastically simplifying piping for closed-loop systems and reducing heat generation and potential leak points.
Robust Thru-Drive Capability (F072): Equipped with superior thru-drive functionality (spec F072), supporting tandem mounting of secondary pumps to fulfill multi-circuit driving requirements.
Detailed Models & Technical Parameters:
Core Models: A4VG90 (Series 31).
Detailed Config Codes: A4VG90HD1D/31R-NZF02F072-S.
Displacement: 90 cm³/rev (90cc).
Pressure Ratings: Rated at 400 Bar (40 MPa / 5800 PSI); Peak cycles up to 450 Bar (45 MPa).
Control Methods: HD (Hydraulic Proportional / Pilot Control).
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
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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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