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Rexroth A20VG045 Tandem Pump | A20VG045HT1 | R902136507 | Double Variable Piston Pump

Model Number

A22VG, A22VG045, A22VG045HT, A20VG045HT1003E0/11BRNB2S53UB2S4A-S R902136507

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Product Description

Rexroth A20VG045 Series Axial Piston Variable Double Pumps

Product Overview: The Rexroth A20VG045 series is a high-performance tandem variable displacement pump specifically engineered for hydrostatic closed-circuit transmissions. Models such as the A20VG045HT1003E0… (Part No. R902136507) feature two independently adjustable pumps on a single drive shaft, providing precise power distribution for the left and right drive wheels of mobile machinery like loaders, graders, and pavers. Its advanced swashplate design, coupled with HT (Hydraulic Proportional Control), ensures exceptional tractive effort and handling smoothness across complex terrains.

Key Technical Advantages:

  • Integrated Tandem Design: Delivers dual-channel output within a compact housing, significantly saving space in engine compartments and simplifying hydraulic plumbing.

  • Optimized for Closed-Circuit Systems: Equipped with a built-in charge pump and high-pressure relief valves to maintain system stability during frequent reversals and heavy-duty load cycles.

  • Precise HT Variable Control: Provides highly responsive displacement adjustments based on pilot hydraulic signals, ensuring smooth acceleration and deceleration while minimizing mechanical stress.

  • Heavy-Duty Pressure Capability: Rated for continuous operation at 300-350 Bar with peak capability up to 400 Bar, guaranteeing long-term reliability in the harshest environments.

  • 100% OEM Standard Compatibility: Manufactured to strict Rexroth Series 11 specifications, ensuring mounting flanges, splined shafts, and porting align perfectly for a seamless “drop-in” replacement.

Detailed Models & Parameters:

  • Core Series: Rexroth A20VG Series 11.

  • Full Model Keywords: A20VG045HT1003E0/11BRNB2S53UB2S4A-S.

  • Key Part Number: R902136507.

  • Displacement: 45.0 cm³/rev (per tandem section).

  • Pressure Ratings: Rated at 300 Bar (4350 PSI) continuous; Peak capability up to 350-400 Bar.

  • Rotation: R (Clockwise/CW).

  • Target Applications: Skid Steer Loaders, Roller drive systems, Pavers, Forestry machinery, and Hydrostatic chassis drives.


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.
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Our Advantages

Fast & Reliable Delivery

We optimize global logistics channels to ensure every customer receives their goods on time, anywhere in the world.

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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