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Rexroth A4VG40 + A10VG45 Tandem Pump | A4VG40EP4D1 | A10VG45EP4D1 | Concrete Pump Truck Hydraulic Main Pump

Model Number

A4VG28EP4D1/32L+A10VG28EP4D1/10L-K

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Product Description

Rexroth A4VG40 + A10VG45 Tandem Axial Piston Variable Pump

Product Overview: This high-performance tandem pump assembly integrates the legendary Rexroth A4VG40 and A10VG45 axial piston variable pumps, specifically engineered for Concrete Pump Trucks, mixers, and heavy-duty mobile machinery. This combination features two independent closed-circuit pumps: the front A4VG40 powers the main drive system, while the rear A10VG45 manages auxiliary or travel controls. Equipped with advanced EP Electro-proportional control technology, it ensures precise flow distribution and dynamic response under complex working conditions. The robust tandem design significantly saves installation space, making it the vital core of concrete machinery hydraulic systems.

Key Technical Advantages:

  • Efficient Tandem Construction: Utilizing through-drive technology, the A4VG40 and A10VG45 are compactly coupled to provide dual-circuit independent control while simplifying PTO (Power Take-Off) installation.

  • Advanced Electric Proportional Control (EP4): Features built-in electro-proportional displacement modulation for microsecond-level response, ensuring smooth transitions between pumping and traveling modes without shocks.

  • High Pressure & Reliability: The A4VG main pump is rated at 400 Bar (5800 PSI), easily handling the instantaneous high-pressure loads generated during concrete pumping for superior construction efficiency.

  • Integrated Charge System: Both circuits feature highly integrated charge pumps and relief valves, simplifying closed-loop piping layouts and minimizing potential leakage risks.

  • Heavy-Duty Long-Life Design: Tailored for harsh construction environments with reinforced bearings and wear-resistant piston groups, ensuring an extended service life under high temperatures and dusty conditions.

Detailed Models & Parameters:

  • Core Series: Rexroth A4VG Series 32 & A10VG Series 10.

  • Full Model Keyword: A4VG40EP4D1/32L + A10VG45EP4D1/10L-K.

  • Displacements: 40 cm³/rev (A4VG) + 45 cm³/rev (A10VG).

  • Pressure Ratings: Rated at 400 Bar (A4VG) / 300 Bar (A10VG).

  • Control Type: EP (Electric Proportional Control).

  • Target Applications: Sany/Zoomlion concrete pump trucks, transit mixer drives, road cold millers, and large-scale sanitation machinery.

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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