Rexroth A4VG variable hydraulic pump for Komatsu wheel loader 42T1711101YF 42T1721120YF 42U1721100YF 42U1711151YF 42W1721010YF 840220112

The Rexroth A4VG is a high-pressure, closed-circuit axial piston pump known for its swashplate design. This allows for variable displacement, meaning the pump's output flow can be adjusted infinitely to match the exact demands of the system, from a gentle feathering of the bucket to a full-power lift. This design is fundamental to achieving the efficiency and controllability expected from a modern wheel loader.

The A4VG in Komatsu Loaders: A Perfect Match

Komatsu is known for integrating robust, reliable components into its wheel loaders, and the Rexroth A4VG pump is a prime example. This pump is specifically engineered to meet the high demands of Komatsu equipment.

Applications in Komatsu Models

The A4VG series is a common fitment across various Komatsu wheel loader models. For instance, the A4VG125 variant is documented for use in the Komatsu WA320-6 wheel loader, a popular model in the 3-tonne class known for its versatility and power. Similarly, the A4VG125 pump, in a 14T/26T charge pump configuration, is also cited for use in the Komatsu WA200-5, a smaller but equally demanding loader. This highlights the adaptability of the pump across different machine sizes and power requirements.

Integrating with Loader Systems

The pump doesn't work in isolation; it is the core component of a complex hydraulic system. For a machine like the Komatsu WA320-8, the hydraulic system is designed for high efficiency, with the pump delivering a capacity of 180 litres per minute at rated rpm to handle the steering and loader control functions. This system manages high pressures, with relief valves set to handle intense loads, such as a loader control setting of 30.4 MPa. The A4VG's ability to handle peak pressures up to 450 bar makes it perfectly suited for these demanding cycles.

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Q1: Is the A4VG pump an open or closed-circuit design?

A1: The Rexroth A4VG is a closed-circuit design, which is standard for hydrostatic transmissions in mobile machinery, offering high efficiency and precise control.

Q2: What is the purpose of the integrated boost pump on the A4VG?

A2: The integrated boost pump on the A4VG acts as a feed and control oil pump for the closed circuit. It ensures a constant supply of fresh, cool oil to the main circuit, preventing cavitation and providing the necessary pressure for the pump's control functions.

Q3:What is the price and delivery time of the A4VG hydraulic pump for the Komatsu wheel loader?

A3: The specific price and delivery time will depend on the equipment model or specific product model you provide.

Q4:How to purchase an A4VG hydraulic pump for a Komatsu wheel loader?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.