Design and Construction:
The A4VG71 pump is a variable axial piston pump, featuring a swashplate design.
This design allows for variable displacement, meaning that the pump can adjust its output flow to meet the specific demands of the hydraulic system. The swashplate mechanism enables smooth and precise control over the hydraulic fluid flow, ensuring efficient operation.
Displacement and Flow Rate:
The "71" in A4VG71 represents the nominal displacement of the pump in cubic centimeters per revolution. This displacement value determines the volume of hydraulic fluid delivered by the pump with each revolution. The A4VG71 is known for its substantial displacement, making it suitable for medium to large-sized excavators that require a higher flow rate to power various hydraulic functions.
Pressure Rating:
The pump is designed to operate at high pressure levels, which is crucial for powering heavy-duty hydraulic systems in excavators. The pressure rating of the A4VG71 pump is a key specification, ensuring that it can handle the demands of lifting, digging, and other hydraulic tasks associated with excavator operation.
Efficiency and Performance:
Rexroth is renowned for producing high-efficiency hydraulic components, and the A4VG71 is no exception.
The pump is designed to minimize energy loss and maximize overall system efficiency. This not only contributes to fuel savings but also reduces heat generation, extending the life of the pump and other hydraulic components.
Materials and Durability:
Constructed with durable materials, the A4VG71 is built to withstand the harsh conditions of construction sites. The pump's components are engineered for longevity, reducing the frequency of maintenance and repairs. This durability is especially crucial for excavators that operate in challenging environments where reliability is paramount.
Repair and Maintenance:
While the A4VG71 is built for durability, routine maintenance and occasional repairs are inevitable in any hydraulic system. Rexroth provides a range of genuine replacement parts for the A4VG71 pump to ensure optimal performance and longevity. Common parts that may require replacement include seals, bearings, pistons, and swashplate components.
Compatibility:
The A4VG71 hydraulic piston pump is designed to be compatible with a variety of hydraulic fluids, allowing flexibility in fluid selection based on the specific requirements of the application. This adaptability enhances its versatility and suitability for a wide range of excavator models.
