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0102030405

Hydraulic Main Pump 584-0379 5840379 K7V280DTP E352GC E374GC E390GC E385GC Excavator Construction Machinery Parts

Axial piston variable displacement design (likely).

Two independent pump sections for dual-circuit hydraulics.

Electronic pressure/flow control (EPFC/EPR) system.

Swashplate angle control for displacement variation.

High-pressure rotating group (cylinder block, pistons, slippers).

Stationary valve plate for port timing.

Integral charge pump for case flush and pilot supply.

Pressure and flow compensator valves.

Proportional solenoid control valves (likely).

Displacement feedback sensor (e.g., resolver or RVDT).

Case drain port and flushing valve.

High-pressure relief valves (main and cross-port).

Pilot-operated control pistons for swashplate movement.

Electronic controller integration (ECM/Pump Controller).

CAN bus communication interface.

Pressure transducers on pump outlets.

Temperature sensor for oil monitoring.

Tapered roller bearings for shaft support.

Shaft seal with contamination exclusion ring.

Cast iron or ductile iron housing.

Modular design for serviceability.

Mounting flange for engine or gearbox connection.

Hydraulic displacement control pistons (servo pistons).

Anti-cavitation check valves.

Load sensing signal ports (LS system).

External drain line connections.

Anti-rotation linkage for swashplate.

Spring chambers for compensator valves.

Filtered pilot supply port.

Sealed, multi-chamber internal housing.

Product Details

Product Introduction

The excavator piston pump plays a crucial role in the hydraulic system of an excavator, which is essential for its operation. Here are the key functions and roles of the excavator piston pump:
Hydraulic Fluid Generation: The piston pump generates hydraulic fluid pressure by using pistons to compress hydraulic oil. This pressurized fluid is essential for powering various hydraulic components of the excavator.
Powering Hydraulic Functions: The hydraulic pressure produced by the piston pump is used to operate the excavator’s hydraulic cylinders, which control the movement of the boom, arm, bucket, and other attachments. This allows for precise and powerful movements necessary for excavation tasks.
Efficiency and Performance: Piston pumps are known for their high efficiency and ability to deliver a consistent flow of hydraulic fluid under varying loads. This ensures that the excavator can perform effectively in different working conditions.
Variable Displacement: Many excavator piston pumps are designed with variable displacement capabilities, allowing them to adjust the flow rate and pressure based on the demands of the hydraulic system. This feature enhances the machine’s performance and fuel efficiency.
Durability and Reliability: Piston pumps are built to withstand high pressures and harsh working environments, making them a reliable choice for heavy machinery like excavators. Their robust design contributes to the overall longevity of the hydraulic system.

Control and Precision: The hydraulic system, powered by the piston pump, allows for precise control of the excavator’s movements. Operators can make fine adjustments to the position and force applied by the excavator’s components, which is critical for tasks that require accuracy.
Excavator piston pump is a vital component that enables the hydraulic system to function effectively, providing the necessary power and control for the excavator’s operations.