Excavator Hydraulic Pump

The main characteristics of excavator hydraulic pumps 708-2L-00680 include compact structure, good wear resistance, strong sealing, and easy adjustment. For example, the Carter 320 hydraulic pump adopts a compact design, with small volume, light weight, and easy installation and use. This design not only saves space, but also improves the overall flexibility of the equipment

In addition, the plunger and cylinder body are made of wear-resistant materials, which have good wear resistance and greatly extend the service life of the hydraulic pump.

The Carter 320 hydraulic pump also adopts a multiple sealing structure, effectively preventing oil leakage and air entry, ensuring the stability and reliability of the hydraulic system.

The hydraulic pump of the excavator is driven by the engine to rotate, generating high-pressure hydraulic oil, which drives various actions of the entire machine through hydraulic motors and hydraulic cylinders and other actuating components. Hydraulic pumps efficiently convert mechanical energy into hydraulic pressure energy, and common types include gear pumps and plunger pumps. Gear pumps change the volume of liquid through the rotation of two gears, while plunger pumps control the pressure of liquid through the reciprocating motion of the plunger. In large and medium-sized excavators, plunger pumps and gear pumps are usually combined to form a hydraulic pump assembly. The main pump usually uses a plunger pump, while the pilot pump uses a gear pump.

The hydraulic pump is the core component of the excavator hydraulic system, responsible for converting the power of the engine into hydraulic energy, and driving various actions of the excavator through hydraulic oil, such as hydraulic motors and hydraulic cylinders. The engine provides power to the hydraulic pump, and the hydraulic pump, hydraulic oil pipeline, hydraulic motor, and hydraulic cylinder together constitute the hydraulic transmission system, while the distribution valve is responsible for precise hydraulic control‌

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