Excavator spare parts ZX850-3 ZX650-3 4635645 hydraulic pump assembly for K3V280

The hydraulic pump converts mechanical energy into hydraulic energy to power the excavator's hydraulic system. When the engine drives the pump shaft to rotate, the internal pistons or gear sets create oil suction and compression processes, forming a high-pressure oil flow. Belparts hydraulic pumps feature variable displacement design that automatically adjusts output flow according to load requirements, achieving high energy efficiency.

The hydraulic pump is a vital component in excavators, converting mechanical power into hydraulic energy to operate cylinders, motors, and other actuators. It ensures efficient power transmission, enabling precise control and high performance in digging, lifting, and material handling applications.

Working Principle

Hydraulic pumps function through positive displacement, where mechanical rotation forces fluid movement. The process involves:

• Suction: Drawing fluid into the pump chamber.

• Compression: Pressurizing the fluid by reducing chamber volume.

• Discharge: Delivering high-pressure fluid to the hydraulic circuit.

• 
  

Common pump types:

• Gear Pumps – Robust and economical for medium-pressure systems.

• Piston Pumps – High-pressure, high-efficiency performance.

• Vane Pumps – Smooth flow with moderate pressure output.

GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.

Our main products are Excavator Hydraulic spare parts, Hydraulic pump, Swing motor, Travel motor, Final drive, Swing gearbox, Travel gearbox, Control valve,Monitor,Controller, Hydraulic cylinder and other hydraulic items with genuine and aftermarket quality. Until now, our products enjoy high reputation all over the world and have been exported to more than 150 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" are widely acclaimed by foreign customers.

In February 2023, Belparts Yunnan Tourism Team Building

In April 2024, Belparts participated in the Brazil Construction Machinery Exhibition and visited local clients in Brazil.

In April 2024, Belparts participated in the French Construction Machinery Exhibition and visited clients in France and Spain

In May 2024, Belparts Travel Thailand