Belparts Excavator Main Pump Nachi PVD-1B-32P-11G5 Hitachi EX30

Belparts excavator main pump Nachi PVD-1B-32P-11G5 Hitachi EX30

The hydraulic pump of an excavator is the core component of the hydraulic system, providing power to the entire system like a heart. It converts the mechanical energy of the engine into hydraulic energy, drives the hydraulic cylinder and hydraulic motor to work, and thus completes various actions of the excavator.

Two types

Gear pump: With a simple structure, low cost, and strong anti pollution ability, but with large flow pulsation and high noise, it is mostly used in small excavators or auxiliary systems.

Piston pump: with complex structure and high cost, but high working pressure, large flow rate, high efficiency, and high control accuracy, it is widely used in medium and large excavators.

Working principle

Oil suction process: The plunger moves backwards, the pump chamber volume increases, forming a vacuum, and the hydraulic oil in the oil tank enters the pump chamber under atmospheric pressure.

Oil pressure process: The plunger moves forward, the pump chamber volume decreases, the hydraulic oil is compressed, the pressure increases, the oil outlet valve is pushed open, and high-pressure oil enters the hydraulic system.

performance parameter

Displacement: The volume of oil discharged by the pump shaft per revolution determines the working speed and force of the excavator.

Pressure: The pressure of the oil at the pump outlet determines the working capacity of the excavator.

Rotational speed: The rotational speed of the pump shaft affects the flow rate and lifespan of the pump.

Efficiency: The ratio of output power to input power of a pump, reflecting energy loss.

Mainly engaged in excavator hydraulic pumps, final drive, travel motors, swing motors, distribution valves,control valve assy,reduction gearbox,cylinder assy and various hydraulic spare parts.
Excavator hydraulic one-stop service, we can provide Komatsu, Hitachi, Kato, Doosan, Hyundai, Sany, Liugong, Sunward Intelligent, hydraulic pumps of various tonnage models, distribution valves, travel assemblies, travel motors, swing motors and hydraulic spare parts.

PVD-1B-32CP-9AG5

PVD-1B-32CP-8AG5

PVD-1B-32CP-11G5

PVD-1B-24BP-8AG5

PVD-1B-31BP-8AG5

PVD-1B-32BP-12G5

PVD-0B-16BP-6AG4

PVD-0B-18B-5

PVD-1B-34P-11G5

PVD-0B-18P-6G3

PVD-00B-14P-5G3

PVD-00B-15P-5AG3

PVD-00B-16P-6AG3

PVD-0B-24P-11AG5

PVD-0B-24P-8G3

PVD-0B-24P-6G3

PVD-0B-12P-5G

PVD-0B-21P-6G3

PVD-1B-25P-8G5

PVD-1B-28P-8AG4

PVD-00B-18P-6AG4

PVD-0B-19P-6G3

PVD-0B-17P-6G3

PVD-1B-32P-11G5

PVD-15B-32P-9AG5

PVD-15B-37P-11G5

PVD-1B-32P-G8

PVD-0B-24P-G3

After sales guarantee service

1.quick response

Provide a 24-hour service hotline to promptly respond to customer needs and ensure quick resolution of issues.

2.Professional maintenance

Equipped with a professional technical team, providing on-site service, and using original accessories to ensure equipment performance.

3.Regular maintenance

Provide regular maintenance plans to extend equipment lifespan and improve work efficiency.

4.technical support

Provide operational training and technical consultation to help customers better use the equipment.

5.Warranty Commitment

Core components enjoy quality assurance services to ensure customer rights and worry free use.

We always aim for customer satisfaction and ensure efficient operation of equipment!