PC50/PC60 Charge Pump for Excavator

 PC50/PC60 Charge  Pump Overview

The PC50 / PC60 Charge Pump functions as an important low-pressure oil supply unit in hydraulic systems. It is installed on the hydraulic main pump and is designed to provide the main pump with stable charge flow and charge pressure, ensuring proper oil supply for the hydraulic system during operation.

The pump operates based on the principle of volumetric hydraulic transmission. Through the meshing rotation of external gears, the volume of the sealed working chambers changes, enabling continuous suction and discharge of hydraulic oil.

The charge pump helps maintain favorable suction conditions for the main pump, supplies oil for system control circuits, and provides necessary lubrication and cooling for key internal components. When the hydraulic system operates under long-term heavy-load conditions, the charge pump ensures a stable charge pressure supply, helping prevent cavitation and insufficient oil supply. This effectively reduces wear and potential damage to critical components such as pistons, bearings, and valve plates, ensuring stable and efficient operation of the entire hydraulic system, extending equipment service life, and reducing maintenance costs.

Core Features & Advantages

• Low Noise & High Efficiency：Optimized gear design ensures smooth operation, low noise, and high volumetric efficiency.

•  Improve Main Pump Stability：Provides stable charge oil flow to maintain proper lubrication and cooling of the main pump.

• Extend Hydraulic System Service Life：Reliable charge oil supply reduces wear and helps extend the lifespan of the hydraulic system.

• Multiple Control Options：Compatible with different hydraulic control systems to meet various application requirements.

Specifications

Applications

1. Hydraulic drives with high pressure, heavy load, variability, large displacement, long service life, and reliability.

2. Steel metallurgy and forging machinery

3. Ceramic and refractory material presses

4. Shipping and hydroelectric systems

5. Rubber vulcanization and paper production

6. Petroleum equipment

7. Construction and mobile machinery

8. Railway and tunneling machines

Packaging & Delivery

Charge pumps are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

PC50 / PC60 Charge Pump FAQ 

1. What is the function of the PC50 / PC60 Charge Pump?

The charge pump supplies low-pressure oil to the main hydraulic pump, ensuring lubrication, cooling, and preventing cavitation.

2. Which machines are compatible with this charge pump?

It is designed for Komatsu PC50 and PC60 excavators and compatible models with similar hydraulic systems.

3. Can this charge pump replace the original one directly?

Yes, it is manufactured according to OEM specifications and can be directly installed without modification.

4. What are the key features of this product?

It features stable oil supply, compact design, high efficiency, and long service life.

5. Where is the charge pump installed?

The charge pump is usually mounted on the rear or side of the main hydraulic piston pump.

6. What hydraulic oil is recommended?

Use high-quality anti-wear hydraulic oil with appropriate viscosity to ensure stable operation.

7. What are common signs of failure?

Typical symptoms include low charge pressure, slow machine response, abnormal noise, and system overheating.

8. Do you provide quality testing before shipment?

Yes, each unit is tested for pressure and performance before delivery to ensure reliability.

Certifications & Quality Assurance

Charge pumps are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.

FAQ

1.How does the variable displacement work?

The pump's flow is adjusted by changing the angle of an internal swash plate. As the swash plate angle changes, the stroke length of the pistons varies, which in turn changes the volume of fluid displaced per rotation, allowing the flow rate to adapt to the system's needs.

2.Are you a manufacture for the vane pump or a wholesale ?

We are a manufacture for vane pumps。.We are located in Changzhou City, Jiangsu Province, China.Welcome to visit us.

3.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.

4.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.

5.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

6.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.

Green Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.

All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.

To meet the diverse needs of different industries, the green hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.

Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.