CBN-300 Series Internal Gear Pump Working

CBN-300 Series Internal Gear Pump Overview

The CBN-300 Series Internal Gear Pump is a high-performance, fixed-displacement tandem internal gear pump engineered for compact hydraulic systems requiring dual-circuit power with exceptional efficiency and reliability. Built on a shared drive shaft with integrated dual pump sections, it delivers independent flow outputs for two separate hydraulic functions, offering a high power-to-space ratio ideal for mobile machinery, injection molding machines, and servo hydraulic systems where footprint and performance are critical.

Features and Benefits

• High-Efficiency Internal Gear Structure
  Adopts advanced internal gear design to deliver stable flow output, high volumetric efficiency, and smooth hydraulic performance.

• Low Noise & Low Pulsation
  Optimized gear profile effectively reduces operating noise and pressure pulsation, ensuring quiet and stable system operation.

• Compact Design & Easy Installation
  Compact and lightweight structure allows flexible installation and convenient maintenance in various hydraulic systems.

• Wide Operating Range
  Suitable for industrial machinery, hydraulic power units, construction equipment, and mobile hydraulic applications.

• Reliable Operation & Long Service Life
  Precision manufacturing and durable materials provide excellent wear resistance, stable performance, and extended service life under continuous working conditions.

Model Codes

gear pump.pdf

Applications

The CBN-300 Series Internal Gear Pump provides reliable and efficient hydraulic power for industrial and mobile hydraulic systems requiring stable flow, durable construction, and compact installation:

• Construction Machinery: Suitable for loaders, excavators, and road machinery, supplying stable hydraulic power for lifting and working systems.

• Agricultural Equipment: Widely used in tractors, harvesters, and spraying equipment for steering, lifting, and auxiliary hydraulic functions.

• Industrial Hydraulic Systems: Applied in hydraulic presses, machine tools, and automation equipment requiring continuous and smooth hydraulic flow.

• Material Handling Equipment: Ideal for forklifts, lifting platforms, and warehouse systems operating under heavy-duty conditions.

• Mobile Hydraulic Vehicles: Installed in dump trucks, sanitation vehicles, and utility trucks to support tipping and hydraulic control systems.

• Hydraulic Power Units: Suitable for compact hydraulic stations and hydraulic power packs where reliable operation and low maintenance are required. 

Packaging & Delivery

CBN-300 Series Internal Gear 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.

CBN-300 Series Internal Gear Pump FAQ:

1. What is the CBN-300 Series Internal Gear Pump?

The CBN-300 Series is a high-efficiency internal gear pump designed for stable hydraulic flow, compact installation, and reliable operation in industrial and mobile hydraulic systems.

2. What makes the CBN-300 Series different from standard gear pumps?

• Stable Flow Output: Precision internal gear structure provides smooth and efficient oil delivery.

• Compact & Durable Design: High-strength housing ensures reliable long-term operation.

• Low Noise Performance: Optimized gear design helps reduce vibration and operating noise.

  
  

3. What is the working pressure range of CBN-300 Series pumps?

The CBN-300 Series is suitable for medium and high-pressure hydraulic systems:

• Continuous Pressure: Up to 20 MPa (≈ 2900 PSI).

• Maximum Pressure: Up to 25 MPa (≈ 3600 PSI).
  It is widely used in agricultural machinery, industrial equipment, and construction machinery.

  
  

4. Can CBN-300 Series pumps replace other brands?

Yes, the CBN-300 Series can replace many standard internal gear pumps, including:

• Parker Gear Pumps

• Rexroth Internal Gear Pumps

• Shimadzu Gear Pumps
  Please verify mounting dimensions, shaft type, and displacement before installation.

  
  

5. What hydraulic oil is recommended for CBN-300 Series pumps?

For reliable performance and extended service life:

• Oil Type: Anti-wear hydraulic oil (AW type).

• Viscosity: ISO VG32–VG68 recommended.

• Filtration: Clean hydraulic oil is essential to minimize internal wear and improve durability.

  
  

6. What is the typical speed range of CBN-300 Series pumps?

The CBN-300 Series is designed for flexible operating conditions:

• Minimum Speed: 600 RPM

• Recommended Speed: 800–2500 RPM

• Maximum Speed: Up to 3000 RPM depending on displacement and working conditions.

  
  

7. Do you provide OEM or customized services?

Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.

8. How can I get a quotation quickly

Please provide the following details:

• Model or displacement

• Working pressure

• Speed

• Quantity
  We will reply within 12 hours with a competitive quotation.

Certifications & Quality Assurance

CBN-300 Series Internal Gear 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.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.

2.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.

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

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

4.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.