CBN-G300 Series
Green Hydraulic
CBN-G300 Series
Standard export carton/plywood case
Yes
ISO9001,CE
1. Industrial Hydraulic Systems 2. Mobile Equipment 3. Agricultural Machinery 4. Material Handling Vehicles
1. Industrial Hydraulic Systems 2. Mobile Equipment 3. Agricultural Machinery 4. Material Handling Vehicles
Key Shaft and Spline shaft
1 set
| Availability: | |
|---|---|
Product Description
CBN-G300 Series Internal Hydraulic 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.

High-Performance Internal Gear Design
Features advanced internal gear structure for stable flow output, high volumetric efficiency, and reliable hydraulic transmission performance.
Low Noise & Stable Operation
Optimized gear engagement reduces operating noise and pressure pulsation, ensuring smooth and quiet hydraulic system operation.
Wide Speed Range & High Efficiency
Maintains stable performance across a wide operating speed range, suitable for continuous industrial and mobile hydraulic applications.
Compact Structure & Easy Maintenance
Compact and durable construction allows convenient installation, simplified maintenance, and flexible system integration.
Durable Construction & Long Service Life
Manufactured with precision-machined components and high-strength materials for excellent wear resistance and reliable long-term operation.
Specifications

| Model | Displacement (mL/r) | Pressure (MPa) | Speed (r/min) | Efficiency | Power (kW) |
|---|---|---|---|---|---|
| CBN-G304 | 4 | 25 / 31.5 | 2000 / 3000 | ≥92% | 4.7 |
| CBN-G306 | 6 | 25 / 31.5 | 2000 / 3000 | ≥92% | 7.1 |
| CBN-G308 | 8 | 25 / 31.5 | 2000 / 3000 | ≥92% | 9.5 |
| CBN-G310 | 10 | 25 / 31.5 | 2000 / 3000 | ≥92% | 12 |
| CBN-G312 | 12 | 25 / 31.5 | 2000 / 3000 | ≥92% | 13.5 |
| CBN-G314 | 14 | 25 / 31.5 | 2000 / 3000 | ≥92% | 15.6 |
| CBN-G316 | 16 | 25 / 31.5 | 2000 / 3000 | ≥92% | 18.7 |
| CBN-G320 | 20 | 25 / 31.5 | 2000 / 3000 | ≥92% | 25 |
| CBN-G325 | 25 | 25 / 31.5 | 2000 / 3000 | ≥92% | 26 |

Applications
Applications
The CBN-G300 Series Internal Hydraulic Gear Pump delivers stable and efficient hydraulic performance for industrial and mobile systems requiring reliable oil flow, compact structure, and durable operation:
Construction Machinery: Suitable for excavators, loaders, and road construction equipment, providing dependable hydraulic power for working systems.
Agricultural Equipment: Widely used in tractors, harvesters, and agricultural machinery for steering, lifting, and auxiliary hydraulic functions.
Industrial Machinery: Applied in hydraulic presses, machine tools, and automated production systems requiring smooth and continuous hydraulic flow.
Material Handling Equipment: Ideal for forklifts, stackers, and lifting platforms operating under varying load conditions.
Mobile Hydraulic Vehicles: Installed in dump trucks, sanitation vehicles, and utility service trucks to power tipping and auxiliary hydraulic systems.
Hydraulic Power Units: Suitable for compact hydraulic stations and power packs requiring efficient, low-noise, and reliable hydraulic performance.
Factory&FAQ

CBN-G300 Series Internal Hydraulic 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.
1. What is the CBN-G300 Series Internal Hydraulic Gear Pump?
The CBN-G300 Series is a compact and efficient internal hydraulic gear pump designed for stable flow output and reliable performance in industrial and mobile hydraulic systems.
2. What makes the CBN-G300 Series different from standard gear pumps?
Efficient Oil Delivery: Precision internal gear design ensures smooth hydraulic flow and reduced pulsation.
Compact Structure: Lightweight and space-saving construction allows flexible installation.
Durable Performance: High-strength housing and components provide long service life under continuous operation.
3. What is the working pressure range of CBN-G300 Series pumps?
The CBN-G300 Series is suitable for medium and high-pressure hydraulic applications:
Continuous Pressure: Up to 20 MPa (≈ 2900 PSI).
Maximum Pressure: Up to 25 MPa (≈ 3600 PSI).
It is widely used in construction machinery, agricultural equipment, and industrial hydraulic systems.
4. Can CBN-G300 Series pumps replace other brands?
Yes, the CBN-G300 Series can replace many standard internal hydraulic gear pumps, including:
Parker Gear Pumps
Rexroth Internal Gear Pumps
Shimadzu Hydraulic Pumps
Please confirm mounting dimensions, shaft type, and displacement before replacement.
5. What hydraulic oil is recommended for CBN-G300 Series pumps?
To ensure stable operation and durability:
Oil Type: Anti-wear hydraulic oil (AW type).
Viscosity: ISO VG32–VG68 recommended.
Filtration: Clean hydraulic oil helps reduce internal wear and extend pump service life.
6. What is the typical speed range of CBN-G300 Series pumps?
The CBN-G300 Series supports flexible operating speeds:
Minimum Speed: 600 RPM
Recommended Speed: 800–2500 RPM
Maximum Speed: Up to 3000 RPM depending on displacement and operating conditions.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
Please provide the following details:
Model or displacement
Working pressure
Speed
Quantity
We will reply within 12 hours with a competitive quotation.
CBN-G300 Series Internal Hydraulic 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.
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.
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.
Of course we can. Just send me your logo we can make it for you.
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.