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VG11
Green Hydraulic
VG11
Standard export carton/plywood case
Yes
ISO9001，CE
• Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)
1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry
Key Shaft and Spline shaft
1 set
Product Description
The VG11 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.
Specifications
| Parameter | Specification |
| Pump Type | Fixed-displacement tandem internal gear pump |
| Configuration | Dual pump sections, common drive shaft, independent suction/discharge ports |
| Displacement Range (per section) | 25, 32, 40, 50, 63 cc/rev (custom combinations available) |
| Continuous Working Pressure | Up to 350 bar (5,075 psi) |
| Intermittent/Peak Pressure | Up to 400 bar (5,800 psi) |
| Speed Range | 300–2,500 RPM (continuous); up to 3,000 RPM (intermittent) |
| Rotation Direction | Clockwise (CW), Counter-clockwise (CCW), or reversible |
| Mounting Flange | Standard SAE “A” or equivalent industrial flanges |
| Shaft Type | Straight key shaft or spline shaft (custom options available) |
| Construction Material | High-strength cast iron housing, hardened steel gears, pressure-balanced wear plates |
| Hydraulic Fluid Requirements | Premium mineral-based AW hydraulic oils, ISO VG32–VG68 recommended |
| Filtration Recommendation | ISO 4406 18/16/13 cleanliness level to protect internal components |
| Volumetric Efficiency | ≥ 92% at rated pressure and speed |
| Operating Temperature Range | -20°C to +80°C (-4°F to +176°F) |
| Noise Level | ≤ 68 dB(A) at 1,500 RPM, 100 bar |
Applications
Applications
Construction Machinery: Ideal for excavators, loaders, and aerial work platforms, where the tandem design delivers separate power for both travel and work functions from a single drive source.
Injection Molding Machines: A trusted choice for dual-loop hydraulic systems, providing dedicated flow for clamping and injection functions to ensure precise, stable molding cycles.
Agricultural Equipment: Used in tractors, harvesters, and sprayers to power steering, lifting, and auxiliary circuits simultaneously, withstanding the contamination-prone conditions of field operations.
Material Handling Systems: Suited for forklifts, pallet jacks, and conveyor systems, offering independent flow for lifting and propulsion functions while maintaining high efficiency under heavy loads.
Machine Tools & Automation: Deployed in CNC machinery, press brakes, and assembly lines to drive clamping, feeding, and auxiliary systems, with low pulsation ensuring smooth, consistent operation.
Mobile Hydraulic Systems: Integrated into utility vehicles, garbage trucks, and snow plows to power multiple functions (lifting, compaction, and auxiliary hydraulics) from a single pump assembly.
Factory&FAQ
VG11 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.
Dual-Circuit Design: Unlike single pumps that provide only one flow output, the VG11’s tandem structure delivers two independent flows from one unit, eliminating the need for two separate pumps and reducing installation space.
High Efficiency & Low Noise: Its internal gear design offers lower noise, reduced pulsation, and higher volumetric efficiency compared to conventional external gear pumps, even at low speeds.
Integrated Durability: Built with robust cast iron construction and pressure-balanced wear plates, it maintains stable performance in high-pressure, high-cycle applications better than many single aluminum pumps.
Continuous Pressure: Up to 5,075 PSI (350 bar).
Intermittent/Peak Pressure: Up to 5,800 PSI (400 bar).
This robust pressure rating makes it ideal for driving high-force actuators and dual-loop systems in industrial and mobile machinery.
Nachi VDR Series
Rexroth 2FR Series
Yuken A10V Tandem Configurations
To ensure a successful swap, verify the Mounting Flange, Shaft Type, and Displacement Combinations (both pump sections) to match your existing system.
Oil Type: Premium mineral-based hydraulic fluids with strong Anti-Wear (AW) and anti-foam additive packages.
Viscosity: Standard ISO VG32 to VG68. The optimal operating range is 100 to 150 SUS (20 to 30 cSt), though it can handle cold starts up to 2,000 SUS (430 cSt).
Filtration: Cleanliness is critical for wear plate performance. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent abrasive particles from damaging the gear faces and plates.
Minimum Speed: 300 RPM (for low-speed, low-noise operation in servo systems).
Maximum Continuous Speed: 2,500 RPM (varies slightly by displacement).
Peak Intermittent Speed: Up to 3,000 RPM (for short-duration high-demand cycles).
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.
VG11 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.
