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QX33
Green Hydraulic
QX33
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 QX33 is a 5th-generation high-performance internal gear pump. Engineered for high-pressure industrial and mobile hydraulic markets, it features a simple, robust design with an exceptionally high volumetric efficiency of up to 98%. The QX33 utilizes a specialized tooth profile to achieve extremely low pulsation and noise levels, making it the "all-rounder" for demanding open-circuit applications up to 400 bar.
Compact and Robust Design:
The QX33 series is significantly lighter and more compact than previous generations without compromising structural integrity. Its straightforward layout with fewer components ensures maximum reliability in severe operating environments.
Ultra-Low Noise Emissions:
Through a CAE-optimized gear profile, the QX33 achieves exceptionally low noise levels, typically below 75 dB(A), even at high speeds and pressures. This makes it ideal for environments requiring quiet operation over long periods.
Superior Efficiency and Durability:
Large sealing areas and a hydrodynamic/hydrostatic lubricating film for the internal ring gear result in high volumetric efficiency. The forced lubrication of bearings enables smooth operation at low viscosities and high speeds, significantly increasing component durability.
Versatile Fluid Compatibility:
The QX33 is suitable for virtually all hydraulic fluids, including standard HLP mineral oils, biodegradable fluids, and fire-resistant HFC fluids. It is also certified for use in hazardous areas (ATEX compliant).
Variable Speed Capability:
Designed to work seamlessly with both fixed and variable-speed drives, the QX33 can provide variable delivery rates, which is essential for energy-saving servo-hydraulic systems.
| Frame Size (Model) | Displacement | Continuous Pressure | Peak Pressure | Max. Speed | Min. Speed | Approx. Weight |
| QX33-010 | 10.3 | 320 | 400 | 3400 | 1400 | 13 |
| QX33-012 | 12.6 | 320 | 400 | 3400 | 1400 | 13 |
| QX33-016 | 15.6 | 320 | 400 | 3400 | 1400 | 14.5 |
Applications
Industrial Power Units: A primary choice for high-pressure stationary systems where low noise and high efficiency are required for long-term operational stability.
Mobile Hydraulics: Optimized for compact mobile equipment requiring high power density and the ability to handle variable load shocks.
Servo-Driven Systems: Ideal for highly dynamic servo drives, where its low-pulsation flow ensures precise control and energy efficiency.
Hazardous Environments: Frequently employed in chemical, fuel transfer, or mining applications due to its ATEX certification for hazardous atmospheres.
QX33 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.
Exceptionally High Efficiency: Through a specialized gear profile and axial/radial compensation, the QX33 achieves volumetric efficiency of up to 98%, reducing energy loss and heat generation.
Ultra-Low Noise Emissions: Even at high pressures (up to 400 bar), the QX33 remains whisper-quiet (typically <75 dB), making it ideal for indoor factory environments.
Minimal Pressure Pulsation: The 5th generation internal gear design ensures extremely smooth flow, which is critical for precision control and extending the life of downstream components.
Continuous Pressure: Up to 4,640 PSI (320 bar).
Intermittent/Peak Pressure: Up to 5,800 PSI (400 bar).
This robust pressure rating allows the QX33 to handle tasks typically reserved for more expensive piston pumps.
Bucher: Original QX33 series (Direct replacement).
Voith: IPV Series.
Sumitomo: QT Series (for high-pressure versions).
To ensure a successful swap, verify the Mounting Flange (SAE or ISO), Shaft Type (Parallel Key or Spline), and Displacement (cc/rev).
Oil Type: High-performance mineral-based Anti-Wear (AW) or fire-resistant fluids.
Viscosity: Standard ISO VG32 to VG46. The optimal range is 20 to 100 cSt, though it can handle high-viscosity starts up to 1,500 cSt.
Filtration: Cleanliness is critical. A minimum filtration of ISO 4406 20/18/15 is required to prevent abrasive wear on the precision internal surfaces.
Minimum Speed: 200 – 400 RPM (Excellent for servo-driven holding pressure).
Maximum Speed: Up to 3,600 RPM, depending on the displacement and inlet 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.
QX33 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.
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.
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.
