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QT Series Low Pressure Gear Pump
Green Hydraulic
Standard export carton/plywood case
Yes
ISO9001，CE
Industrial Hydraulics: Ideal for machine tools and precision presses that require exact pressure and speed.Machinery: Frequently utilized in injection molding, forging, and elevator machinery.Auxiliary Systems: Often deployed in dedicated lubrication circuits, cooling systems, and small hydraulic systems.
Industrial Hydraulics: Ideal for machine tools and precision presses that require exact pressure and speed.Machinery: Frequently utilized in injection molding, forging, and elevator machinery.Auxiliary Systems: Often deployed in dedicated lubrication circuits, cooling systems, and small hydraulic systems.
Key Shaft and Spline shaft
1 set
Product Description
Low Noise Operation: Special gear geometry ensures quiet running, even at high speeds and operating pressures.
Low Pressure Pulsation: Minimizes pressure waves for highly precise speed and system control.
High Durability: Forced lubrication and precision-engineered internal gears reduce mechanical surface wear.
Energy Efficient: Optimizes power consumption, especially when paired with variable frequency drives (VFDs) and servo systems
Specifications
| Model | Nominal Displacement (ml/r) | Rated Pressure (MPa) | Max Pressure (MPa) | Max Speed (r/min) |
|---|---|---|---|---|
| QT‑D80‑G40F | 20 | 6.3 | 8.0 | 3000 |
| QT‑D80‑G40F | 25 | 6.3 | 8.0 | 3000 |
| QT‑D80‑G50F | 32 | 6.3 | 8.0 | 3000 |
| QT‑D80‑G63F | 40 | 6.3 | 8.0 | 2000 |
| QT‑D80‑G63F | 50 | 6.3 | 8.0 | 2000 |
| QT‑D100‑G40F | 63 | 6.3 | 8.0 | 2000 |
| QT‑D100‑G50F | 80 | 6.3 | 8.0 | 2000 |
| QT‑D100‑G63F | 100 | 6.3 | 8.0 | 2000 |
| QT‑D125‑G40F | 125 | 6.3 | 8.0 | 2000 |
| QT‑D125‑G40F | 160 | 6.3 | 8.0 | 1500 |
| QT‑D125‑G50F | 200 | 6.3 | 8.0 | 1500 |
| QT‑D125‑G63F | 250 | 6.3 | 8.0 | 1500 |
Applications
Applications
Industrial Hydraulics: Ideal for machine tools and precision presses that require exact pressure and speed.
Machinery: Frequently utilized in injection molding, forging, and elevator machinery.
Auxiliary Systems: Often deployed in dedicated lubrication circuits, cooling systems, and small hydraulic systems.
Factory & FAQ
QT Series Low Pressure Gear Pump 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.
QT Series Low Pressure Gear Pump FAQ
1. What are the main features of the QT Series?
They feature a specialized internal gear design that delivers extremely low noise levels, high energy efficiency, and exceptionally low pressure ripple .
2. What fluids are compatible with this pump?
These pumps are compatible with standard anti-wear hydraulic oils and can even handle lower lubricity fluids (such as water-glycol) while maintaining low abrasion rates.
3. Why is my QT gear pump failing to build pressure?
Insufficient pressure can be caused by leaking seals, a blocked suction line or oil filter, excessive oil viscosity, or incorrect drive motor speed. Internal wear from prolonged use or particulate contamination may also prevent the pump from developing sufficient pressure.
4. How can I troubleshoot pump noise and vibration?
Noise is often a symptom of air getting trapped in the hydraulic fluid (cavitation). Check the suction line for sealing failures, ensure your fluid reservoir is sufficiently full, and replace blocked oil filters to resolve this.
5. Can I adjust the flow rate of the QT pump?
Because QT pumps are typically fixed-displacement pumps, the most effective and safe way to adjust flow is by altering the drive motor's speed (RPM) using a servo drive or inverter, rather than throttling the outlet.
6. What is the recommended maintenance schedule?
Regular maintenance includes monitoring hydraulic oil levels and removing any air from the system. You should frequently check the suction line for leaks and regularly clean or replace the oil filter to prevent wear on the gears.
Standard mounting: ISO 3019/2 or SAE flange
Rotation direction: right-hand (clockwise)
No radial or axial load should be applied to the shaft
Proper installation is critical for performance and durability.
They are widely used in:
CNC machine tools
Injection molding machines
Hydraulic power units
Industrial automation systems
Press machinery
QT Series Low Pressure Gear Pump 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.
