Aluminum Alloy Hydraulic Gear Pump: Lightweight, Durable, and Efficient Power Solutions
Fairy Deer Benefits Of Aluminum Alloy Hydraulic Gear Pump
Lightweight design reduces overall system weight and enhances equipment flexibility;
High wear resistance ensures stable operation under high pressure and heavy loads;
Excellent thermal conductivity prevents overheating, extending gear pump lifespan;
Strong corrosion resistance suitable for humid or corrosive environments;
Precision CNC machining guarantees smooth, quiet operation with minimal maintenance;
COMPARISON
Features:
Aluminum alloy is characterized by its lightweight nature, with a density of about 2.7 g/cm³, significantly reducing overall equipment weight and improving fuel efficiency and maneuverability. It naturally forms a protective oxide layer, offering excellent corrosion resistance suitable for humid and corrosive environments. Aluminum alloy has high thermal conductivity, enabling fast heat dissipation to prevent overheating. It boasts a high strength-to-weight ratio, good toughness, superior impact resistance, and ease of machining suitable for complex precision parts. In contrast, cast iron has a higher density (~7.2 g/cm³), is heavier and prone to rust, has lower thermal conductivity leading to slower heat dissipation, and while strong, is brittle and harder and more costly to machine.
Advantages:
Aluminum alloy reduces equipment weight, enhancing fuel economy and operational flexibility, with excellent corrosion resistance and heat dissipation that prolong equipment life and reduce maintenance costs. Its good machinability supports complex designs and high-precision manufacturing, meeting modern lightweight and high-performance demands. Cast iron excels in compressive strength and wear resistance, suitable for heavy loads and high-wear environments but is heavier, prone to corrosion, and more expensive to process and maintain.
Ideal Applications:
Aluminum alloy is widely used in automotive engine parts, aerospace, robotics, and lightweight machinery where high performance, energy efficiency, and flexibility are critical. Cast iron is preferred for heavy machinery, piping, brake rotors, and other traditional applications requiring high wear resistance and load-bearing capacity, especially in harsh conditions.
Features:
Straight-tooth gear pumps use straight gears with teeth parallel to the shaft axis, featuring simple structure and lower manufacturing costs. Helical gear pumps use angled teeth, providing smoother meshing, reduced noise and vibration, making them suitable for high-speed and heavy-load conditions.
Advantages:
Straight-tooth gear pumps have no axial thrust, are easier to install and maintain, and offer higher transmission efficiency, ideal for low-speed or low-to-medium pressure applications. Helical gear pumps have larger tooth contact area, higher load capacity, smoother engagement, more uniform flow, and longer service life, but require axial thrust balancing and have higher manufacturing costs.
Ideal Applications:
Straight-tooth gear pumps are suitable for general industrial hydraulics, low-speed machinery, and cost-sensitive environments. Helical gear pumps are widely used in high-performance hydraulic systems, automotive power steering, heavy machinery, and equipment requiring high stability and low noise.
Features:
External gear pumps consist of two external gears meshing outside, featuring a simple structure, compact size, and lower manufacturing and maintenance costs. Internal gear pumps consist of an internal gear and an external gear, with the internal gear enclosing the external one, resulting in smoother meshing, better sealing, and quieter operation.
Advantages:
External gear pumps have fewer moving parts, are easier to manufacture and maintain, operate well at high speeds, provide stable and reversible flow, and handle various fluids. Internal gear pumps offer lower leakage, higher volumetric efficiency, stronger pressure resistance, quieter operation, and longer service life due to their internal-external gear meshing, making them suitable for high-pressure and precision hydraulic systems.
Ideal Applications:
External gear pumps are widely used in machinery, industrial hydraulics, petroleum, and chemical industries, ideal for applications prioritizing cost-effectiveness and ease of maintenance. Internal gear pumps are commonly applied in agricultural machinery, marine, aerospace, precision machine tools, and special equipment, where high efficiency, low noise, and reliability are critical.
Recommended Aluminum Alloy Gear Pump
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Aluminum Alloy Hydraulic Gear Pumps - Durable, Lightweight Power Solutions for Diverse Industries
Discover aluminum alloy hydraulic gear pumps, engineered for high efficiency and reliability across various sectors. Benefit from lightweight construction, excellent corrosion resistance, and superior heat dissipation, ensuring stable performance in automotive, agriculture, industrial machinery, and construction applications. Designed for easy installation and low maintenance, Ketulla pumps deliver quiet operation and long service life to meet your hydraulic power needs.
Construction Machinery - Excavator
Provide hydraulic power support to drive boom and bucket operations.
Construction Machinery - Loader
Hydraulic systems used for loading, unloading and handling operations, adapting to frequent load changes.
Agricultural Machinery - Tractor
Hydraulic steering and suspension systems to improve operational flexibility.
Agricultural Machinery - Sugarcane/ Maize Harvesters
Efficient hydraulic power support to cope with complex terrain.
Industrial Equipment - Hydraulic Machine Tools
High-pressure output meets metal processing needs.
Mining Machinery - Coal Mining Machine
Corrosion-resistant design to adapt to the humid environment underground.
Mining Machinery - Crusher
Stable operation under high pressure and heavy load, extending equipment life.
Marine & Port Equipment - Port Cranes
Multi-pump design supports complex lifting actions.
FAQs
Aluminum alloy gear pumps have the core advantages of lightweight (30-50% lighter than cast iron pumps), corrosion resistance (adaptable to humid/chemical environments) and high heat dissipation. They are particularly suitable for equipment that requires frequent movement or limited space, such as construction machinery, agricultural machinery, and ship hydraulic systems. Its low density can reduce the overall energy consumption of the equipment and extend the life of the motor.
The lifespan depends on the material matching and lubrication design (such as magnetic coupling seals to reduce the risk of leakage). Regular inspection of shaft seal wear and oil cleanliness (recommended filtration accuracy ≤25μm) can extend the service life. Compared with cast iron pumps, aluminum alloy pumps reduce the frequency of rust maintenance due to corrosion resistance, and the comprehensive maintenance cost is reduced by about 15-30%.
Through high-strength casting technology (such as T6 heat treatment) and side plate reinforcement design, aluminum alloy gear pumps can withstand working pressures up to 500 bar, meeting the heavy-duty requirements of mining machinery, metal processing equipment, etc. Key components such as gears are plated with alloy steel to balance lightweight and strength.
Mainstream aluminum alloy gear pumps use standardized interfaces (such as SAE flanges) and modular design, which can be seamlessly integrated with hydraulic valve groups of brands such as Bosch Rexroth and Parker. Some manufacturers (such as CML) provide customized shaft key size adaptation services to reduce system modification costs.
How to select models for high-temperature or corrosive media environments?
It is necessary to match high-temperature resistant sealing materials (such as fluororubber/FKM) and anti-corrosion coated gears (such as PTFE coating). For example, it is recommended to select a PPS composite pump body when conveying sulfuric acid and configure a magnetic coupling to avoid dynamic seal failure.
How to reduce noise levels to meet environmental standards?
The use of double-row gear design (such as DEGB series) can reduce pressure pulsation and noise (<65dB). Optimizing tooth shape (helical gear/herringbone gear) and fluid dynamics design further reduce vibration, which is suitable for silent scenes such as medical equipment and indoor logistics machinery.
How to select the right model based on flow rate requirements?
The flow rate range covers 20ml/min to 50L/min, and comprehensive considerations are required:
Low flow precision control (such as EGA series: 1.2-6.2cc/rev, suitable for laboratory instruments);
High flow industrial scenarios (such as DEGB series: 22.7-26.5cc/rev, suitable for presses and lifting platforms)
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