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HGP-3A
Green Hydraulic
HGP-3A
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
Product Description
The HGP-3A is a high-performance, fixed-displacement external gear pump engineered for compact, reliable hydraulic systems requiring consistent flow and durability. Featuring a rugged aluminum alloy housing with precision-machined gears, the HGP-3A is specifically designed to deliver high efficiency in a compact footprint, making it an ideal choice for direct mounting in mobile machinery, forklifts, agricultural equipment, and industrial applications where space is limited and dependable performance is essential.
Specifications
| Parameter | Specification |
| Pump Type | Fixed displacement external gear pump |
| Construction | Aluminum alloy housing, hardened steel gears, high-strength bearings |
| Displacement Range | 4.0 – 30.0 cc/rev (common models: 6, 8, 11, 13, 14, 17, 19, 23, 25, 28, 30 cc/rev) |
| Rated Continuous Pressure | Up to 210 bar (3,000 psi) |
| Peak/Intermittent Pressure | Up to 250 bar (3,625 psi) |
| Operating Speed Range | 700 – 3,000 rpm |
| Recommended continuous: 1,800 – 2,500 rpm | |
| Rotation Direction | Clockwise (standard), counter-clockwise optional |
| Mounting Options | SAE “A” 2-bolt flange, DIN 4-bolt flange, foot-mount |
| Shaft Options | Straight keyed shaft (standard), spline shaft optional |
| Port Orientation | Side inlet/outlet, rear port optional |
| Weight | 2.2 – 3.0 kg (depending on displacement) |
Applications
Applications
Forklift & Material Handling Equipment: A preferred choice for counterbalance forklifts, reach trucks, and stackers, where the lightweight HGP-3A integrates easily with compact power units to deliver steady lifting and tilting power.
Agricultural Machinery: Optimized for tractors, seeders, fertilizer spreaders, and small harvesters, where its robust construction handles variable load shocks and common fluid contamination in outdoor field environments.
Construction & Utility Vehicles: Widely used in mini excavators, skid-steer loaders, and small utility trucks, offering durable, high-efficiency power for hydraulic cylinders and auxiliary circuits.
Commercial & Industrial Hydraulic Systems: Ideal for machine tools, conveyor systems, and small hydraulic presses, where consistent flow and low noise operation support reliable performance in continuous-duty cycles.
Mobile Tailgate & Lift Systems: Frequently employed in truck tail-lifts, ramp systems, and light-duty aerial work platforms, providing a space-efficient power source that maintains efficiency under heavy load conditions.
Specialty Mobile Equipment: Commonly used in electric pallet jacks, cleaning vehicles, and light-duty snow plow systems, where the compact footprint and dependable pressure output ensure reliable operation in space-constrained setups.
Factory&FAQ
HGP-3A 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.
Lightweight & Compact Housing: Its aluminum alloy body offers an excellent strength-to-weight ratio, reducing overall system weight compared to cast iron pumps, while maintaining structural integrity.
High-Efficiency Gear Design: Precision-ground gears and optimized internal clearances minimize internal leakage, ensuring high volumetric efficiency and consistent performance.
Flexible Installation Options: Standardized mounting flanges (SAE and European patterns) and multiple port orientations make the HGP-3A highly adaptable to a wide range of equipment layouts.
The HGP-3A is designed for reliable medium-to-high pressure operation. Depending on the specific model and displacement, the series typically handles:
Continuous Pressure: Up to 210 bar (3,000 PSI).
Intermittent/Peak Pressure: Up to 250 bar (3,625 PSI).
This pressure rating makes it ideal for powering actuators and circuits in material handling, construction, and agricultural machinery.
Yes, the HGP-3A is a popular, cost-effective alternative to many common compact gear pumps. It is often used as a replacement for pumps from brands such as:
Parker/Commercial Intertech PGP Series
Rexroth AZPF/AZPN Series
Marzocchi GHP Series
To ensure a successful swap, verify the Mounting Flange, Shaft Type (splined or keyed), Port Orientation, and Displacement (cc/rev) to match your existing system.
To protect the gears, bearings, and internal components, the following is recommended:
Oil Type: Premium mineral-based hydraulic fluids with strong Anti-Wear (AW) 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 vital for long component life. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent abrasive particles from damaging the gear faces and bearings.
The HGP-3A is designed for a wide operating speed range to suit various power sources:
Minimum Speed: 500 rpm (to ensure proper lubrication and flow).
Rated Continuous Speed: 1,800 to 2,500 rpm.
Maximum Intermittent Speed: Up to 3,000 rpm (check specific model specifications for limits, especially at high pressures).
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.
HGP-3A 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.
