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HGP22A
Green Hydraulic
HGP22A
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 HGP22A is a high-performance, fixed-displacement aluminum alloy tandem gear pump, widely adopted in compact and cost-sensitive hydraulic systems where reliability, light weight, and high-pressure capability are essential. Featuring a modular two-stage (hi-lo) design, the HGP22A is optimized for mobile machinery and general industrial hydraulics, offering a high power-to-weight ratio that makes it ideal for applications with limited installation space and strict performance requirements.
Rugged High-Strength Aluminum Alloy Construction
Specifications
| Parameter | Value |
| Type | Fixed-displacement tandem/2-stage gear pump |
| Body Material | High-strength extruded aluminum alloy |
| Gear Material | High-grade alloy steel |
| Seal Material | NBR (standard); Viton (optional for high temp) |
| Mounting Flange | Standard JIS 4-bolt square flange (80×80 mm) |
| Port Orientation | Side or rear (optional) |
| Rotation Direction | Clockwise (R) / Counterclockwise (L) (viewed from shaft end) |
| Weight | ~1.7 kg (standard 2-stage model) |
Applications
Applications
Wood & Forestry Equipment: The primary choice for wood splitters, log processors, and small sawmill systems, where the 2-stage design delivers fast low-pressure advance and high-pressure splitting force, while the aluminum construction keeps overall equipment weight low.
Small Press & Compaction Machinery: Widely used in workshop presses, waste compactors, and balers, offering the ideal combination of fast cycle times at low pressure and stable high-force operation for compression tasks.
Material Handling & Lifting: Ideal for truck tail-lifts, scissor lifts, and small pallet jacks, providing a lightweight, space-efficient power source that maintains consistent flow and pressure under heavy load conditions.
Agricultural & Farm Equipment: Frequently employed in farm implements such as spreaders, sprayer booms, and small tractor attachments, where the pump handles variable load shocks and fluid contamination common in outdoor environments.
Light Construction Machinery: Used in small concrete mixers, power trowels, and compact hydraulic power packs, offering a reliable, easy-to-maintain solution for general hydraulic actuation on portable equipment.
General Industrial Hydraulics: A cost-effective option for small machine tools, clamping systems, and custom power units, where its modular design and flexible mounting options adapt to a wide range of system layouts.
Factory&FAQ
HGP22A 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 Aluminum Construction: Unlike cast iron pumps that add significant weight, the HGP22A’s aluminum alloy housing offers a high power-to-weight ratio, making it ideal for mobile and portable equipment.
Modular 2-Stage (Hi-Lo) Design: The pump is inherently suited for tandem configurations, providing a built-in combination of large low-pressure flow and small high-pressure flow to optimize cycle times and reduce power consumption.
Cost-Effective and Versatile: As a widely adopted standard, the HGP22A offers excellent availability and compatibility with a broad range of system layouts, with flexible mounting and port options.
Continuous Rated Pressure: Up to 3,000 PSI (210 bar).
Intermittent/Peak Pressure: Up to 3,500 PSI (250 bar).
This pressure rating makes the HGP22A ideal for powering splitters, presses, and compact hydraulic power units.
Marzocchi 1HL / 2HL series pumps.
Other JIS-standard aluminum tandem pumps.
To ensure a successful swap, verify the Mounting Flange, Port Orientation, Shaft Type, and Displacement to match your existing system.
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).
Filtration: Cleanliness is vital for pump life. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent abrasive particles from damaging the gear faces and wear plates.
Max Continuous Speed: Up to 3,500 RPM.
Max Intermittent Speed: Up to 4,000 RPM.
Operating within these ranges ensures optimal flow output and minimizes wear on internal components.
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.
HGP22A 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.
