1AG
Green Hydraulic
1AG
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
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Product Description
The 1AG series is a high-performance, fixed-displacement external gear pump engineered for compact hydraulic systems that demand maximum efficiency and reliable high-pressure output. Featuring a lightweight yet rugged three-piece aluminum alloy construction, the 1AG is specifically designed to deliver an excellent power-to-weight ratio, making it an ideal choice for direct mounting to truck Power Take-Offs (PTOs) and mobile equipment where space is limited and performance is critical.
Rugged Three-Piece Aluminum Alloy Construction:
The 1AG is built with high-strength, corrosion-resistant aluminum alloy bodies and covers, offering an optimal balance of structural rigidity and light weight compared to cast iron alternatives. This robust construction minimizes internal deflection under high-pressure duty cycles, ensuring stable performance and extended service life in demanding environments.
Specifications

| Parameter | Specification |
| Type | External, fixed-displacement gear pump |
| Construction | 3-piece aluminum alloy housing with high-strength alloy steel gears |
| Displacement Range | 3.0–35 cc/rev (0.18–2.14 cu.in/rev) |
| Continuous Pressure | 210 bar (3,000 psi) |
| Intermittent Pressure | 250 bar (3,600 psi) |
| Speed Range | 600–4,000 rpm |
| Max Flow @ 1500 rpm | 4.5–52.5 L/min (1.19–13.87 gpm) |
| Mounting Flange | SAE AA 2-bolt standard |
| Port Configurations | Side or rear ports (dual-port design) |
| Shaft Types | Keyed, splined, or custom profiles |
| Rotation | Clockwise (CW), Counterclockwise (CCW), or bi-rotational |
| Seal Options | Buna-N (standard), Viton (high-temperature) |
| Operating Temp Range | -20°C to +80°C (-4°F to +176°F) |
| Fluid Viscosity | 10–100 cSt (recommended 20–30 cSt at operating temp) |
| Filtration Requirement | ISO 18/15 or better (25 μm absolute filter) |
| Weight | 1.0–1.8 kg (2.2–4.0 lbs), depending on displacement |

Applications
Applications
Utility & Service Vehicles: A primary choice for light-duty truck-mounted cranes, bucket trucks, and aerial lifts, where the compact 1AG frame integrates easily with Power Take-Off (PTO) units to deliver dependable lifting and positioning power.
Snow & Ice Control: Ideal for small salt spreaders and lightweight plow systems, where the robust construction and bushing design ensure long-term durability against harsh, corrosive winter environments and frequent use cycles.
Commercial Refuse & Recycling: Widely used in small-frame waste collectors and bin lifters that require consistent high-cycle, high-pressure performance for compacting and unloading operations.
Small Material Handling: Perfect for truck tail-lifts, hydraulic ramp systems, and light-duty pallet jacks, offering a space-efficient, durable power source that maintains high efficiency under heavy load conditions.
Specialized Agricultural Equipment: Commonly used in seeders, fertilizer spreaders, and small implement steering systems, where the 1AG reliably handles variable load shocks and fluid contamination common in outdoor field environments.
Compact Industrial Hydraulics: Suited for small presses, conveyor drives, and auxiliary power units (APUs) in mobile machinery, where its small footprint and high efficiency make it a versatile choice for tight-space installations.
Factory&FAQ

1AG 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 High-Strength Housing: Unlike heavy cast iron pumps, the 1AG’s aluminum alloy body offers a superior power-to-weight ratio while maintaining tight internal clearances under high pressure, reducing overall vehicle weight.
Pressure-Balanced Bushing Design: It uses advanced pressure-compensated bushings instead of traditional bearings, providing better resistance to fluid contamination and thermal shock than many basic gear pump designs.
Flexible Porting Options: Standard with both side and rear ports, the 1AG offers greater installation flexibility in cramped chassis environments than fixed-port pumps.
The 1AG is optimized for compact high-pressure applications. Depending on displacement, the typical ratings are:
Continuous Pressure: Up to 3,000 PSI (210 bar).
Intermittent/Peak Pressure: Up to 3,600 PSI (250 bar).
This robust rating makes it ideal for light-duty lifting, compaction, and material handling systems on utility vehicles.
Yes, the 1AG is a cost-effective, high-quality alternative to many standard compact gear pumps. It is often used as a replacement or upgrade for:
Parker/Commercial Intertech: P1A/P2A Series
Metaris: MH100/MH200 Series
Permco: P100/P200 Series
To ensure a successful swap, verify the Mounting Flange (SAE AA), Shaft Type (keyed or splined), and Displacement (cc/rev) to match your existing system.
To protect the precision bushings and hardened steel gears, 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 bushing lubrication. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent abrasive particles from damaging internal components.
The standard operating speed range is 600–4,000 RPM, with optimal efficiency between 1,500–3,000 RPM.
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.
1AG 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.