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PGP511/PGM511
Green Hydraulic
PGP511/PGM511
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
Specifications
| Parameter | Specification |
| Type | Fixed‑displacement external gear pump (PGP511) / motor (PGM511) |
| Construction | 3‑piece high‑strength aluminum body |
| Bearing Design | Pressure‑balanced journal bushings (for high‑pressure, low‑noise operation) |
| Displacement Range | 6 to 33 cm³/rev (0.366 to 2.014 in⊃3;/rev) |
| Max Continuous Pressure | Up to 250 bar (3,625 psi) |
| Max Intermittent Pressure | Up to 275 bar (3,990 psi) |
| Max Speed (PGP Pump) | 4,000 rpm (at rated pressure) |
| Max Speed (PGM Motor) | 3,000 rpm (continuous) |
| Min Speed (PGM Motor) | 100 rpm (with adequate inlet pressure) |
| Direction of Rotation | Clockwise or counter‑clockwise (bi‑rotational options available) |
| Mounting Flange | Standard SAE “A” 2‑bolt (SAE J744) |
| Port Configurations | Side or rear suction/pressure ports (dual‑port capability) |
| Shaft Seal Options | Buna‑N, Viton™, or other material options for fluid compatibility |
| Fluid Viscosity Range | 10–1,000 cSt (recommended: 15–150 cSt for best efficiency) |
| Operating Temperature Range | -40 °C to +100 °C (-40 °F to +212 °F) (depending on seal material) |
| Volumetric Efficiency | >90% at rated pressure and speed |
| Mechanical Efficiency | >95% at rated conditions |
| Weight | 1.5–3.0 kg (3.3–6.6 lbs), depending on displacement and configuration |
| Applications | Mobile hydraulics, agriculture, construction, material handling, aerial lifts, industrial power units |
Applications
Applications
Factory&FAQ
PGP511/PGM511 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 Aluminum Housing: Unlike cast iron pumps, its aluminum frame delivers an excellent power-to-weight ratio while maintaining tight internal clearances for consistent efficiency under pressure.
Pressure-Balanced Bushing Performance: It uses advanced journal bushings that provide superior bearing surface area, offering greater resistance to thermal shock and fluid contamination than standard gear pumps with simple bearings.
Modular Versatility: Standard with multiple port and shaft options, the PGP511/PGM511 offers significantly more installation flexibility than basic fixed-port designs.
The PGP511/PGM511 is a compact high-pressure performer. Depending on the specific displacement, the series typically handles:
Continuous Pressure: Up to 3,625 PSI (250 bar).
Intermittent/Peak Pressure: Up to 4,000 PSI (275 bar).
This robust pressure rating makes the PGP511/PGM511 ideal for driving high-force lifting and power systems on professional-grade mobile and industrial equipment.
Yes, the PGP511/PGM511 is a high-quality alternative to other premium compact gear pumps. It is often used as a replacement or upgrade for:
Commercial Intertech/Hydro-Line P30/P50 Series
Metaris MH511 Series
Other SAE “A” mount aluminum gear pumps
To ensure a successful swap, verify the Mounting Flange (SAE A), Shaft Type (keyed or spline), 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 the bushing faces.
PGP511 Pump: 500 to 4,000 RPM (continuous).
PGM511 Motor: 100 to 3,000 RPM (continuous).
The recommended operating range depends on pressure, fluid viscosity, and inlet conditions.
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.
PGP511/PGM511 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.
