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PGM511
Green Hydraulic
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
The Parker PGM511 is a high-performance, fixed-displacement external gear motor/pump unit engineered for compact mobile and industrial hydraulic systems requiring reliable bi-directional power delivery and robust performance. Built on Parker’s proven gear technology, the PGM511 is specifically designed to offer high efficiency, durability, and installation flexibility, making it an ideal choice for fan drives, material handling equipment, and agricultural machinery where space and reliability are critical.
Lightweight High-Strength Aluminum Construction
Specifications
| Parameter | Specification |
| Type | Fixed-displacement external gear motor / reversible pump |
| Displacement Range | 6.0–31.0 cm³/rev (0.37–1.89 in⊃3;/rev) |
| Continuous Pressure | Up to 250–275 bar (3,625–4,000 psi) |
| Peak Pressure | Up to 300 bar (4,350 psi) |
| Operating Speed Range | 500–4,000 rpm (typical: 1,000–3,500 rpm continuous) |
| Rotation | Bi-directional (CW / CCW) |
| Construction | 3-piece aluminum housing, pressure-balanced wear plates, journal bushings |
| Mounting Flange | Standard SAE "A" / "B" 2/4-bolt options |
| Shaft Options | Splined or keyed SAE standard shafts |
| Porting | Side or rear port configurations |
| Fluid Viscosity Range | 20–30 cSt optimal (VG32–VG68) |
| Filtration Requirement | ISO 4406 18/16/13 or better |
| Temperature Range | -20°C to +80°C (-4°F to +176°F) |
Applications
Applications
Mobile Fan Drives: The primary choice for engine cooling fan systems in construction machinery, agricultural tractors, and commercial vehicles, where its reversible rotation and high-speed capability enable precise temperature control and energy-efficient operation.
Agricultural Machinery: Widely used in fertilizer spreaders, seed drills, and harvester auxiliary systems, withstanding fluid contamination, variable load shocks, and the vibration common in outdoor field environments.
Material Handling Equipment: Ideal for forklifts, aerial work platforms, and pallet jacks, delivering consistent torque and smooth flow to power lifting, tilting, and positioning functions while maintaining efficiency under heavy-duty cycles.
Construction & Utility Vehicles: Deployed in compact excavators, utility trucks, and aerial lifts, where its SAE-standard mounting options and compact footprint integrate seamlessly with limited-space chassis layouts.
Industrial Hydraulic Systems: Suitable for small power units, conveyor drives, and auxiliary power packs, offering reliable bi-directional operation for both pump and motor functions in stationary industrial applications.
Factory&FAQ
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.
Bi-Directional Operation: Unlike standard single-direction gear pumps, the PGM511 supports reversible rotation (CW/CCW), functioning as both a pump and motor to simplify circuit design and eliminate the need for separate components.
Lightweight High-Strength Design: Precision-machined aluminum housing delivers a high power-to-weight ratio, reducing overall system weight while maintaining structural rigidity under high pressure.
Pressure-Balanced Bushing Technology: Advanced journal bushings with pressure compensation reduce wear, improve tolerance to fluid contamination, and maintain high volumetric efficiency across a wide operating range.
Flexible Mounting Options: Supports standard SAE "A" and "B" flanges with splined or keyed shafts, offering greater installation versatility than fixed-port designs.
Continuous Pressure: Up to 275 bar (4,000 PSI).
Intermittent/Peak Pressure: Up to 300 bar (4,350 PSI).
This robust pressure rating makes it suitable for powering high-force actuators and fan drive systems in demanding mobile environments.
Casappa PLM Series
Bondioli & Pavesi M4 Series
Sauer Danfoss SNP/NNP Series
To ensure a successful swap, verify the Mounting Flange (SAE A/B), Shaft Type (splined/keyed), Displacement (cc/rev), and Rotation Direction to match your existing system.
Oil Type: Premium mineral-based hydraulic fluids with Anti-Wear (AW) additives; biodegradable fluids may be used with compatibility verification.
Viscosity: ISO VG32 to VG68, with an optimal operating range of 20–30 cSt at 40°C. Cold starts down to 430 cSt are supported.
Filtration: ISO 4406 cleanliness code of 18/16/13 or better to prevent abrasive particle damage to the bushing faces.
Minimum Speed: 500 RPM (to maintain adequate oil film on bushings).
Maximum Continuous Speed: 3,000–4,000 RPM (depending on displacement and pressure).
For fan drive applications, speeds up to 4,000 RPM are common, while high-torque motor applications typically operate at 1,000–2,500 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.
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.
