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GP1
Green Hydraulic
GP1
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 GP1 is a high-performance, fixed-displacement external gear pump specifically engineered for truck-mounted hydraulic systems and medium-duty mobile applications. Featuring a rugged two-piece cast iron construction, the GP1 provides a high power-to-weight ratio and exceptional structural rigidity. It is the preferred choice for commercial vehicle hydraulics, such as aerial lifts, snow and ice control, and material handling equipment, where space is at a premium and reliable high-pressure performance is required.
| Size | Displacement | Maximum Continuous Pressure | Maximum Peak Pressure | Max. Speed |
| - | cm³/rev (cc/rev) | bar (psi) | bar (psi) | rpm |
| GP1-023 | 23 | 250 (3625) | 300 (4350) | 2000 |
| GP1-029 | 29 | 250 (3625) | 300 (4350) | 2000 |
| GP1-041 | 41 | 220 (3190) | 270 (3915) | 2000 |
| GP1-046 | 46 | 210 (3045) | 260 (3770) | 2000 |
| GP1-060 | 60 | 250 (3625) | 300 (4350) | 1800 |
| GP1-080 | 80 | 210 (3045) | 260 (3770) | 1600 |
| GP1-100 | 100 | 185 (2680) | 225 (3260) | 1600 |
Applications
Aerial Lifts & Work Platforms: A primary choice for truck-mounted bucket trucks and cherry pickers, providing smooth and precise hydraulic control for elevated operations while fitting into the tight spaces around the truck PTO.
Snow & Ice Control Equipment: Optimized for salt spreaders and snow plow lift systems, where the rugged cast iron construction resists the harsh external environment and manages the high-frequency duty cycles of winter service.
Medium-Duty Material Handling: Widely used in truck-mounted cranes and hook loaders that require consistent high-pressure lifting power and high volumetric efficiency to ensure rapid load cycles.
Specialized Utility Vehicles: Ideal for recovery trucks, small garbage compactors, and street sweepers, offering a durable solution that can be easily integrated into complex chassis layouts thanks to its dual-porting design.
Transport & Distribution: Frequently employed in truck tail-lifts and hydraulic ramp systems for car carriers, ensuring reliable operation and low noise levels during loading and unloading in urban environments.
GP1 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.
Two-Piece Cast Iron Housing: The high-strength cast iron body offers significantly more structural rigidity than aluminum, minimizing internal deflection and "body stretching" under high pressure to ensure long-term volumetric efficiency.
Compact High-Power Density: Designed specifically for PTO (Power Take-Off) mounting, it delivers higher pressure and flow from a smaller footprint than many equivalent aluminum Group 2 or Group 3 pumps.
Installation Versatility: Its unique design features both side and rear ports as standard, allowing for much easier plumbing in the cramped spaces typical of truck chassis.
Continuous Pressure: Up to 250 bar (3,625 PSI).
Intermittent/Peak Pressure: Up to 300 bar (4,350 PSI).
This capability allows it to operate heavy-duty lifting cylinders and high-torque motors that usually require much larger hydraulic components.
Mounting Flange: Typically DIN 5462 (4-bolt truck) or SAE standards.
Shaft Type: Standard 8-tooth splines (DIN 5462) are common for truck PTOs.
Rotation: Most GP1 models are bi-rotational, making them easier to stock and install regardless of the PTO’s rotation direction.
Oil Type: High-quality mineral-based hydraulic oils with Anti-Wear (AW) additives.
Viscosity: A standard range of ISO VG32 to VG46. The pump operates optimally between 20 and 50 cSt, but can handle cold starts up to 1500 cSt.
Filtration: Cleanliness is critical for high-pressure cast iron pumps. Parker recommends a minimum filtration level of ISO 4406 20/18/13 to prevent premature wear of the internal pressure zones.
The GP1 is optimized for the speed ranges of modern truck engines and electric motors, typically operating between 400 RPM and 2,000 RPM. Its ability to maintain high efficiency at lower speeds makes it ideal for idling truck engines, while its robust construction handles the higher RPMs encountered during transport or high-speed operation.
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.
GP1 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.
