PARKER PD Series Hydraulic Pumps
I. Product Overview
• Type: Axial piston variable hydraulic pumps for open-circuit applications, designed for medium-pressure industrial use.
• Applications: The PD series low-noise pumps are suitable for industrial applications such as construction equipment, agricultural machinery, and material handling systems.
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II. Key Features
1. High Efficiency and Reliability
• Compact overall structure with high power density.
• Utilizes elastic material seals without gaskets, minimizing external leakage.
• Long-life roller bearings with low friction and hydrostatically balanced swashplate saddle bearings ensure long-term stable operation.
2. Superior Control Performance
• Swashplate with bearing design for efficient and quiet control performance.
• Fast and stable compensator response ensures precise control of hydraulic systems.
• Multiple standard controller options with modular design for easy conversion, meeting diverse application requirements.
3. Convenient Installation and Maintenance
• Conforms to SAE and ISO standards for mounting flanges and ports, facilitating installation and maintenance.
• Multiple case drain ports suitable for various mounting orientations, such as horizontal or vertical axial installations.
• Optional maximum and minimum displacement limit adjustment functions for easy customization based on actual needs.
4. Energy Efficiency and Environmental Protection
• High operating efficiency with low power consumption, reducing heat generation and energy consumption.
• Adopts unique "ripple chamber" technology to minimize pressure pulsation, reduce noise, and enhance operational smoothness.
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III. Technical Parameters
• Operating Pressure: Continuous working pressure of 280 bar (4,060 psi), with a peak pressure of up to 42 MPa.
• Displacement Range: Offers multiple displacement options, including 18, 28, 45, 60, 75, 100, and 140 cm³/rev, allowing adjustment of displacement to control flow and pressure in hydraulic systems.
• Speed Range: 600 – 1,800 rpm, adapting to speed requirements in various working scenarios.
• Fluid Viscosity: Industry-leading low-viscosity capability, compatible with a wide range of hydraulic fluids.
• Fluid Temperature: Case drain temperature not exceeding 110°C (230°F), ensuring safe system operation.
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IV. Application Scenarios
• Industrial Equipment: Such as machine tools, plastic machinery, and metallurgical machinery, providing stable hydraulic power support.
• Construction Machinery: Such as excavators and loaders, meeting hydraulic demands under harsh working conditions.
• Agricultural Machinery: Such as tractors and harvesters, improving agricultural production efficiency.
• Material Handling Systems: Such as forklifts and cranes, enabling fast and accurate material handling.