I. Product Overview
The A10VSO140DFR1/32R-VPB22U99 is a high-performance axial piston variable displacement pump with a swashplate design, manufactured by Bosch Rexroth. It belongs to the A10VSO series and is specifically designed for open hydraulic circuits. This pump is widely used in industrial machinery, construction machinery, marine and offshore engineering, and other fields, renowned for its high efficiency, stability, reliability, and energy-saving features.
II. Technical Specifications and Parameters
1. Displacement and Flow Rate
• Displacement: 140 cm³/rev
• Maximum flow rate: 252 L/min (at a rated speed of 1800 rpm)
• The flow rate is proportional to the drive speed and displacement, enabling infinitely variable displacement by adjusting the swashplate angle.
2. Pressure Parameters
• Rated pressure: 280 bar
• Peak pressure: 350 bar
• Suction port pressure range: 0.8–10 bar
• Case drain port pressure: < 2 bar
3. Speed Range
• Rated speed: 1800 rpm
• Maximum speed: 2200 rpm
4. Control Methods
• Supports various control methods, including pressure compensation, load sensing, and power limiting, to meet different operating conditions.
• Short control response time ensures rapid and stable system operation.
5. Mounting and Connections
• Mounting flange complies with ISO standards, and flange connections conform to SAE metric threads.
• Universal through-drive design allows for multi-circuit systems and supports combined pump installations.
6. Weight and Dimensions
• Pump weight: Approximately 73 kg
• Direction of rotation: Clockwise (R)
• Port positions: Side ports
7. Temperature Range
• Operating temperature: -25°C to +115°C
• Suitable medium temperature: 30°C to 90°C
8. Medium Types
• Suitable media: Hydraulic oils (mineral oils, environmentally friendly hydraulic oils, HF-fluids, etc.)
III. Product Features
1. High Efficiency and Energy Saving
• The flow rate is proportional to the drive speed and displacement, enabling infinitely variable displacement by adjusting the swashplate angle, reducing energy loss.
• Low noise design (< 79 dBA) reduces noise pollution during operation.
2. Stable and Reliable
• The swashplate axial piston design ensures long-term stable operation.
• Excellent suction performance allows for continuous operation at pressures up to 280 bar and peak pressures of 350 bar.
3. Easy Maintenance
• The pump features a reasonable structural design, making maintenance simple and reducing user maintenance costs and time.
• The case drain port design facilitates system oil drainage and inspection.
4. High Resistance to Cavitation and Suction Pressure
• Hydrostatic unloading of the rocker bearing reduces wear and extends service life.
• High resistance to cavitation design accommodates sudden drops in case pressure peaks.
5. High Versatility
• The universal through-drive design supports multi-pump combined installations, meeting the needs of complex hydraulic systems.
• Multiple control methods are available to adapt to different industrial scenarios.
IV. Application Areas
1. Industrial Machinery
• Used in machine tools, production lines, and other equipment to provide stable power support, ensuring continuous and stable operation of production lines.
2. Construction Machinery
• Widely applied in construction machinery such as excavators, loaders, and concrete mixer trucks, providing stable power output.
3. Marine and Offshore Engineering
• Provides power support for ships and offshore engineering equipment, ensuring the safety and smooth progress of projects.
4. Environmental Protection Equipment
• Applied in solid waste treatment, wastewater treatment, and other environmental protection projects, promoting resource recycling.
5. Metallurgy and Forging
• Used in hydraulic systems in the metallurgy and forging industries, particularly suitable for high-power hydraulic transmission systems.
V. Maintenance and Upkeep Recommendations
1. Regularly Check Hydraulic Oil
• Ensure the cleanliness and oil level of the hydraulic oil are within the normal range. Replace the hydraulic oil regularly (recommended every 1000–3000 working hours or every six months).
2. Inspect Filters
• Regularly inspect and replace filters to prevent impurities from entering the pump and causing wear or malfunctions.
3. Check Seals
• Regularly inspect the pump's seals, such as shaft seals and end cover seals, to ensure they are intact and prevent leaks.
4. Keep Pump Body Clean
• Regularly clean the pump body surface to prevent the accumulation of dust and dirt, which can affect heat dissipation and aesthetics.
5. Regularly Check Fasteners
• Regularly inspect the pump's fasteners, such as bolts and nuts, to ensure they are securely fastened and prevent loosening or detachment.
