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A: The A2FO56 is a series of fixed displacement axial piston pumps with a swash plate design (specifically, a "bent-axis" design with a conical piston rotor assembly) intended for use in open circuit hydrostatic drives. They are suitable for both mobile and stationary appliions.
Q: What are the key features of the A2FO56 pump?
A: Key features include:
High Power Density: Provides substantial power output relative to its size
Compact Design and Small Dimensions: Saves space in equipment design
High Overall Efficiency: Contributes to energy savings
Robust Bearing Design: The drive shaft bearing is designed to meet the service life requirements of demanding appliions
One-Piece Piston with Piston Ring Seal: Contributes to reliable performance
Economic Design: Offers a cost-effective solution
Technical Specifiions & Models
Q: What are the key technical parameters for the A2FO56 series?
A: Primary specifiions for the A2FO56 include:
Geometric Displacement per Revolution: 56.1 cm³/rev
Rated Pressure: 35 MPa (350 bar)
Peak Pressure: 40 MPa (400 bar)
Speed Range: Approximately 500 to 3500 rpm (dependent on specific model and pressure)
Flow Rate: Proportional to drive speed and displacement; approximately 112 L/min at nominal speed (e.g., 2000 rpm) and Δp=350 bar
Mass: Approximately 18 kg
Q: How is the A2FO56 model number structured? Can you provide examples?
A: The model code contains information about size, shaft design, port configuration, and control options. Examples of specific models within the A2FO56 series include:
A2FO56/61L-PPB05
A2FO56/61R-PPB05-S
A2FO56/61R-NPB05
A2FO56/61L-VBB05
(Note: Components like /61L, /61R, -PPB05, -NPB05 indie specific design variations such as rotation direction, porting, and control features)
Maintenance & Servicing
Q: What routine maintenance does the A2FO56 pump require?
A: Proper maintenance is crucial for longevity and reliable operation. Key practices include:
Pre-Startup Check: Verify oil level in the tank before startup. Use the recommended grade of hydraulic fluid
Initial Run: After a shutdown of more than 4 hours, allow the pump to run without load for at least 5 minutes before applying pressure
Regular Monitoring: Consistently check operating parameters like pressure, speed, and, importantly, oil temperature during work. The optimal operating oil temperature is typically suggested to be between 35°C and 60°C. If a sudden temperature rise occurs, investigate the cause immediately
Inspection: Regularly check pipe joints and flange connections for tightness to prevent leaks and air ingress
Oil Cleanliness: Maintain the cleanliness of the hydraulic oil. The higher the oil cleanliness, the longer the service life of the pump. External contaminants must be prevented from entering the reservoir and the pump
Q: What should I do if the pump's flow rate is insufficient or performance drops?
A: Potential causes based on common issues include:
Low Drive Speed: Ensure the motor meets the pump's required rated speed
Leaks in the System: Check the system for and repair any leakage points
Aeration/Suction Problems: Inspect the suction line for air leaks. Ensure the oil level in the tank is not too low
Loose Pump Casing Bolts: Prolonged operation and vibration can loosen bolts, which may need tightening to specifiion
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
