Technical Parameters of YUKEN Hydraulic Pump A3H145-FR01KK-10

1. Basic Information

• Model: A3H145-FR01KK-10
• Brand: YUKEN
• Pump Type: Variable Displacement Piston Pump
• Structure: Single plunger piston pump with integrated pressure compensation control mechanism, compact structure, high pressure resistance and stable operation

2. Displacement Parameters

• Nominal Displacement: 145 cm³/rev (cubic centimeters per revolution)
• Displacement Tolerance: ±5% (standard for YUKEN piston pump series)
• Displacement Adjustment: Stepless variable adjustment, adjustable within the range of 0 to nominal displacement

3. Pressure Parameters

• Rated Working Pressure: 28.0 MPa (4060 psi)
• Maximum Working Pressure: 31.5 MPa (4565 psi) (intermittent operation, no more than 10% of working time)
• Minimum Suction Pressure: -0.02 MPa (absolute pressure, no cavitation to avoid pump damage)
• Pressure Control Range: 2.5~28.0 MPa (matches the rated working pressure)

4. Speed Parameters

• Rated Speed: 1500 r/min (revolutions per minute)
• Maximum Speed: 1800 r/min (continuous operation)
• Minimum Speed: 600 r/min (to ensure stable operation and sufficient suction)

5. Flow Parameters (at Rated Speed 1500 r/min)

• Nominal Flow: Approx. 217.5 L/min (liters per minute) (calculated by displacement × speed)
• Volumetric Efficiency: ≥97% (at 28 MPa, 1800 r/min)
• Total Efficiency: ≥88% (at 28 MPa, 1800 r/min)

6. Model Code Explanation

• A3H145: Series code, indicating YUKEN A3H-series variable displacement piston pump with nominal displacement of 145 cm³/rev[2][11]
• F: Mounting type, flange mounting
• R: Rotation direction, clockwise (viewed from the shaft end)
• 01: Control mode, pressure compensation control type (standard configuration)
• KK: Design feature, double anti-wear structure with reinforced seal
• 10: Design number (standard design for A3H145 series)

7. Fluid Requirements

• Recommended Fluid: Petroleum-based hydraulic oil (ISO VG 32, 46, 68)
• Fluid Temperature Range: -20°C to +80°C (operating); -10°C to +60°C (optimal)
• Fluid Cleanliness: NAS 7 or higher (ISO 17/14) (higher requirement due to high-pressure design)
• Special Seals: Required for phosphate ester type fluids (consult YUKEN for details)

8. Installation & Dimensions

• Mounting Type: Flange mounting (conforms to SAE 4-bolt split flange standard)
• Suction/Discharge Port: Single suction port and single discharge port (standard interface size, matching high-pressure working conditions)
• Shaft Extension: Flat key type (standard shaft extension specification, reinforced for high-torque transmission)
• Approximate Weight: 125 kg (reference value for A3H145 series piston pumps)

9. Performance Features

• Low Noise: Adopting low-noise structural design and precision machining, noise level ≤62 dB(A), suitable for high-precision working environments
• High Efficiency: Advanced plunger and cylinder block design, combined with high-precision manufacturing process, ensuring high volumetric and total efficiency, energy-saving and low heat generation
• Wear Resistance: High-strength plunger, cylinder block and valve plate, with anti-wear coating, good wear resistance and long service life
• Easy Maintenance: Simple structure, easy disassembly and assembly for daily maintenance and parts replacement; standardized parts for convenient replacement

10. Application Scope

Widely used in heavy-duty industrial fields such as large hydraulic presses, construction machinery, metallurgical machinery, mining machinery, and plastic machinery (large injection molding machines), which require high pressure, large flow and stable variable control.

Notes

• Anti-clockwise rotation pump is available; consult YUKEN for details.
• When setting the pressure, ensure that the full cut-off pressure does not exceed the maximum allowable working pressure to avoid pump damage.
• When the pump is used above the rated value, the working conditions should be restricted (e.g., the running time at maximum pressure should not exceed 5 seconds per cycle).
• For detailed dimensional drawings and more precise parameters, refer to the official YUKEN product manual.