yuken piston pump a37-f-r-01-b-k-32
I. Model Code Interpretation 🔍
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Code Segment
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Meaning
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Detailed Description
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A37
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Displacement Code
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The geometric displacement is 36.9 cm³/rev (approximately 2.25 in³/rev), which belongs to the A-series medium-sized variable piston pump.
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F
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Mounting Method
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Flange mounting, suitable for most standard hydraulic system layouts.
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R
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Rotation Direction
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Clockwise rotation (viewed from the drive shaft end), matching the standard motor rotation direction.
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01
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Control Type
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Pressure compensation control, which can automatically adjust the displacement according to the system pressure to achieve energy-saving operation.
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B
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Pressure Grade
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Low pressure grade, pressure adjustment range 1.2~7 MPa (approximately 170~1020 PSI), rated pressure 16 MPa (approximately 2320 PSI).
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K
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Shaft Extension Type
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Parallel key shaft extension, easy to connect with couplings or motors.
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32
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Design Number
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Standard design version identifier, representing specific internal structure and configuration.
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II. Core Technical Parameters ⚙️
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Parameter Category
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Value
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Unit
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Geometric Displacement
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36.9
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cm³/rev
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Displacement Adjustment Range
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10~36.9
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cm³/rev
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Maximum Flow Rate
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17.53
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GPM (approximately 66.3 L/min, at 1800 rpm)
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Rated Pressure
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16
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MPa (2320 PSI)
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Maximum Working Pressure
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21
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MPa (3050 PSI)
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Pressure Adjustment Range
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1.2~7
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MPa (170~1020 PSI)
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Rotation Direction
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Clockwise (viewed from the shaft end)
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–
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Mounting Method
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Flange type
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–
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Shaft Extension Type
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Parallel key
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–
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Efficiency
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Volumetric efficiency ≥ 95%, total efficiency ≥ 85%
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% (at 1800 rpm)
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III. Performance Features ✨
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Pressure Compensation Control: When the system pressure reaches the set value, the displacement is automatically reduced to lower power consumption and achieve energy-saving operation.
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High Efficiency and Stability: Adopting a swash plate design, it has high mechanical efficiency and volumetric efficiency, stable operation, and low noise.
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Compact Structure: The A-series pump is small in size and light in weight, easy to install and maintain.
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High Reliability: Imported from Japan with precision manufacturing technology, it has a long service life and is suitable for continuous working conditions.
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Easy Maintenance: Modular design, easy replacement of wearing parts, and low maintenance cost.
IV. Application Scenarios 🎯
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Industrial machinery such as hydraulic presses, injection molding machines, and die-casting machines.
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Mobile equipment such as construction machinery, agricultural machinery, and mining machinery.
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Hydraulic system test benches and marine hydraulic systems.
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Other hydraulic systems that require stable pressure and energy-saving operation.
V. Installation and Usage Points 📌
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Installation Direction: Ensure that the rotation direction is consistent with the motor (clockwise) to avoid pump body damage due to reverse rotation.
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Suction Condition: The suction port pressure should be maintained at 0.05~0.3 MPa to avoid cavitation.
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Oil Requirements: Use ISO VG32~68 hydraulic oil with a cleanliness level of NAS 9 or above.
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Maintenance Cycle: Replace the filter element after the first 500 hours of operation, and replace the hydraulic oil and filter element every 2000 hours thereafter.
VI. Common Problems and Solutions ❓
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Problem
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Possible Causes
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Solutions
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Unstable Pressure
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Worn pressure compensation valve, oil contamination
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Clean or replace the pressure compensation valve, and replace the hydraulic oil and filter element.
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Insufficient Flow
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Clogged or leaking suction pipe, stuck variable mechanism
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Check the suction pipe, eliminate leaks, and clean the variable mechanism.
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Excessive Noise
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Insufficient oil suction, worn bearings, misaligned coupling
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Improve oil suction conditions, replace bearings, and realign the coupling.
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For specific details, please refer to the official Yuken product manual and technical specifications.
Do you need me to add a comparison of the key differences (pressure grade, application scenarios, price range) between this model and A37-F-R-01-C-K-32, A37-F-R-01-H-K-32?
