Yuken A37-F-R-01-H-K-32 Variable Piston Pump
Detailed Explanation of Yuken A37-F-R-01-H-K-32 Variable Piston Pump
Yuken A37-F-R-01-H-K-32 is a Series A variable piston pump produced by Yuken Corporation of Japan. It adopts a swash plate design and is widely used in hydraulic systems to provide a high-pressure power source. The following is a detailed explanation:
I. Full Interpretation of Model Code
|
Code Segment
|
Meaning
|
Description
|
|
A37
|
Displacement Code
|
Geometric displacement is 36.9 cm³/rev (approximately 37cc/rev)
|
|
F
|
Mounting Method
|
Flange Mounting; the other common type is L = Foot Mounting
|
|
R
|
Rotation Direction
|
Clockwise rotation when viewed from the pump shaft end (Right-hand rotation); the other type is L = Counterclockwise
|
|
01
|
Control Method
|
Pressure Compensator control type, which automatically adjusts flow according to system pressure
|
|
H
|
Pressure Level
|
High-pressure type, rated pressure 21 MPa (210 bar), maximum pressure 28 MPa (280 bar)
|
|
K
|
Shaft End Type
|
Keyed Shaft, standard configuration
|
|
32
|
Series Code
|
Series A standard series, representing a specific design version
|
II. Core Technical Parameters
|
Parameter Item
|
Value
|
Unit
|
|
Geometric Displacement
|
36.9
|
cm³/rev
|
|
Displacement Adjustment Range
|
10~36.9
|
cm³/rev
|
|
Rated Working Pressure
|
21
|
MPa (210 bar)
|
|
Maximum Working Pressure
|
28
|
MPa (280 bar)
|
|
Maximum Intermittent Pressure
|
32.3
|
MPa (323 bar)
|
|
Speed Range
|
600~1800
|
r/min
|
|
Recommended Oil Viscosity
|
20~400
|
mm²/s
|
|
Oil Cleanliness Requirement
|
Within NAS1638-10 Grade
|
–
|
|
Working Oil Temperature Range
|
-10~80
|
°C
|
III. Product Features and Advantages
-
Efficient Swash Plate Design: High volumetric efficiency, excellent sealing performance, and reduced internal leakage
-
Low Energy Consumption Design: Small power loss, reduced oil temperature rise, and a smaller oil tank can be selected
-
Intelligent Pressure Compensation: The 01-type control method automatically adjusts flow to maintain stable system pressure and save energy
-
High Reliability: Cast iron pump body, sturdy and durable, suitable for harsh working conditions
-
Flexible Installation: Flange mounting, compatible with various power units
-
Easy Maintenance: Modular design, convenient replacement of wearing parts
IV. Application Scenarios
-
Injection Molding Machinery
-
Die Casting Machinery
-
Hydraulic Machine Tools
-
Heavy Construction Machinery
-
Metallurgical Equipment
-
Marine Hydraulic Systems
-
Other industrial equipment requiring a high-pressure and stable hydraulic source
V. Usage Notes
-
Pressure Setting: The full cut-off pressure shall not exceed the maximum intermittent pressure (32.3 MPa)
-
Oil Selection: Use hydraulic oil within the recommended viscosity range to avoid oil contamination
-
Installation Requirements: Ensure firm installation, the coaxiality of the coupling meets the standard, and avoid axial and radial loads
-
Pre-start Preparation: Fill the pump with hydraulic oil and start it after venting
-
Maintenance Cycle: Regularly check oil cleanliness, filter status and seals, and replace wearing parts according to the manual
VI. Explanation of Control Method (01-type Pressure Compensation)
When the system pressure is lower than the set value, the pump outputs the maximum flow; when the system pressure reaches the set value, the pump automatically reduces the flow to the minimum flow required to maintain the pressure, effectively reducing power consumption and oil temperature rise. The pressure adjustment range is usually 1.2~21 MPa, which can be adjusted through the adjusting screw on the pump body.
Would you like me to add a comparison of the key differences between this model and other common models in the A37 series (such as A37-F-R-01-B-K-32, A37-F-R-01-C-K-32), as well as the corresponding spare parts list and regular maintenance cycle recommendations?
