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Yuken Variable displacement piston pump

YUKEN variable displacement piston pumps are widely used in industrial and hydraulic systems, featuring low noise, high efficiency and reliable performance. The following are the main series, model examples and key specifications, covering core parameters such as displacement, operating pressure and shaft speed.

1. ARL1 Series Compact Variable Displacement Piston Pumps

Features: Small size, light weight, low noise, suitable for small flow applications .
Model
Geometric Displacement (cm³/rev)
Rated Operating Pressure (MPa)
Shaft Speed Range (r/min)
ARL1-6
6.2
16
600-1800
ARL1-8
8.0
16
600-1800
ARL1-12
12.0
16
600-1800
ARL1-16
16.3
16
600-1800

2. AR Series Variable Displacement Piston Pumps

Features: Compact aluminum body, high power-to-mass ratio, low noise, available in axial and side port types .
Model
Geometric Displacement (cm³/rev)
Rated Operating Pressure (MPa)
Maximum Intermittent Pressure (MPa)
Shaft Speed Range (r/min)
AR16-FR01B-20
15.8
16
21
600-1800
AR22-FR01C-22950
22.2
16
21
600-1800

3. A Series Variable Displacement Piston Pumps

Features: 10 types of control methods available, wide displacement range, high volumetric efficiency (>98% at 16MPa and 1800r/min), available as single, double or variable/fixed double pumps .
Model
Geometric Displacement (cm³/rev)
Rated Operating Pressure (MPa)
Maximum Intermittent Pressure (MPa)
Shaft Speed Range (r/min)
A10-FR01B-12
10.0
16
21
600-1800
A22-R-01-K-32
22.2
16
21
600-1800
A56-F-R-01-B-K-32
56.2
16
21
600-1800
A145-R01S-60
145.0
25
28
600-1800
A220-R-01-K-10
219.0
16
21
600-1800

4. A3H Series High-Pressure Variable Displacement Piston Pumps

Features: Simple and compact structure, high pressure resistance (35MPa), high volumetric efficiency, wide displacement range .
Model Series
Geometric Displacement Range (cm³/rev)
Rated Operating Pressure (MPa)
Shaft Speed Range (r/min)
A3H Series
16.3-180.7
35
600-1800

5. A3HG Series Variable Displacement Piston Pumps

Features: Compliant with SAE and ISO international standards, easy to connect with SAE/ISO standard driven pumps, high reliability inherited from A3H series, rated pressure 35MPa .

6. A7H Series High-Pressure Variable Displacement Piston Pumps

Features: High rated pressure (35MPa), maximum pressure 40MPa, large displacement, available for dual pump use .
Model
Geometric Displacement (cm³/rev)
Rated Operating Pressure (MPa)
Maximum Operating Pressure (MPa)
A7H-180
180.0
35
40
A7H-270
270.0
35
40

Notes

  • Design standards: “80” for European (Cetop, DIN, ISO), “90”/”950″ for North American (NAS, USAS, NFPA), no suffix for Japanese (JIS) .
  • The specifications above are for petroleum-based oils; customized pumps for special fluids (water-glycols, phosphate esters, etc.) have different parameters .
  • When operating at maximum intermittent pressure, the intermittent time shall not exceed 1/5 of one cycle or 6 seconds .
  • For more detailed model specifications or customized requirements, please consult YUKEN official or sales representative