ARL1 Series Yuken Piston Pumps
The Yuken ARL1 Series is a line of ultra-compact, lightweight and ultra-low-noise variable displacement piston pumps developed based on Yuken’s proven “A Series” and “AR Series” technology. Specifically designed for small displacement, low-pressure hydraulic systems, these swash plate type pumps are the smallest and lightest in Yuken’s piston pump lineup, offering exceptional quiet operation and reliability for precision applications.
Core Specifications
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Parameter
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Value
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Rated Pressure
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1.2-7 MPa (12-70 kgf/cm²), single adjustment range
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Maximum Pressure
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7 MPa (70 kgf/cm²)
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Displacement Options
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ARL1-6: 6.2 cm³/rev ARL1-8: 8.2 cm³rev ARL1-12: 12.3 cm³rev ARL1-16: 16.3 cm³rev
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Pump Type
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Swash plate type variable displacement piston pump (pressure compensator)
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Fluid Compatibility
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Petroleum-based anti-wear hydraulic oils or R&O type oils (ISO VG 32 or 46)
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Mounting
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Flange mounting (standard), with axial port (10) or side port (20) options
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Key Features
1. Ultra-Compact & Ultra-Lightweight Design
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40% smaller in volume and 44% lighter in weight compared to AR Series, making it Yuken’s smallest piston pump lineup
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Aluminum alloy body ensures exceptional power-to-mass ratio for space-critical applications
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Ideal for miniaturized hydraulic systems where installation space is extremely limited
2. Ultra-Low Noise Operation
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Exceptionally quiet operation at just 55 dB(A) at full cut-off (7 MPa, 1500 rpm, 1m distance) for ARL1-16 model
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Optimized internal structure and precision manufacturing minimize noise generation, ideal for noise-sensitive environments
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Advanced noise reduction technology inherited from Yuken’s A Series platform
3. Pressure Compensator Control
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Standard pressure compensator control (01 type) with single adjustment range (1.2-7 MPa)
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Automatic flow adjustment based on system pressure demand, ensuring energy-efficient operation
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Dedicated pressure adjustment screw for quick and precise setting of maximum system pressure
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Simplified control mechanism enhances reliability and reduces maintenance requirements
4. High Efficiency & Reliability
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Inherits the proven reliability of Yuken’s “A Series” platform, with stable performance in long-term operation
4. High Reliability & Efficiency
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Inherits proven reliability of Yuken’s A Series/AR Series platform with thousands of field applications
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High volumetric efficiency with minimal internal leakage, ensuring stable performance
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Precision-machined components reduce wear and extend service life
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Optimized swash plate design minimizes energy loss and heat generation
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Optimized internal structure minimizes energy loss and heat generation, reducing cooling system burden
5. Easy Installation & Maintenance
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Standard flange mounting and standardized interfaces facilitate quick installation and replacement
5. Simplified Installation & Maintenance
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Standard flange mounting and standardized interfaces for quick installation and replacement
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Available in axial (10) or side (20) port positions to match diverse pipeline layouts
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Easily accessible pressure adjustment screw and maintenance points reduce downtime
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Simplified internal design with fewer components enhances maintainability
Model Nomenclature (Example: AR16-FR01C-22)
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Meaning
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AR
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Series designation (Compact, low-noise variable displacement piston pump)
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16
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Displacement (max 15.8 cm³/rev)
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F
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Mounting type (Flange mounting)
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R
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Rotation direction (Clockwise, viewed from shaft end)
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01
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Control type (Standard pressure compensator type)
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C
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Pressure adjustment range (2.0-16 MPa)
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22
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Port position (Axial ports)
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Typical Applications
The AR Series is ideal for medium and high-pressure hydraulic systems requiring compact size, low noise and reliable performance:
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Industrial machinery (injection molding machines, die-casting machines, hydraulic shears)
The ARL1 Series is ideal for small displacement, low-pressure hydraulic systems requiring ultra-compact size, ultra-low noise and reliable performance:
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Medical equipment (diagnostic machines, surgical devices, patient lifts)
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Laboratory instruments requiring precise fluid control
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Semiconductor manufacturing equipment (wafer handling systems)
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Textile machinery (precision winding, tension control systems)
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Small industrial robots and automation systems
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Office automation equipment (large format printers, binding machines)
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Food processing machinery (precision filling, packaging systems)
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Audio-visual equipment requiring silent operation
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Lightweight mobile equipment (electric wheelchairs, small aerial platforms)
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Environmental protection equipment (sewage treatment, garbage compression systems)
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Metallurgical equipment (small rolling mills, steel processing machinery)
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Lightweight mobile hydraulic systems
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Indoor hydraulic equipment requiring low noise operation
Operational Advantages
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Energy Efficiency: Variable displacement design adjusts output flow to match load demand, effectively reducing power consumption and operating costs
Operational Advantages
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Space Optimization: Ultra-compact design allows integration into the smallest hydraulic systems, enabling miniaturization of overall equipment
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Silent Operation: Industry-leading low noise levels (55 dB(A)) create comfortable working environments and meet strict noise regulations
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Energy Efficiency: Pressure compensator control automatically adjusts flow to match load demand, minimizing power consumption
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Weight Reduction: 44% lighter than AR Series reduces overall system weight, ideal for mobile and portable equipment
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High Precision: Stable flow control and pressure regulation for applications requiring precise motion control
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Cost Effective: Simplified design reduces maintenance costs while maintaining high reliability
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Easy Adjustment: Dedicated pressure and flow adjustment screws allow quick parameter setting to meet system requirements
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Strong Adaptability: Multiple port positions and control options, compatible with various hydraulic system architectures
Important Considerations
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Use recommended hydraulic oils (ISO VG 32 or 46) and maintain oil viscosity between 20-400 mm²/s, operating temperature 0-60℃
Important Considerations
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Use recommended hydraulic oils (ISO VG 32 or 46) and maintain oil viscosity between 20-400 mm²/s, operating temperature 0-60℃
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Strictly control oil contamination (NAS 1638 Class 8 or better) to prevent component wear and pump failure; regular filtration is essential
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Never exceed maximum pressure of 7 MPa; adjust pressure within specified range (1.2-7 MPa) to ensure pump longevity
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Ensure stable and horizontal mounting to reduce vibration and prevent premature wear of shaft and bearings
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Prime the pump before initial startup to prevent dry running damage
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Maintain proper suction conditions (maximum vacuum 0.02 MPa) for reliable operation
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Ensure stable and horizontal mounting to reduce vibration and prevent premature wear of shaft and bearings
For detailed technical specifications, installation guidelines, and maintenance procedures, refer to the official Yuken AR Series documentation or contact authorized Yuken distributors.
Would you like a concise, ready-to-use summary of the AR Series key specs, control options, and typical applications for quick reference?
