Series and Models of YUKEN Crane Hydraulic Pumps
Series and Models of YUKEN Crane Hydraulic Pumps
1. Overview of YUKEN Crane Hydraulic Pumps
YUKEN offers a comprehensive range of hydraulic pumps specifically engineered for crane applications, providing reliable power for lifting, telescoping, slewing, and travel functions. These pumps are designed to meet the demanding requirements of mobile hydraulic systems, including high pressure capability, energy efficiency, precise control, and durability in harsh operating environments. YUKEN’s crane hydraulic pumps feature advanced swash plate technology, integrated control systems, and robust construction to ensure safe and efficient operation of cranes in construction, infrastructure development, and material handling applications.
2. Main Series of YUKEN Crane Hydraulic Pumps
YUKEN provides several specialized pump series optimized for crane hydraulic systems, each offering unique features to meet specific application requirements:
2.1 Variable Displacement Axial Piston Pumps (A Series)
The A series is YUKEN’s flagship line of variable displacement axial piston pumps, widely used in medium to large-sized crane hydraulic systems requiring high power density and precise control.
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Key Features for Cranes:
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Swash plate design for compact size and high efficiency (up to 95%)
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Continuous operating pressure up to 31.5 MPa, peak pressure up to 35 MPa
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Multiple control options for crane-specific functions
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Low noise operation (≤75 dB) for operator comfort
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High reliability with service life exceeding 10,000 hours
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Sub-series for Cranes:
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AR Series: Pressure compensator control for load-sensing applications
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AE Series: Electro-hydraulic proportional control for precise operation
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AS Series: Load-sensing control for energy-efficient operation
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A10VSO Series: Open-circuit design for travel and auxiliary functions
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2.2 Fixed Displacement Piston Pumps (P Series)
YUKEN’s P series fixed displacement piston pumps provide constant flow for specific crane functions requiring stable hydraulic power.
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Key Features for Cranes:
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High efficiency and low noise operation
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Continuous pressure rating up to 28 MPa
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Compact design for space-limited crane installations
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Available in various displacements to match specific flow requirements
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Common Models:
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P16, P22, P37, P56, P70, P90, P100, P145 (cm³/rev)
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Mounting options: Flange (F) and Foot (L)
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Rotation directions: Clockwise (R) and Counterclockwise (L)
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2.3 Gear Pumps (IPH/IPM Series)
YUKEN’s IPH (internal gear) and IPM (external gear) series pumps are ideal for low-pressure crane auxiliary systems.
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Key Features for Cranes:
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Cost-effective solution for auxiliary functions (steering, lubrication)
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Quiet operation and compact design
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Continuous pressure rating up to 21 MPa
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High reliability with simple construction
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Common Models:
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IPH-2B, IPH-3B, IPH-4B, IPH-5B, IPH-6B (internal gear)
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IPM-03, IPM-04, IPM-06, IPM-10 (external gear)
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3. Model Coding System for YUKEN Crane Pumps
YUKEN uses a standardized coding system for its crane hydraulic pumps to clearly identify key specifications:
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Code Position
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Description
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Examples for Crane Applications
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|---|---|---|
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Series Identifier
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Indicates the basic pump type
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A (axial piston), P (fixed piston), IPH (internal gear), IPM (external gear)
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Displacement Code
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Nominal displacement in cm³/rev
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37 (37 cm³/rev), 70 (70 cm³/rev), 145 (145 cm³/rev)
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Control Type
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Indicates the control mechanism
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R (pressure compensator), E (electro-hydraulic), S (load sensing)
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Mounting Type
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Installation configuration
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F (flange), L (foot)
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Rotation Direction
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Viewed from shaft end
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R (clockwise), L (counterclockwise)
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Design Number
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Specific design variation
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01, 02, 03
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3.1 Detailed Model Interpretation for A Series Crane Pumps
Example: A70-L-R-01
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A: Axial piston pump series
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70: Nominal displacement (70 cm³/rev)
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L: Foot mounting type
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R: Pressure compensator control
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01: Design number
4. Popular Models for Crane Applications
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Model
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Series
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Displacement
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Control Type
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Crane Application
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Pressure Rating
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|---|---|---|---|---|---|
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A37-F-R-01
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A Series
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37 cm³/rev
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Pressure Compensator
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Truck crane lifting systems
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31.5 MPa
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A70-L-S-02
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A Series
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70 cm³/rev
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Load Sensing
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Mobile crane telescoping booms
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31.5 MPa
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A145-F-E-03
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A Series
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145 cm³/rev
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Electro-hydraulic
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Large crawler crane main hydraulic systems
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31.5 MPa
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P70-F-R-01
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P Series
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70 cm³/rev
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Fixed Displacement
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Crane auxiliary functions (steering, outriggers)
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28 MPa
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IPH-5B-63-11
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IPH Series
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63 cm³/rev
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Internal Gear
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Crane lubrication systems
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21 MPa
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A22-L-R-01
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A Series
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22 cm³/rev
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Pressure Compensator
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Mini crane hydraulic systems
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31.5 MPa
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5. Key Features for Crane Applications
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High Pressure Capability: Designed to handle the high pressure requirements of crane lifting systems (up to 31.5 MPa continuous operation).
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Energy Efficiency: Load sensing and pressure compensator controls reduce energy consumption during low-load conditions, improving fuel efficiency for mobile cranes.
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Precise Control: Electro-hydraulic proportional control options enable smooth and accurate operation of crane functions, enhancing safety and productivity.
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Rugged Construction: Robust design withstands shock loads, vibration, and harsh environmental conditions typical of construction sites.
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Compact Design: Space-saving configurations for installation in tight crane engine compartments and hydraulic power units.
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Low Noise Operation: Special design features reduce noise levels, improving operator comfort during long working hours.
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Multiple Mounting Options: Flange and foot mounting configurations to suit different crane designs and installation requirements.
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Easy Maintenance: Modular design allows for quick replacement of wear parts, minimizing downtime for crane fleets.
6. Application Considerations for Crane Hydraulic Pumps
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Select the appropriate pump series and model based on the specific crane function (lifting, telescoping, slewing, travel, or auxiliary).
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Consider the operating pressure, flow requirements, and control needs of the crane hydraulic system.
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Ensure compatibility with the crane’s prime mover (engine or electric motor) in terms of speed and power.
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Choose the right control type (pressure compensator, load sensing, or electro-hydraulic) to optimize energy efficiency and performance.
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Verify the pump’s mounting configuration matches the crane’s hydraulic power unit design.
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Consider the environmental conditions (temperature, dust, moisture) to select appropriate seals and protection features.
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Ensure proper hydraulic fluid selection and maintenance to maximize pump service life and reliability.
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Follow YUKEN’s installation guidelines and maintenance procedures for safe and efficient operation.
