HYDRAULIC PUMPS
Hydraulic Piston Pump, Model HL-A4VSO

Hydraulic Piston Pump, Model HL-A4VSO

(40-500cm³/rev variable displacement axial piston pump for open circuit)

The HL-A4VSO variable displacement pump is designed to adapt to your system's needs, ensuring efficient and reliable hydraulic power output for your open-loop applications. Whether you're managing industrial equipment or mobile machinery, this pump provides the precise control and high performance you require.

  • Displacement 40-500 cm³/rev
  • Nominal pressure 350 bar
  • Max. allowable pressure 400 bar
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Technical Data (Size 40 - 180)
Size 40 71 125 180
Displacement Vg max cm³/rev 40 71 125 180
Max. rotation speed nmax rpm 2600 2200 1800 1800
Max. flow at n=nmax L/min 104 156 225 324
at n=1500rpm L/min 60 107 186 270
Max. power Δp=350 bar at n=nmax kW 61 91 131 189
at n=1500rpm kW 35 62 109 158
Max. torque (Δp=350 bar) Nm 223 395 696 1002
Torque (Δp=100 bar) Nm 64 113 199 286
Weight approx. kg 40 54 87 103
Technical Data (Size 250 - 500)
Size 250 355 500
Displacement Vg max cm³/rev 250 355 500
Max. rotation speed nmax rpm 1500 1500 1320
Max. flow at n=nmax L/min 375 532 600
at n=1500rpm L/min 375 532 -
Max. power Δp=350 bar at n=nmax kW 219 310 385
at n=1500rpm kW 219 310 -
Max. torque (Δp=350 bar) Nm 1391 1976 2783
Torque (Δp=100 bar) Nm 398 564 795
Weight approx. kg 186 206 318
Size Displacement (cm³/rev) Max. speed (rpm) Max. Flow (L/min) Max. Power(kw) Δp=350 bar Details
an=nmax n=1500rpm n=nmax n=1500rpm
40 40 2600 104 60 61 35
71 71 2200 156 107 91 62
125 125 1800 225 186 131 109
180 180 1800 324 270 189 158
250 250 1500 375 375 219 219
355 355 1500 532 532 310 310
500 500 1320 600 - 385 -
Features
  • Engineered for Open-Circuit Systems Designed for applications requiring variable flow control and high efficiency.
  • Axial Piston Variable Displacement Pump Uses a swashplate mechanism for seamless displacement adjustments.
  • Flow Proportional to Speed and Displacement Ensures smooth and reliable hydraulic output for your applications.
  • Exceptional Suction Performance Optimized for continuous and stable operation in your system.
  • Compact and Lightweight Design Reduces your system’s footprint while maintaining high power output.
  • Low-Noise Operation Designed to minimize vibration and enhance efficiency in your setup.
  • Hydrostatic Balanced Shoes Improve durability and wear resistance, extending your equipment’s lifespan.
  • Fast Response Control Provides rapid system adjustments for your dynamic applications.
  • Integrated Swashplate Angle Indicator Allows for precise monitoring and adjustments tailored to your needs.
  • Control Mode DR, DP, FR, DFR, LR2, LR2G, LR2D, EM, HM, HS, HD, MA, EO, DS1
Applications
Construction Machinery
Construction Machinery
Marine and Offshore Equipment
Marine and Offshore Equipment
Mining and Quarrying Equipment
Mining and Quarrying Equipment
Metallurgical and Steelmaking Equipment
Metallurgical and Steelmaking Equipment