HYDRAULIC PUMPS
Hydraulic Piston Pump, Model HL-A11VO

Hydraulic Piston Pump, Model HL-A11VO

(74-260cm³/rev variable displacement axial piston pump for open circuit)

The HL-A11VO series hydraulic pump is built for compact, durable performance, delivering steady hydraulic power even under tough conditions. It is especially well-suited for applications with rapidly changing dynamic loads.

  • Displacement 74-260 cm³/rev
  • Nominal pressure 350 bar
  • Max. allowable pressure 400 bar
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Technical Data (Size 75 - 130)
Size 75 95 115 130
Geometric displacement Vg max cm³/rev 74 93.5 93.5 130
Vg min cm³/rev 0 0 0 0
Rotation speed at Vg max nmax rpm 2550 2350 2350 2100
at Vg≤Vg max nmax1 rpm 3000 2780 2780 2500
Flow at nmax and Vg max qv max L/min 189 220 220 273
Power at qv max and Δp=350bar Pmax kW 110 128 128 159
Torque at Vg max and Δp=350bar Tmax Nm 412 521 521 724
Rotary stiffness of drive shaft Shaft end Z c Nm/rad 145836 199601 199601 302495
Shaft end P c Nm/rad 143104 196435 196435 312403
Shaft end S c Nm/rad 101921 173704 173704 236861
Shaft end T c Nm/rad 125603 - - -
Moment of inertia for rotary group JTW kgm² 0.0115 0.0173 0.0173 0.0318
Max. angular acceleration α rad/s² 15000 13000 13000 10500
Case volume V L 1.85 2.1 2.1 2.9
Weight approx. m kg 45 53 53 66
Technical Data (Size 145 - 260)
Size 145 190 260
Geometric displacement Vg max cm³/rev 145 193 260
Vg min cm³/rev 0 0 0
Rotation speed at Vg max nmax rpm 2200 2100 1800
at Vg≤Vg max nmax1 rpm 2500 2100 2300
Flow at nmax and Vg max qv max L/min 319 405 468
Power at qv max and Δp=350bar Pmax kW 186 236 273
Torque at Vg max and Δp=350bar Tmax Nm 808 1075 1448
Rotary stiffness of drive shaft Shaft end Z c Nm/rad 302495 346190 686465
Shaft end P c Nm/rad 312403 383292 653835
Shaft end S c Nm/rad 236861 259773 352009
Shaft end T c Nm/rad - 301928 567115
Moment of inertia for rotary group JTW kgm² 0.0341 0.055 0.0878
Max. angular acceleration α rad/s² 9000 6800 4800
Case volume V L 2.9 3.8 4.6
Weight approx. m kg 76 95 125
Size Displacement (cm³/rev) Max. speed (rpm) Max. Flow (L/min) Max. power (kw)
Vgmax Vgmin Vgmax Vg≤Vgmax Δp=350 bar
75 74 0 2550 3000 189 110
95 93.5 0 2350 2780 220 128
115 93.5 0 2350 2780 220 128
130 130 0 2100 2500 273 159
145 145 0 2200 2500 319 186
190 193 0 2100 2100 405 236
260 260 0 1800 2300 468 273
Features
  • Static hydraulic transmission Designed for open-loop hydraulic systems.
  • Flow proportional to drive speed and displacement Allows stepless adjustment through swivel angle changes.
  • Auto-supply operation Runs with either pressurized tanks or optional built-in charge pump.
  • Variety of control options Provides flexibility to meet different application demands.
  • External power control adjustability Control devices can be adjusted even during operation.
  • Through-drive capability Compatible with gear pumps or other axial piston pumps of the same size.
  • Flow output adjustable from zero Provides fine-tuned control between zero and maximum flow.
  • Control Mode DRS, EP, EPD, LRDU, LES, LRDS, LRDH
Applications
Mining and Quarrying Equipment
Mining and Quarrying Equipment
Construction Machinery
Construction Machinery