Hydraulic Piston Pump, Model HL-A4VG
(40-180cm³/rev variable displacement axial piston pump for closed circuit)
The HL-A4VG variable displacement pump is designed for precision, reliability, and efficiency in closed-loop hydraulic systems. It ensures smooth control, rapid response, and high-pressure output, making it ideal for demanding applications in mobile and industrial machinery.
- Displacement 40-180 cm³/rev
- Nominal pressure 400 bar
- Max. allowable pressure 450 bar
Technical Data
| Size | ||||||||
| Displacement (variable pump) | Vgmax | cm³/rev | 40 | 56 | 71 | 90 | 125 | 180 |
| Displacement (boost pump) | Vg Sp | cm³/rev | 8.8 | 11.8 | 19.8 | 19.8 | 28.5 | 40 |
| Max. rotation speed | nmax | rpm | 4000 | 3600 | 3300 | 3000 | 2800 | 2500 |
| Min. rotation speed | nmin | rpm | 500 | 500 | 500 | 500 | 500 | 500 |
| Max. flow | at n=nmax | L/min | 160 | 201.6 | 234.3 | 270 | 350 | 450 |
| Max. power | at n=nmax V=Vg max (Δp=400 bar) | kW | 106.6 | 134.4 | 156.2 | 180 | 233.3 | 294 |
| Max. torque | at V=Vgmax (Δp=400 bar) | Nm | 254.4 | 356 | 451.5 | 572.4 | 795 | 1146.5 |
| Case volume | V | L | 1.1 | 1.5 | 1.5 | 1.5 | 2.2 | 3.2 |
| Weight | kg | 32 | 39 | 50 | 61 | 82 | 102 | |
Features
- Optimized for Closed-Circuit Systems Engineered for hydrostatic drive applications in mobile machinery, ensuring seamless performance under heavy loads.
- Precise Flow Control Adjusts flow proportionally to pump speed and displacement for smooth operation.
- Seamless Variable Adjustment Swashplate angle allows infinitely adjustable displacement control for greater precision.
- Stable Flow Reversal Zero-passage swashplate transition ensures smooth directional changes without pressure spikes.
- Built-in Overload Protection High-pressure relief valves protect pumps and motors from excessive loads, enhancing system safety.
- Integrated Auxiliary Pump Provides boost pressure and control oil to maintain system stability.
- Pressure Limiting Valve Built-in relief system prevents excessive boost pressure for optimized performance.
- High-Precision, Long-Lasting Components Reinforced internal structures and premium bearings ensure extended durability.
- Reliable Sealing System PARKER sealing components prevent leaks and maintain consistent performance in extreme conditions.
- Control Mode HW, DA1, DA2, HD1, HD3
Applications
