Hydraulic Piston Pump, Model HL-A7V
(20-500cm³/rev variable displacement axial piston pump for closed circuit)
The HL-A7V variable displacement pump is built to handle high-pressure, heavy-load, and high-dynamic response applications in closed-loop hydraulic systems. Whether you're optimizing your industrial equipment or improving the efficiency of your construction machinery, this pump delivers the reliable performance you need.
- Displacement 20-500 cm³/rev
- Nominal pressure 350 bar
- Max. allowable pressure 400 bar
Technical Data
| Size | NG | |||||||
| Geometric displacement | Vg max | cm³/rev | 28.1 | 54.8 | 80 | 107 | 160 | |
| Max. rotation speed | at Vg max | nnom | rpm | 3150 | 2500 | 2240 | 2150 | 1900 |
| at Vg g max | nmax1 | rpm | 4250 | 3400 | 3000 | 2900 | 2560 | |
| Max. rotation speed | nmax2 | rpm | 4750 | 3750 | 3350 | 3200 | 2850 | |
| Flow | at Vg max and nnom | qv | L/min | 89 | 137 | 179 | 230 | 304 |
| Power | at Vg max, nnom and Δp = 350 bar | p | kW | 52 | 80 | 105 | 134 | 177 |
| Torque | at Vg max and Δp = 350 bar | T | Nm | 156 | 305 | 446 | 596 | 891 |
| Rotary stiffness | Vg max to Vg/2 | cmin | kNm/rad | 5 | 10 | 16 | 21 | 36 |
| Vg/2 to 0 (interpolated) | cmax | kNm/rad | 16 | 32 | 49 | 67 | 104 | |
| Moment of inertia for rotary group | JGR | kgm² | 0.0042 | 0.0042 | 0.008 | 0.0127 | 0.0253 | |
| Max. angular acceleration | α | rad/s² | 35900 | 31600 | 24200 | 19200 | 15300 | |
| Case volume | V | L | 0.5 | 0.75 | 1.2 | 1.5 | 2.4 | |
| Weight (approx.) | m | kg | 17 | 25 | 40 | 49 | 71 |
Features
- Proportional Flow Control Automatically adjusts flow based on drive speed and displacement, keeping your system running efficiently.
- Flexible Control Options A variety of control modes allow you to fine-tune your hydraulic system for optimal performance.
- Fluid Compatibility Designed to operate with both mineral oil and fire-resistant hydraulic fluids, giving you greater versatility.
- High-Performance Rotating Assembly Features advanced rotary components and spherical control plates that provide automatic centering, ensuring smooth operation at all speeds.
- Enhanced Durability Upgraded internal components extend service life, reducing maintenance costs and downtime.
- Radial Load Support Built to handle radial forces, adding strength and reliability to your system.
- Quiet and Efficient Engineered for low-noise operation, helping you maintain a more productive and comfortable work environment.
- Control Mode LV, DR, EP, HD, MA, SC
Applications
