Features
Axial Piston Variable Pump A7VO/63 Series
Variable pump with axial tapered piston rotary groupof bent-axis design, for hydrostatic drives in opencircuit
For use in mobile and stationary applications
Flow is proportional to the drive speed anddisplacement.bent axis
The flow can be steplessly changed by adjusting the
Wide selection of control devices
Technical data
Axial Piston Variable Pump A7VO/63 Series Technical data
| Item | Condition / Symbol | Unit | 55 | 65 | 80 | 107 | 160 |
|---|---|---|---|---|---|---|---|
| Size NG | 55 | 65 | 80 | 107 | 160 | ||
| Displacement, geometric, per revolution | Vg max | cm³ | 54.8 | 65 | 80 | 107 | 160 |
| Maximum rotational speed¹) | At Vg max — n_nom | rpm | 2500 | 2500 | 2240 | 2150 | 1900 |
| Maximum rotational speed¹) | At Vg < 0.74 × Vg max — n_max1 | rpm | 3400 | 3400 | 3000 | 2900 | 2560 |
| Maximum rotational speed²) | n_max2 | rpm | 3750 | 3750 | 3350 | 3200 | 2850 |
| Flow | At Vg max and n_nom — qv | l/min | 137 | 162 | 179 | 230 | 304 |
| Power | At Vg max, n_nom and Δp = 350 bar — P | kW | 80 | 95 | 105 | 134 | 177 |
| Torque | At Vg max and Δp = 350 bar — T | Nm | 305 | 362 | 446 | 596 | 891 |
| Rotary stiffness | Vg max to Vg /2 — c_min | kNm/rad | 10 | 12 | 16 | 21 | 36 |
| Rotary stiffness | Vg /2 to 0 (interpolated) — c_max | kNm/rad | 32 | 38 | 49 | 67 | 104 |
| Moment of inertia rotary group | J_GR | kgm² | 0.0042 | 0.0042 | 0.0080 | 0.0127 | 0.0253 |
| Maximum angular acceleration | α | rad/s² | 31600 | 31600 | 24200 | 19200 | 15300 |
| Case volume | V | l | 0.75 | 0.75 | 1.2 | 1.5 | 2.4 |
| Weight (approx.) | m | kg | 25 | 25 | 40 | 49 | 71 |
Manufacturing & R&D Strength
We are a professional manufacturer of hydraulic piston pumps, integrating independent R&D, precision machining, intelligent assembly and full-performance testing.
Supported by 3D CAD/CAE simulation, OKUMA CNC machining centers, ZEISS coordinate measuring equipment and 100% hydraulic test benches, we strictly control every production procedure to guarantee micron-level precision, stable performance and reliable quality for your hydraulic system solutions.
Case Studies
Taifeng Intelligent manufactures premium swashplate axial piston pumps engineered to withstand severe working conditions. Our variable displacement pumps power a wide range of heavy machinery: earthmoving excavators, oilfield pumping units, agricultural harvesters, road milling machines, multi-station hydraulic press lines and servo press systems. Explore our full proven application cases below for construction, oil & energy, farming and industrial forming sectors. We offer tailored displacement, electro-proportional & load-sensing control options for global OEM clients.
