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Product technical data
XLF-A4VG Axial Piston Fixed Pump Features
- Fixed pump with axial tapered piston rotary group ofbent-axis design, for hydrostatic drives in an open circuit
- For use in mobile and stationary applications- The flow is proportional to the drive speed and displacement
- The drive shaft bearings are designed for the bearing servicelife requirements usually encountered in these areas
- High power density
- Small dimensions
- High total efficiency
- Economical design
- One-piece tapered piston with piston rings for sealing
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XLF-A4VG Axial Piston Fixed Pump Product detail picture
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Application Video
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XLF-A4VG Axial Piston Fixed Pump Technical data
| Technical data |
| Size | NG | 28 | 40 | 56 | 71 | 90 | 125 | 180 |
Geometric displacement,per revolution
variable pump | Vg max cm⊃3; | 28 | 40 | 56 | 71 | 90 | 125 | 180 |
| boost pump (at p=20 bar) | Vg sp cm⊃3; | 6.1 | 8.6 | 11.6 | 19.6 | 19.6 | 28.3 | 39.8 |
| Rotational speed1 maximum at Vgmax | nnom rpm | 4250 | 4000 | 3600 | 3300 | 3050 | 2850 | 2500 |
| limited maximum2 | nmax1 rpm | 4500 | 4200 | 3900 | 3600 | 3300 | 3250 | 2900 |
| intermittent maximum3 | nmax2 rpm | 5000 | 5000 | 4500 | 4100 | 3800 | 3450 | 3000 |
| minimum | nmin rpm | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Flow at nnom and Vgmax | Qv l/min | 119 | 160 | 202 | 234 | 275 | 356 | 450 |
| Power4 at nnom,Vg max and Ap=400 bar | P kW | 79 | 107 | 134 | 156 | 183 | 238 | 300 |
| Torque4 with Vg max and Ap=400 bar | M Nm | 178 | 255 | 357 | 452 | 573 | 796 | 1146 |
| Ap=100 bar | M Nm | 45 | 64 | 89 | 113 | 143 | 199 | 286 |
| Rotary stiffness of drive shaft S | C kNm/rad | 31.4 | 69 | 80.8 | 98.8 | 158.1 | 218.3 | 244.5 |
| T | C kNm/rad | 一 | 一 | 95 | 120.9 | 一 | 252.1 | 318.4 |
| A | C kNm/rad | 一 | 79.6 | 95.8 | 142.4 | 176.8 | 256.5 | 一 |
| Z | C kNm/rad | 32.8 | 67.5 | 78.8 | 122.8 | 137 | 223.7 | 319.6 |
| U | C kNm/rad |
| 50.8 |
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| 107.6 |
| 一 |
| Moment of inertia of the rotary group | Jrw kgm | 0.0022 | 0.0038 | 0.0066 | 0.0097 | 0.0149 | 0.0232 | 0.0444 |
| Maximum angular acceleration⁵ | a rad/s⊃1; | 38000 | 30000 | 24000 | 21000 | 18000 | 14000 | 11000 |
| Case volume | V | 0.9 | 1.1 | 1.5 | 1.3 | 1.5 | 2.1 | 3.1 |
| Weight (without through drive)approx.6 | m kg | 29 | 31 | 38 | 50 | 60 | 80 | 101 |
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