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A8VO
xeriwell or others
Rexroth A8VO Axial Piston Variable Double Pump is asturdy hydraulic pump, specially designed for hydrostatic drives in open circuits. These pumps comes with twoaxial tapered piston rotary groups with a bent-axis design, which allows variable displacement. Their pump flow is proportional to the input speed and to the displacement, and is infnitely variable from qV max to qVmin =0.
These pumps are perfect for applications requiring high-pressure hydraulics in industrial and mobile machinery due to their long service life and higher performance.With nominal pressures of 350 bar and peak pressures of up to 400 bar, Rexroth A8VO series is available in sizes ranging from 55 to 200 and supports direct attachment on diesel engine flywheel housings.
These pump features numerous features such as one common suction port for auxiliary pump and both circuits, individual power controller, integrated auxiliarypump with pressure-relief valve, Excellent power to weight ratio and many others.
Features:
1) Variable double pump with two axial tapered piston rotary groups with bent axis design for open circuit hydrostatic drives
2) Flow is proportional to the drive speed and the displacement and is infinitely variable between qV max and qV min = 0
3) The pump is suitable for direct mounting on the flywheel housing in diesel engines
4) One common suction port for auxiliary pump and both circuits.
5) A wide range of control instruments is available for different control and regulating functions
6) Individual power control
7) Integrated auxiliary pump with pressure relief valve, optionally with additional pressure reducing valve
8) Power take-off for mounting axial piston and gear pumps
9) Excellent power to weight ratio
10) Long service life
Type: A8VO55, A8VO80, A8VO107, A8VO140, A8VO200
Rexroth A8VO 55/80/107/120/140/160/200 Hydraulic Pump spare parts list:
| Technical Data | |||||||
| Table of values (theoretical values,excluding ηmhand ηv:values rounded) | |||||||
| Size | 55 | 80 | 107 | 140 | 200 | ||
| Displacement | Vg max | cm3 | 2 x 54,8 | 2 x 80 | 2 x 107 | 2 x 140 | 2 x 200 |
| Vg min | cm3 | 0 | 0 | 0 | 0 | 0 | |
| Gear ratio i = ninput/nrotary groups | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 | ||
| Input speed max. at Vg max1) | nmax 1 | rpm | 2500 | 2240 | 2150 | 2100 | 1950 |
| Input speed max. at Vg≤ Vg max2) | nmax | rpm | 3000 | 2750 | 2450 | 2450 | 2250 |
| Flow max. at nmax(Vg max) | qv max | L/min | 2 x 137 | 2 x 179 | 2 x 230 | 2 x 294 | 2 x 390 |
| Power max. | Pmax | kW | 160 | 209 | 268 | 294 | 325 |
| Input torque max. | Tmax | Nm | 611 | 891 | 1192 | 13373) | 15923) |
| Mass moment of inertia | J | kgm2 | 0,017 | 0,022 | 0,035 | 0,050 | 0,075 |
| Mass approx. | m | kg | 82 | 90 | 116 | 146 | 180 |
| Variation:With integrated auxiliary pump,F00,F-4) | |||||||
| Displacement with integrated auxiliary pump | Vg max | cm3 | 8,6 | 8,6 | 8,6 (10,7)4) | 10,7 | 11 (19)4) |
| Effective displacement | Vg max/eff | cm3 | 9,7 | 9,7 | 11 (13,7) | 12,7 | 13,4 (23,2) |
| Gear ratio i = ninput/naux. pump | 0,887 | 0,887 | 0,780 | 0,843 | 0,818 | ||
| Variation:With PTO,K-,F- | |||||||
| Max. torque at PTO | Tmax | Nm | 250 | 350 | 380 | 315 | 400 |
| Values valid up from 2007 | 280 | 350 | 380 | 450 | 650 | ||
| Gear ratio i = ninput/nPTO | 1,0 | 1,0 | 1,0 | 1,0 | 0,818 | ||
| 1) The values shown are valid for an absolute pressure (pabs) of 1 bar at the suction port S and for operation with mineral fluid (with a specific mass of 0.88kg/L). 2) The values shown are valid for Vg≤ Vg maxor for an increase in the inlet pressure pabsat the suction port S (see page 5). 3) Observe max. permissible torque! 4) (..) = Available on request! | |||||||
