Eternal Hydraulic A8VO Hydraulic Piston Pump
A8VO Variable single/double hydraulic pump with two axial tapered piston rotary groups of bent-axis design for hydrostatic drives in open circuits.
Displacement: 55-200 ml/r
Rated Pressure: 350 bar
Maximum Pressure:400 bar
| Size | A8VO55 | A8VO80 | A8VO107 | A8VO140 | A8VO200 | ||
|---|---|---|---|---|---|---|---|
| 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 | 1 | 1 | 1 | 1 | ||
| Input speed at Vg max 1) | nmax 1 | rpm | 2500 | 2240 | 2150 | 2100 | 1950 |
| at Vg ≤ Vg max2) | nmax | rpm | 3000 | 2750 | 2450 | 2450 | 2250 |
| Flow at nmax and Vg max | qv max | L/min | 2 x 137 | 2 x 179 | 2 x 230 | 2 x 294 | 2 x 390 |
| Power at nmax, Vgmax and Dp=350 bar | Pmax | kW | 160 | 209 | 268 | 294 3) | 325 3) |
| Input torque | Tmax | Nm | 611 | 891 | 1192 | 1337 3) | 1592 3) |
| Rotary stiffness (single rotary group)5) | cTW | Nm/rad | 11213 | 17985 | 25565 | 41408 | 39505 |
| cTW | Nm/rad | 41442 | 67666 | 89381 | 146677 | 156876 | |
| Moment of inertia for rotary group | JTW | kgm2 | 0.0161 | 0.0209 | 0.0345 | 0.0581 | 0.0849 |
| without power take-off (PTO) | JTW | kgm2 | 0.0126 | 0.0173 | 0.0288 | 0.05 | 0.075 |
| Angular acceleration (single rotary group)5) | a | rad/s2 | 25800 | 21800 | 17100 | 7500 | 11000 |
| 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) | 10.7 | 11 (19)4) |
| Effective displacement | Vg max/eff | cm3 | 9.7 | 9.7 | 11 (13.7) | 12.7 | 13.6 (23.6) |
| Gear ratio i = ninput/naux. pump | 0.887 | 0.887 | 0.78 | 0.843 | 0.804 | ||
| Variation: with power take-offs, K.., F. | |||||||
| Max. torque at PTO | Tmax | Nm | 250 | 350 | 380 | 450 | 650 |
| Gear ratio i = ninput/nPTO | 1 | 1 | 1 | 1 | 0.804 | ||
Features of A8VO Hydraulic Pump
- Variable double pump is equipped with two axial conical plunger rotating components with inclined axis design for hydrostatic transmission in an open circuit
- The flow rate is proportional to the input speed and displacement, and it changes steplessly from qv max to qv min(0)
- The pump is suitable for mounting directly on the flywheel housing of a diesel engine
- The auxiliary pump and the two oil circuits share one suction port
- Powerful control program, which can realize different control and adjustment functions
- Independent power controller
- Built-in auxiliary pump with pressure relief valve, optional additional pressure relief valve
- A variety of power output devices can be used to install axial piston and gear pumps
- Outstanding power/weight ratio
- Long service life– Long service life
Instructions
- The A8VO pump is designed for use in open circuits.
- Project planning, assembly and commissioning of the pump must be carried out by qualified personnel.
- Working line ports and function ports are only designed to install hydraulic lines.
- During and shortly after operation, the motor (especially the solenoid) may be at risk of burns. Take appropriate safety precautions, such as wearing protective clothing.
- The characteristics of the pump may vary, depending on the working condition of the pump (working pressure, oil temperature).
- Tightening torque:
- The tightening torques specified in this technical data sheet are all maximum values and must not exceed these values (maximum thread torque).
- Observe the manufacturer’s instructions for the maximum allowable tightening torque of the installation tool used!
- For DIN 13 fixing screws, we recommend a separate check of the tightening torque according to the 2003 version VDI 2230.
- Subject to the data and information provided here.
Application of A8VO Hydraulic Pump
Piston pumps are widely used in high-pressure, high-flow, high-power systems and where the flow needs to be regulated, such as mobile and construction equipment, engineering vehicles, heavy-duty planers, metal forming and stamping, machine tools, hydraulic presses, oilfield equipment, mining and metallurgical machinery, marine and other hydraulic systems.
Related Product
A7VO series 63 Hydraulic Axial piston variable pump is a robust high pressure pump for universal use,with Size 28- 500 cc, Nominal pressure 350 bar, Maximum pressure 400 bar, used for open circuit. Our products have lower noise and longer life, can replace Rexroth type.