BOSCH Rexroth A20VO Axial Piston Variable Double Pump
Features Variable pump with two axial piston rotary groups in swashplate design for use in open circuit hydrostatic drives For use in mobile and stationary applications The pump consists of proven components from the A11VO (RE 92500), A10VO/53 (RE 92703) or A4VSO (RE 92050) variable pumps The pump operates under self-priming condition, with tank pressurisation or with charge pump (sizes 190...260) A wide variety of controls are available Setting of the constant power control is possible via external adjustments, even when the unit is operating (only with power contol). The pump is available with a through drive to mount a gear pump or a second axial piston pump Output flow is proportional to drive speed and pump displacement and is steplessly variable between maximum and zero displacement A20VO Series 1 Sizes A20VO60 Nominal pressure 250Bar Peak pressure 315Bar A20VO95 A20VO190(with impeller) A20VO260(with impeller) A20VO520 Nominal pressure 350Bar Peak pressure 400Bar
Feature
The Rexroth A20VO piston pump is a two axial piston rotating group design and is designed for open circuit hydrostatic drive. It has a wide range of applications and is suitable for both mobile and stationary use. The pump contains proven components derived from the A11VO (RC 92500), A10VO/53 (RC 92703) or A4VSO (RC 92050) variable displacement pumps.
Variable displacement pump operates in self-priming condition with pressurized tank or supplementary pump (available for sizes 190...260). It offers a range of control options, including the ability to set constant power control (power control only) even when the device is running, allowing external adjustments.
The A20VO pump can be configured with a variety of controls, providing flexibility for different operating requirements. Additionally, it facilitates the installation of a gear pump or a second axial piston pump via a shared shaft drive unit. Output flow varies seamlessly in proportion to drive speed, providing continuous stepless regulation between maximum and zero displacement.
Parameter
A20VO Series: A20VO 60,A20VO 95,A20VO 195,A20VO 26,A20VO 520
|
Size |
without charge pump with charge pump |
60 |
95 |
190 |
260 |
520 |
|
|
Displacement (per rotary group) |
Vg max |
cm3 |
60 |
93,8 |
192,7 |
260 |
520 |
|
Vg min |
cm3 |
0 |
0 |
0 |
0 |
0 |
|
|
Speed maximal 1) at Vg max |
nmax |
min–1 |
2700 |
2350 |
2500 2) |
2300 2) |
1450 |
|
Speed max. 3) at Vg ≤ Vg max |
nmax |
min–1 |
3200 |
2780 |
2500 |
2300 |
1720 |
|
Flow at nmax and Vg max |
qv max |
L/min |
2x162 |
2x220 |
2x482 |
2x598 |
2x754 |
|
Power at qV max and Δp = 350 bar |
Pmax |
kW |
1354) |
257 |
562 |
698 |
880 |
|
Torque at Vg max at long-term (Δp = 350 bar) max. perm., short term (Δp = 400 bar) |
Tmax |
Nm |
477 4) |
1045 |
2147 |
2897 |
5793 |
|
Tmax |
Nm |
602 4) |
1194 |
2454 |
3310 |
6621 |
|
|
Moment of inertia (of the rotating parts) |
J |
kgm2 |
0,0113 |
0,0346 |
0,0604 |
0,0912 |
0,696 |
|
Mass approx. |
m |
kg |
44 |
|
|
|
640 |
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