A8vo Excavators Hydraulic Piston Pump with Rexroth Sauer Eaton Brand

A8VO Hydraulic piston pump
Hydraulic piston double pump A8VO55, A8VO80, A8VO107, A8VO140, A8VO200
Description
Open circuit
Series 61 / 63
Control devices: LAOH2, LAOK, LAOKS, LAOKH1, LAOKH2, LAOKH3, LA1H2, LA1S, LA1K, LA1KS, EP, LA1KH1, etc.
Nominal pressure 350 bars. Peak pressure 400 bars
– Variable double pump A8VO with two axial tapered piston rotary groups of bent-axis design for hydrostatic drives in open circuits
– The flow is proportional to the input speed and to the displacement, and is infinitely variable from qV max to qV min = 0
– The pump is suitable for direct mounting on the flywheel case in diesel engines
– One common suction port for auxiliary pump and both circuits
– A wide range of control instruments is available for different control and regulating functions
– Individual power controller
– Integrated auxiliary pump with pressure-relief valve, optionally with additional pressure-reduction valve
– Power take-off for mounting axial piston and gear pumps
– Excellent power to weight ratio
– Long service life
Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
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
1) The values shown are valid for absolute pressure (pabs) of 1 bar at suction port S and for operation with mineral fluids with a specific mass of 0.88kg/L.
2) The values shown are valid for Vg ≤ Vg max or for an increase in the inlet pressure pabs at the suction port S.
3) Observe max. Permissible torque!
4) Available on request
Hydraulic fluid
Before starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids) and RE 90223 (HF hydraulic fluids) for detailed information regarding the choice of hydraulic fluids and application conditions.
The A8VO variable double pump is not suitable for operation with HFA. If HFB, HFC and HFD or environmentally acceptable hydraulic fluids are being used, the limitations regarding technical data and seals mentioned in RE 90221 and RE 90223 must be observed.
Details regarding the choice of hydraulic fluid
The correct choice of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature, in an open circuit the tank temperature. The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range (νopt.) – The shaded area of the selection diagram. We recommended that the higher viscosity class be selected in each case. Example: At an ambient temperature of X°C, an operating temperature of 60°C is set. In the optimum viscosity range (νopt., shaded area) this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68. Note: The case drain temperature, which is affected by pressure and speed, is always higher than the tank temperature. At no point in the system may the temperature be higher than 115°C. If the above conditions cannot be maintained due to extreme operating parameters, please contact us.
Case drain fluid
The case drain chamber is connected to the suction and gear chambers. A case drain line to the tank is not required. Note the special feature of size 200 for flushing fluid.
External flushing fluid connection
All A8VO variable double pumps in size 200 always require an external flushing fluid connection from the R4 port to the tank, to ensure cooling and lubrication of the bearing sets. This line should have an internal diameter ≥ 15 mm.
Details model of A8VO pumps
R902063842 A8VO107LA1KH1/63R1-NZG05F001
R902101404 A8VO107LA0H2/63R1-NZG05K020
R902063993 A8VO107LA0KH3/63R1-NZG05F001
R902101695 A8VO200LA1KH1/63R1-NZX05F004 S
R902065690 A8VO107LA0KH3/63R1-NZG05F011
R902101867 A8VO107LA1KH2/63R1-NZG05F014
R902065692 A8VO107LA0KH3/63R1-NZG05F041
R902101884 A8VO140LA1KH2/63R1-NZG05F014
R902067743 A8VO200LA0KH3/63R1-NZG05F001 S
R902102519 A8VO140LA1S5/63R1-NZG05F17X S
R902068769 A8VO200LA1KH2/63R1 NSG05K040
R902102631 A8VO140LA0KS/63R1-NZG05F171
R902068772 A8VO107LA0KH3/63R1-NZG05F001 S
R902102788 A8VO107LA1S/63R1-NZG05K020
R902070705 A8VO55LA0H2/61R1-NZG05K010
R902102892 A8VO140LA1KS/63R1-NZG05F044
R902070811 A8VO140LA1S/63R1-NZG05F04X S
R902102897 A8VO140LA1H2/63R1-NZG05F174
R902075095 A8VO140EP2/63R1-NZG05F071H
R902107631 A8VO107LA1KH3/63R1-NZG05F071
R902077086 A8VO107LA0H2/63R1-NZG05F011
R902107707 A8VO140LA0KH2/63R1-NZG05K070
R902077277 A8VO107LA0KH2/63R1-NZG05K070
R902107716 A8VO107LA1S/63R1-NZG05K040 S
R902078708 A8VO107LA1H2/63R1-NZG05F044
R902107747 A8VO80LA1S/63R1-NZG05K020 S
R902078848 A8VO107LA1KH3/63R1-NZG05F004
R902107777 A8VO140LA0KH2/63R1-NZG05F171
R902078909 A8VO80LA0K/63R1-NZG05F001
R902107967 A8VO140LA1KH2/63R1-NZG05F001
R902078970 A8VO107LA0KH2/63R1-NZG05F001
R902107971 A8VO80LA0KS/63R1-NZG05F001
R902080538 A8VO140LA1H2/63R1-NZG05F074
R902110447 A8VO140LA0KH2/63R1-NZG05F171
R902080699 A8VO140LA0K/63R1-NZG05F001
R902115660 A8VO140LA0KS/63R1-NZG05F071
R902080898 A8VO107LA0KH3/63R1-NZG05F021
R902115750 A8VO107LA0K/63R1-NZG05K010
R902082111 A8VO140LA1KH3/63R1-NZG05F071
R902115784 A8VO200LA1KH2/63R1-NZG05F014
R902082183 A8VO55LA0KH2/61R1-NZG05F021
R902115812 A8VO200LA1KH2/63R1-NZG05F001
R902082260 A8VO107LA0KS/63R1-NZG05K070
R902117501 A8VO55LA0KH2/61R1-NZG05F071
R902084001 A8VO107LA0H2/63R1-NZG05K010
R902117519 A8VO107LA0KH3/63R1-NZG05F001
R902084238 A8VO107LA0KH2/63R1-NZG05K020
R902117551 A8VO107LA0KH2/63R1-NZG05F041
R902084385 A8VO107LA1KH3/63R1-NZG05F071
R902117603 A8VO107LA0KS/63R1-NZG05F071
R902086517 A8VO107LA0KH1/63R1-NZG05F001
R902117672 A8VO140LA0KH2/63R1-NZG05K070
R902086586 A8VO140LA1KH2/63R1-NZG05F071
R902117816 A8VO140LA1H2/63R1-NZG05F174
R902086862 A8VO80LA1KH1/63R1-NZG05F004
R902119514 A8VO140LA0KH1/63R1-NZG05F001
R902088572 A8VO140LA1KH3/63R1-NZG05F004
R902119686 A8VO107LA0K/63R1-NZG05K000
R902088599 A8VO107EP2/63R1-NZG05F041H
R902119849 A8VO55LA0K/61R1-NZG05K020
R902088817 A8VO107LA0KH2/63R1-NZG05K040
R902119855 A8VO140LA0K/63R1-NZG05K070
R902088851 A8VO107LA0K/63R1-NZG05K000
R902119904 A8VO107LA1KH2/63R1-NZG05F044
R902088924 A8VO55LA1KH2/61R1-NZG05F021
R902119910 A8VO107LA1KH2/63R1-NZG05K070
R902088995 A8VO107LA1H2/63R1-NZG05F074
R902121515 A8VO107LA0K/63R1-NZG05K020
R902090091 A8VO107LA0KH2/63R1-NZG05F071
R902121782 A8VO200LA1KH1/63R1 XSG05F000 S
R902090193 A8VO140LA0KH2/63R1-NZG05F071
R902121862 A8VO107LA0K/63R1-NZG05F001
R902090464 A8VO80LA0K/63R1-NZG05F001
R902124065 A8VO80LA1KS/63R1-NZG05K010
R902094552 A8VO107LA1KS/63R1-NZG05F074
R902124101 A8VO107LA0KH2/63R1-NZG05F071
R902094782 A8VO55LA0KH2/61R1-NZG05K020
R902126776 A8VO200LA0KH1/63R1-NZG05K020 S
R902094836 A8VO140LA0KS/63R1-NZG05F071
R902126955 A8VO80LA0K/63R1-NZG05K010
R902094986 A8VO80LA1KH1/63R1-NZG05K300
R902130922 A8VO55LA1K/61R1-NZG05K000
R902096531 A8VO140LA1KS/63R1-NZG05F024
R902132132 A8VO107LA0K/63R1-NZG05F011
R902096543 A8VO200LA1KH1/63R1-NZG05F001
R902132134 A8VO80LA0K/63R1-NZG05K020
R902096623 A8VO200LA1H2/63R1-NZG05K860
R902132138 A8VO107LA0KH2/63R1-NZG05F071
R902096712 A8VO80LA0K/63R1-NZG05K000
R902132161 A8VO107LA1KS/63R1-NZG05F074
R902096720 A8VO107LA0K/63R1-NZG05F041
R902132264 A8VO55LA0K/61R1-NZG05K000
R902096828 A8VO55LA0K/61R1-NZG05F001
R902132266 A8VO55LA0K/61R1-NZG05F001
R902099007 A8VO55LA0K/61R1-NZG05F011
R902132267 A8VO55LA0K/61R1-NZG05F001
R902100157 A8VO140LA1KH2/63R1-NZG05K070
R902132268 A8VO55LA0K/61R1-NZG05K000
R902100176 A8VO200LA1KH1/63R1-NZX05F004 S
R902132292 A8VO55LA0KH2/61R1-NZG05F001
R902100195 A8VO200LA1KH2/63R1-NZG05F014
R902132300 A8VO55LA0KH2/61R1-NZG05K000
R902100245 A8VO107LA1KH3/63R1-NZG05F001
R902132326 A8VO55LA0KH2/61R1-NZG05K000
R902101075 A8VO55LA1KH3/61R1-NZG05K070 S
R902134502 A8VO80LA1K/63R1-NZG05F021
R902101178 A8VO107LA0KH1/63R1-NZG05K020
R902134553 A8VO140EP2/63R1-NZG05F171H
R902101216 A8VO107LA1KH3/63R1-NZG05K070
R902134844 A8VO107LA0KH3/63R1-NZG05F011
R902101290 A8VO55LA0K/61R1-NZG05F011
R902138222 A8VO107LA0KH3/63R1-NZG05F001
R902101389 A8VO80LA0K/63R1-NZG05F011
R902138266 A8VO107LA0K/63R1-NZG05F001
R902101396 A8VO107LA1H2/63R1-NZG05F074
R902149479 A8VO107LA1KH1/63R1-NZG05K010 E
R902155515 A8VO107LA0K/63R1-NZG05F021