Program Information Mobile Hydraulics, Mobile ... - ERGOVIAL

Variable Displacement Double Pump A8VO
Sizes 28…200
Axial tapered piston bent axis design
Series 6
Open circuits
Nominal pressure 350 bar
Peak pressure 400 bar
Variable displacement double
pump for machines with multicircuit
operation in the open circuit,
such as excavators, cranes,
drilling equipment, etc.
The range of control equipment
and the supplementary equipment
are tailored to the specific requirements.
Supplementary equipment:
U Integrated auxiliary pump with
pressure relief valve, optionally
with additional pressure reducing
valve
U Power take-off for mounting
gear pumps and axial piston
pumps
U Individual controller
U Overload control
U Power train
U Hydraulic stroke limiter
Detailed information:
A8VO RE 93 010
A7VO/A8VO RE 98 211
Size 28 55 80 107140 200
Displacement (per rotary group) Vg max cm 3
28,1 54,8 80 107 140 200
Speed 1) (i = 1) nmax rpm 2300 2)
2500 2240 2150 2100 2100
Flow at nmax qVmax L/min 2 x 88 2 x 137 2 x 179 2 x 230 2 x 294 2 x 420
Power �p1 + �p2 = 700 bar Pmax kW 72,5 3)
160 209 268 294 4)
350 3)
Torque �p1 + �p2 = 700 bar T max Nm 218 3)
611 891 1192 1337 4)
Weight (approx.) m kg 60 78 82 105 120 182
1) These values are valid at an absolute pressure of 1 bar in suction port S 2) i = 0,73 3) �p1 + �p2 = 500 bar (Sizes 28, 200) 4) �p1 + �p2 = 600 bar (Size 140)
SR
Summation power controller
(hyperbolic control),
size 28
p B1 + p B2
V g mi n
V g ma x
LA0
Individual power controller
(spring control),
sizes 55…200
p B1 + p B2
V g mi n
V g ma x
LA1
Individual power controller
with load limiting
control (spring control),
sizes 55…200
p B1 + p B2
V g mi n
V g ma x
p st
1592 3)
V g = Displacement
p B1 = Working pressure, 1st pump
p B2 = Working pressure, 2nd pump
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