Rexroth Liebher 512228114 11347323 5122 281 A4VG105 A4VG125 A4VG140 A4VG250 A4VG180 Hydraulic Piston Pump
Features
Variable axial piston pump of swashplate design for hydro- -
static drives in closed circuit.
The flow is proportional to the drive speed and displacement. -
The flow can be infinitely varied by adjusting the swashplate -
angle.
Flow direction changes smoothly when the swashplate is -
moved through the neutral position.
A wide range of highly adaptable control devices with -
different control and regulating functions, for all important
applications.
Two pressure-relief valves are provided on the high-pressure -
side to protect the hydrostatic transmission (pump and mo-
tor) from overload.
The high-pressure relief valves also function as boost valves. -
The integrated boost pump acts as a feed pump and control -
pressure supply.
The maximum boost pressure is limited by a built-in low- -
pressure relief valve.
As standard with integrated pressure cut-off
Rexroth A4VG40/56/71/90/125/180/250 Hydraulic Piston Pump
We produce Rexroth Axial Piston Variable Pump Model: A4VG40, A4VG28, A4VG56, A4VG71, A4VG90, A4VG125, A4VG180, A4VG250 RexrothA4VG charge pump, Liebher 512228114 11347323 5122 281 14 Hydraulic A4VG125, A4VG180, A4VG250 Pump
Features below:
1. Variable axial piston pump of swash plate design for hydrostatic closed circuit transmissions
2. Flow is proportional to drive speed and displacement and is infinitely variable
3. Output flow increases with the swivel angle of the swash plate from 0 to its maximum value
4. Flow direction changes smoothly when the swash plate is moved through the neutral position
5. A wide range of highly adaptable control devices is available for different control and regulating functions
6. The pump is equipped with two pressure-relief valves on the high pressure ports to protect the hydrostatic transmission
(pump and motor) from overload
7. The high-pressure relief valves also function as boost valves
8. The integrated boost pumps acts as a feed and control oil pump
9. The maximum boost pressure is limited by a built-in boost pressure relief valve
10. The integral pressure cut-off is standard
Size |
A4VG40 |
A4VG56 |
A4VG71 |
A4VG90 |
A4VG125 |
A4VG180 |
A4VG250 |
Displacement variable pump |
Vg max |
cm3 |
40 |
56 |
71 |
90 |
125 |
180 |
250 |
boost pump (20 bar) |
Vg Sp |
cm3 |
8.6 |
11.6 |
19.6 |
19.6 |
28.3 |
39.8 |
52.5 |
Speed maximum Vg max |
conti. |
rpm |
4000 |
3600 |
3300 |
3050 |
2850 |
2500 |
2400 |
limited maximum |
limited |
rpm |
4200 |
3900 |
3600 |
3300 |
3250 |
2900 |
2600 |
intermittent max. |
Min. |
rpm |
5000 |
4500 |
4100 |
3800 |
3450 |
3000 |
2700 |
nmin |
rpm |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
Flow continuous and Vg max |
l/min |
160 |
202 |
234 |
275 |
356 |
450 |
600 |
Power continuous Vg max |
400 bar |
kW |
107 |
134 |
156 |
183 |
237 |
300 |
400 |
Torque at Vg max |
400 bar |
Nm |
255 |
356 |
451 |
572 |
795 |
1144 |
1590 |
100 bar |
Nm |
63.5 |
89 |
112.8 |
143 |
198.8 |
286 |
398 |
Moment of inertia |
JGR |
kgm2 |
0.0038 |
0.0066 |
0.0097 |
0.0149 |
0.0232 |
0.0444 |
0.0983 |
Angular acceleration |
α |
rad/s2 |
30000 |
24000 |
21000 |
18000 |
14000 |
11000 |
6700 |
Filling capacity |
V |
L |
1.1 |
1.5 |
1.3 |
1.5 |
2.1 |
3.1 |
6.3 |
Weight approx. |
m |
kg |
31 |
38 |
50 |
60 |
80 |
101 |
156 |
We could supply the rexroth hydraulic pump and motor, also the inner spare parts as below model:
1 A8VO: A8VO55,A8VO80,A8VO107,A8VO160
2,A2FO: A2FO5 A2FO10 A2F12 A2FO16 A2FO23,A2FO28,A2FO32,A2FO45,A2FO56,A2FO63 A2FO80
3,A4VSO: A4VSO40,A4VSO45,A4VSO56,A4VSO71,A4VSO125,A4VSO180,A4VSO250,A4VSO500,
4,A4VG: A4VG28,A4VG45,A4VG50,A4VG56,A4VG71,A4VG125,A4VG180,A4VG250
5,A6V: A6V55,A6V80,A6V107,A6V160,A6V225,A6V250
6,A7V: A7V16,A7V28,A7V55,A7V80,A7V107,A7V160,A7V200,A7V250
7,A8V: A8V55,A8V80,A8V107,A8V115,A8V172
8,A10VSO: A10VSO10,A10VSO18 A10VSO28,A10VSO43,A10VSO45,A10VSO71,A10VSO100,A10VSO140
9,A10VD: A10VD17,A10VD21,A10VD28,A10VD43,A10VD71
10,A11V: A11V50 A11V90 A11V130,A11V145 A11V160,A11V190,A11V250
11,PVV,PV7: PV2.PVV4.PVV5.PVV21.PVV41.PVV42.PVV51.PVV52.PVV54,PV7-1X,PV7-2X
12,PGF,PGH,PGP: GF1-2X,PGF2-2X,PGF3-3X,PGH2-2X,PGH3-2X,PGH4-2X,PGH5-2X,PGP2-2X,PGP3-3X
13 Others: AP2D21,AP2D25,AP2D36,AP2D38
Sauer 90R55 90R100 Hydraulic Piston Pump For Paver, 90R100 Oil Pump For Sales
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hatachi
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