Place of Origin:Germany,United States
Model Number:A4VG28 A4VG40 A4VG56 A4VG71DA1D7
A4VG90 A4VG125 A4VG180 A4VG250
Brand Name:Rexroth Replacement
Warranty:12 months
Condition:New
Delivery Time: 7-15days
Supply Ability: 10PCS in 7-10days
Origin:China
Minimum Order:1 Pieces
Sample:Contact us for free samples
Price:$1071.43-$1514.29
Infinitely Variable Flow: Flow rate directly correlates with drive speed and pump displacement, allowing for smooth adjustments.
Wide Flow Range: The pump can deliver flow from zero to its maximum capacity by varying the swash plate angle.
Reversible Flow Direction: Tilting the swash plate beyond the neutral position seamlessly reverses the fluid flow direction.
Flexible Control Options: The pump supports multiple control methods (NV, DG, EZ, HD, HW, EP, DA) for compatibility with diverse control and regulation systems.
Internal System Protection: Two integrated Relief valves on the high-pressure side safeguard the hydrostatic transmission (pump and motor) against excessive loads. Notably, the high-pressure relief valve also functions as an oil filling valve.
Integrated Auxiliary Pump: An internal auxiliary pump serves as both a Charge Pump and a control pump, simplifying the system design.
Built-in Pressure Relief: A dedicated charging relief valve limits the maximum charging pressure.
pressure shut-off valve: All models come equipped with an integrated pressure shut-off valve for additional system control.
Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
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 |
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