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The A4VG axial piston variable pump in swash plate design for hydrostatic closed circuit transmissions.
Hydraulic variable displacement axial pump A4VG40, A4VG56, A4VG71, A4VG90, A4VG125, A4VG180, A4VG250
Technical Parameters
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 |
Rexroth A4VG Series Hydraulic Pump are widely used in hydraulic systems of various industries such as lifting machinery, engineering machinery, metallurgy, mining, shipbuilding, forging press, etc.
Jinan Focor Machinery Co., Ltd (Hydraulic Department) established strategic cooperation with other China manufacturers, covering mining, mineral transaction, construction and agriculture machinery, spare parts and service. Not only can we export the above products, but we can also customize OEM brand products for our customers.
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