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| Type: | |
|---|---|
| spare parts avaliable: | |
| Quantity: | |
A28VO
Xeriwell or Others
Rexroth A28VO Axial Piston Variable Double Pump - Series 10 is variable axial piston double pump of swashplate design for hydrostatic drives in open circuit. Thesepumps provide high efficiency and high power density due to increased pressure level, used in various applications such as agricultural machinery, construction
machinery, industrial machinery and marine equipment. With one common suction portand two pressure ports, the are used preferably in excavators.
A28VO pump is a perfect solution for most demanding applications, because they produce low noise and excellent power density. The
A28VO pump is designed in asize of 130, with a nominal pressure of 380 bar and a maximum pressure of 420 bar. Their flowis proportional to the drive speed and displacement, which can beinfnitely varied by adjusting the swashplate angle.
These pumps have special control devices program for mobile applications, with different control and regulation functions. They come in a compact design, whichhelps to install these pumps in a limited space. They also has a power controller that helps to combine two separate pump circuits, offering flexibility and optimalpower distribution between the two circuits.
Features:
1) Variable axial piston double pump of swashplate design for hydrostatic drives in open circuit.
2) For use preferably in mobile applications eg. excavator.
3) Flow is proportional to the drive speed and displacement.
4) The flow can be infinitely varied by adjusting the swashplate angle.
5) One common suction port, two pressure ports.
6) Special control devices program for mobile applications, with different control and regulation functions.
7) Compact design for limited installation space
8) High efficiency
9) High power density due to increased pressure level
10) Low noise level
Type: A28VO130
Rexroth A28VO 130/280 Hydraulic Pump spare parts list:
| Size | NG | 280 | |||
| Displacement,geometric,per revolution by rotary group | Vg max | cm3 | 280 | ||
| Vg min | cm3 | 0 | |||
| Maximum rotation-al speed1) | at Vg max2) | nnom | rpm | 1900 | |
| at Vg≤ Vg max3) | nmax | rpm | 1900 | ||
| Flow | at nnomand Vg max | qv | L/min | 2 × 532 | |
| Power | at nnom,Vg maxand ∆p = 350 bar | P | kW | 2 × 310 | |
| Torque | at Vg maxand ∆p = 350 bar2) | T | Nm | 2 × 1560 | |
| Rotary stiffness drive shaft | 2 1/4 in 17T 8/16DP | T3 | c | kNm/rad | 519 |
| W60x2x28x9g | A4 | c | kNm/rad | 645 | |
| Moment of inertia rotary group | JTw | kgm2 | 0.198 | ||
| Maximum angular acceleration4) | α | rad/s2 | 4200 | ||
| Case volume | V | L | 9.5 | ||
| Weight (without through drive) approx. | m | kg | 305 | ||
| Determining the operating characteristics | ||||
| Flow | qv= | Vg× n × ηv | [l/min] | |
| 1000 | ||||
| Torque | T= | Vg× ∆p | [Nm] | |
| 20 × π × ηhm | ||||
| Power | P= | 2 π × T × n | qvx △p | [kW] |
| 60000 | 600xnt | |||
| Key | ||||
| Vg | = | Displacement per revolution [cm3] | ||
| ∆p | = | Differential pressure [bar] | ||
| n | = | Rotational speed [rpm] | ||
| ηv | = | Volumetric efficiency | ||
| ηhm | = | Hydraulic mechanical efficiency | ||
| ηt | = | Total efficiency (ηt= ηv× ηhm) | ||
