BOSCH REXROTH
R902122892
- BOSCH REXROTH
- Material:R902122892
- Model:AA4VG90HD3D1/32L-NSF52F071D
Due to extremely high demand, please call 877-366-7226 for availability
The Bosch Rexroth AA4VG90HD3D1/32L-NSF52F071D (R902122892) is a highly advanced axial piston variable pump designed for hydrostatic transmissions in closed circuits. This particular model is equipped with an integrated boost pump that serves the dual purpose of providing boost and pilot oil supply, ensuring consistent and reliable operation. The pump's design allows for smooth flow direction changes as the swashplate moves through its neutral position, which is critical for applications requiring precise control over movement and speed. One of the standout features of this Bosch Rexroth pump is its high-pressure relief valves, which come with an integrated boost function. These valves are essential for protecting the hydraulic system from pressure spikes, thereby enhancing the longevity and safety of the overall system. Additionally, the pump includes an adjustable pressure cutoff as a standard feature, offering users more control over their system's maximum operating pressure. Safety is further reinforced by the inclusion of a boost pressure relief valve, which acts as another layer of protection against excessive pressure build-up. The AA4VG90HD3D1/32L-NSF52F071D also boasts a through-drive capability that allows for the mounting of additional pumps up to the same nominal size, providing flexibility in configuring complex hydraulic systems. The versatility of this model is further extended by its large variety of controls options, allowing it to be tailored to specific application requirements. Built on a robust swashplate design, this Bosch Rexroth variable pump is suitable for demanding applications that require high efficiency and precision in controlling fluid power.
Table of values
|
Size |
28 | 40 | 56 | 71 | 90 | 125 | |||
|
Displacement |
Vg max |
cm³ |
28 | 40 | 56 | 71 | 90 | 125 | |
|
Nominal pressure |
pnom |
bar |
400 | 400 | 400 | 400 | 400 | 400 | |
|
Maximum pressure |
pmax |
bar |
450 | 450 | 450 | 450 | 450 | 450 | |
|
Maximum speed |
at Vg max |
nnom |
rpm |
4250 | 4000 | 3600 | 3300 | 3050 | 2850 |
|
Intermittent 1) |
nmax |
rpm |
5000 | 5000 | 4500 | 4100 | 3800 | 3450 | |
|
Flow |
at Vg max and nnom |
qV nom |
l/min |
119 | 160 | 202 | 234 | 275 | 356 |
|
Power |
at qV nom and Δpnom 2) |
P |
kW |
79 | 107 | 134 | 156 | 183 | 238 |
|
Torque |
at Vg max and Δpnom |
M |
Nm |
178 | 255 | 357 | 452 | 573 | 796 |
|
Weight (approx.) |
m |
kg |
29 | 31 | 38 | 50 | 60 | 80 | |
| 1) | At Δp = 70 … 150 bar or Δp < 300 bar and t < 0.1 s |
| 2) | Δpnom = 400 bar |