Program Information Mobile Hydraulics, Mobile ... - Bosch Rexroth AG
Program Information Mobile Hydraulics, Mobile ... - Bosch Rexroth AG
Program Information Mobile Hydraulics, Mobile ... - Bosch Rexroth AG
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24 Axial Piston Units<br />
1<br />
Variable Pump A4VTG<br />
Sizes 71...90<br />
Axial piston swashplate design<br />
Series 3<br />
Closed circuits<br />
Nominal pressure: 400 bar<br />
Peak pressure: 450 bar<br />
Special design for use in mobile<br />
concrete mixers<br />
Variable pump, reversible, all components<br />
integrated for closed circuits<br />
- For applications in the high pressure<br />
range up to 450 bar<br />
- Integrated auxiliary pump for<br />
boost and control oil supply<br />
- Combined boost and high-pressure<br />
relief valves<br />
- Boost pressure relief valve<br />
- Through drive possibility<br />
- Compact design<br />
Size 71 90<br />
Displacement Vg max cm³ 71 90<br />
Speed at Vg max nmax rpm 3300 3050<br />
Flow at nmax qVmax l/min 234 275<br />
Power Δp = 400 bar Pmax kW 156 183<br />
Torque Δp = 400 bar Tmax Nm 451 572<br />
Weight (approx.) m kg 46 48<br />
HW<br />
Hydraulic control,<br />
mechanical servo<br />
–Vg max<br />
+Vg max<br />
EP<br />
Electrical control,<br />
with proportional<br />
solenoid<br />
–Vg max<br />
I<br />
I<br />
+Vg max<br />
Detailed information:<br />
A4VTG RE 92012<br />
Vg = Displacement<br />
ß = Swivel angle<br />
I = Control current
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