Mixer hydraulic system hydraulic piston pump Rexroth A4VTG71/A4VTG71HW
Elephant Fluid Power offers Rexroth A4VTG71 A4VTG71HW series piston pumps, A4VTG71 series can be used for the production, repair, refurbishment and maintenance of concrete mixer trucks,our products are 100% interchangeble with Rexroth,Besides,Widely applicable for agricultural machinery, engineering machinery, mining machinery,industrial machinery, aviation and transport machinery etc.
A4VTG071, A4VGT090 series Hydraulic Pump:
| Concrete mixer hydraulic piston pump A4VTG71, A4VGT90 |
| Description | Closed circuit |
| Series 32 | Sizes 71, 90 |
| Nominal pressure | 5800 psi (400 bar) |
| Maximum pressure | 6500 psi (450 bar) |
| Control device: | (HW) Proportional control hydraulic, mechanical servo, hexagon shaft with lever to the rear. |
| | (EP) Proportional control electric, with emergency actuation and spring return. |
| Appliion | concrete mixer truck,agricultural machinery, engineering machinery, mining machinery,industrial machinery, aviation and transport machinery |
- Variable axial piston pump of swash plate design for hydrostatic drives in closed circuit
- The flow is proportional to the drive speed and displacement.
- The flow increases as the angle of the swash plate is adjusted from zero to its maximum value.
- Flow direction changes smoothly when the swash plate is moved through the neutral position.
- Two pressure-relief valves are provided on the high pressure ports to protect the hydrostatic transmission (pump and motor) from overload.
- The high-pressure relief valves also function as boost valves.
- The integrated boost pump acts as a feed pump and control pressure supply.
- The maximum boost pressure is limited by a built-in boost pressure-relief valve.
- Tapered shaft option for direct drive shaft yoke installation.
Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
| Rexroth A4VTG | A4VTG71 | A4VTG90 |
| Displacement | Variable pump | Vg max | cm3 | 71 | 90 |
| auxiliary pump | Vg H | cm3 | 18,7 | 25,7 |
| Speed | Max. speed at Vg max | Nmax continuous | rpm | 3300 | 3050 |
| Limited max. | Nmax limited | rpm | 3600 | 3300 |
| Intermittent max. | Nmax continuous | rpm | 4100 | 3800 |
| minimum speed | Nmin | rpm | 500 | 500 |
| Flow | at Nmax Dauer and Vg max | Qmax | L/min | 234 | 275 |
| Power | at Nmax Dauer D p = 400 bar | Pmax | kW | 156 | 183 |
| Torque | at Vg max D p = 400 bar | Tmax | Nm | 451 | 572 |
| (Variable pump without aux. pump) D p = 100 bar | T | Nm | 112,8 | 143 |
| Moment of inertia (about drive axis) | J | kgm2 | 0,0072 | 0,0106 |
Besides, we can also provide spare parts for other models of Concrete Pump Truck and Concrete Mixer Truck:
- Rexroth A4VTG90/A2FM80/A2FM90/A2FM63/A10VO28/A2FO32/A2FO23 Main Pump or Boom Pump
- Eaton 6423/6433/5423/5433/4623/4633 Main pump
- Sauer PV089 90R100 PV23 PV22 MF23 MF22 Hydraulic Pump
- Reducer PMP 7.1R 130/6.5R 120/P90 P68 580L, TM61.2/TM71.2 P3301,PMHP110/PMHM110/PMHP90/PMHM90
Competitive Advantage
- 100% replace with Original
- Fast delivery time
- Top quality with good price
- Professional technicians and After-sales service
- Complete models Available
Our other main business:
| Hydraulic piston pump and spare parts | Hydraulic vane pump and spare parts |
| Hydraulic piston motor and spare parts | Hydraulic orbital motor |
| Hydraulic steering unit | Hydraulic gear pump |
| Directional control valve |
Why chose us:
| Quality : | High quality |
| Price : | Very competitive |
| Servicvs : | The best |
| Delivery : | Fast delivery |
Our company Elephant Fluid Power Technical team has many years of operation and service experience,Provide customers with professional hydraulic system solutions,Quality assurance of quality products, fixed sales engineer, agreement specific delivery period,Years of industry experience, sales, repairs, commissioning, maintenance,Super fast one-stop professional service,Provide technical response within 2 hours of standard warranty,Effectively guarantee the quality of hydraulic products,Worry-free delivery time 1300 kinds in stock,One-stop service.
We are looking for good long business partner and friendship.
If you are interested in our products, please contact me.I'll give you a favorable quotation.
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