Mixer Hydraulic System Hydraulic Piston Pump A4vtg71hw

Model NO.
A4VTG71hw
Origin
China
Production Capacity
500000 Pieces
Reference Price
Please contact us for quote
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Product Description

Mixer Hydraulic System Hydraulic Piston Pump  A4vtg71hw


Elephant Fluid Power  offers the brand new Rexroth A4VTG71 A4VTG71HW series piston pumps, our products are 100% compatible with the original Rexroth. A4VTG71 series can be used for the production, repair, refurbishment and maintenance of concrete mixer trucks,Besides,Widely applicable for agricultural machinery, engineering machinery, mining machinery,industrial machinery, aviation and transport machinery etc.

 
Concrete mixer hydraulic piston pump A4VTG71, A4VTG71HW
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.
Application concrete mixer truck,agricultural machinery, engineering machinery, mining machinery,industrial machinery, aviation and transport machinery

 

 

 

For the drum drive in mobile concrete mixers A4VTG071HW series.

  • 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



Mixer Hydraulic System Hydraulic Piston Pump A4vtg71hw

 

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


 

 

Plunger Pump

PNEUTEC.IT, 2023