Mixer Hydraulic System Hydraulic Piston Pump Rexroth A4vtg71/A4vtg71hw

• Type: Piston Pump Parts
• Warranty: 1 Year
• Transport Package: Carton Boxes
• Model NO.: A4VTG71
• Trademark: elephant fluid power
• Origin: China
• HS Code: 8413503190
• Production Capacity: 100000/PCS

Product Description

 

 

Mixer hydraulic system hydraulic piston pump Rexroth A4VTG71/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, 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.
Application	concrete mixer truck,agricultural machinery, engineering machinery, mining machinery,industrial machinery, aviation and transport machinery

 

 

 

For the drum drive in mobile concrete mixers A4VTG071, A4VGT090 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

 

 

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