A4vtg90 Hydraulic Piston Pump for Combine Harvester

• After-sales Service: 24 Hours Online
• Warranty: 1 Year
• Structure: Axial Piston Pump
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: A4VTG90
• Cylinder Number: Single Cylinder
• Drive Mode: Hydraulic Driven Reciprocating Pump
• Pump Shaft Position: Horizontal
• Type: Axial
• Power: Hydraulic
• Straight Shaft Swashplate Piston Type: Pressureoil
• Radial Plunger Pump Type: Hydraulic Piston Pump
• Original: Yes
• Model: A4vtg
• Application: Construction Machinery
• Color: Customized
• Transport Package: Wooden Case for Export
• Specification: hydraulic
• Trademark: FOCOR
• Origin: China
• HS Code: 8413503190
• Production Capacity: 2000 Sets/Month
• Package Size: 40.00cm * 50.00cm * 60.00cm
• Package Gross Weight: 55.000kg

Product Description

A4VTG90 Hydraulic piston Pump for Combine Harvester

 

Product Description

Brueninghaus Hydromatik Rexroth A4VTG 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.
 
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. 
 

Product Parameters

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

 

Details model of Rexroth A4VTG71 & Rexroth A4VTG90 pump
R902132673   A4VTG071HW100/33MLNC4C82F0000AS-0	R902069484   A4VTG90EP2/32L-NZD10N001EW-S
R902132671   A4VTG071HW100/33MRNC4C82F0000AS-0	R902071852   A4VTG71EP2/32R-NLD10F001ST-S
R902155546   A4VTG090HW100/33MRNC4C92F0000AS-0	R902072877   A4VTG90EP2/32R-NSD10F011ST-S
R902155618   A4VTG090HW100/33MRNC4C92F0000AS-0	R902072914   A4VTG71EP2/32L-NSD10F001SX-S
R902155547   A4VTG090HW100/33MLNC4C92F0000AS-0	R902074155   A4VTG71EP1/32R-NLD10F001SGT-S
R902061570   A4VTG90EZ1/32L-NSD10F071SH-S	R902074168   A4VTG71HW/32R-NSD10F011S
R902061572   A4VTG71EZ1/32L-NXD10F071SH-S	R902074373   A4VTG71EP1/32R-NSD10F001ST-S
R902061573   A4VTG71EZ1/32L-NXD10F001SH-S	R902074403   A4VTG90EP2/32R-NLD10F011ST-S
R902062961   A4VTG90EP1/32L-NZD10K021EW-S	R902074406   A4VTG90EP2/32L-NLD10F001ST-S
R902085645   A4VTG90EZ1/32L-NZD10F021SH-S	R902074408   A4VTG90EP2/32R-NSD10F011SGT-S
R902064251   A4VTG71EP2/32L-NXD10F001SH-S	R902077977   A4VTG71HW/32R-NLD10F021S-K
R902084560   A4VTG71EP2/32L-NZD10K021EP-S	R902079554   A4VTG71EP2/32L-NXD10F021SH-S
R902064721   A4VTG71EP2/32R-NLD10F001SGT-S	R902079556   A4VTG71EP1/32R-NLD10F001ST-S
R902064723   A4VTG90EP2/32R-NLD10F001SGT-S	R902079583   A4VTG90HW/32R-NSD10F001S-S
R902066191   A4VTG90HW/32L-NSD10F001S-S	R902079590   A4VTG71EP2/32L-NZD10K021EP-S
R902066730   A4VTG90EP2/32R-NLD10F011SGT-S	R902079597   A4VTG71EP2/32L-NZD10K021EP-SK
R902066731   A4VTG90EP2/32L-NLD10F011SGT-S	R902079762   A4VTG71EP2/32R-NSD10F011ST-S
R902066732   A4VTG71EP2/32L-NLD10FXX1SGT-S	R902079857   A4VTG90EP2/32L-NLD10F011ST-S
R902068067   A4VTG90EZ1/32L-NZD10F011SH-S	R902079888   A4VTG90HW/32R-NLD10F001S
R902068087   A4VTG90EZ1/32L-NSD10FXX1SH-S	R902079961   A4VTG71HW/32R-NLD10F001S
R902068090   A4VTG90EP2/32R-NLD10F001ST-S	R902081370   A4VTG90EP2/32R-NSD10F001ST-S
R902068121   A4VTG90HW/32L-NLD10F001S	R902083530   A4VTG90HW/32L-NLD10F001S
R902068451   A4VTG71EP2/32L-NSD10F001SW-S	R902083968   A4VTG71EP2/32L-NZD10K021EP-S
R902069445   A4VTG71EP2/32L-NZD10K021EW-S

Detailed Photos

 

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