Rexroth Hydraulic Pump A4vtg71 From China for Use in Roller

Rexroth Hydraulic Pump A4vtg71 From China for Use in Roller

CZPT CZPT pump A4VTG71 from china for use in roller

Concrete mixer hydraulic piston pump A4VTG71, A4VGT90

Description  

Closed circuit
Collection 32
Sizes 71, ninety
Nominal force 5800 psi (400 bar)
Optimum strain 6500 psi (450 bar)
Handle gadget: (HW) Proportional management hydraulic, mechanical servo, hexagon shaft with lever to the rear.
(EP) Proportional control electrical, with unexpected emergency actuation and spring return.
 
For the drum drive in cell concrete mixers A4VTG071, A4VGT090 collection.
-Variable axial piston pump of swash plate style for hydrostatic drives in shut circuit
-The flow is proportional to the drive speed and displacement.
-The flow will increase as the angle of the swash plate is modified from zero to its optimum price.
-Circulation course alterations smoothly when the swash plate is moved by means of the neutral situation.
-Two stress-reduction valves are supplied on the higher pressure ports to shield the hydrostatic transmission (pump and motor) from overload.
-The higher-stress aid valves also purpose as enhance valves.
-The built-in enhance pump functions as a feed pump and manage stress supply.
-The greatest increase strain is minimal by a constructed-in improve force-relief valve.
-Tapered shaft choice for direct drive shaft yoke set up.
 
CZPT Data 
Desk of values (theoretical values, with out performance and tolerances values rounded)

CZPT A4VTG A4VTG71 A4VTG90
Displacement
 
Variable pump Vg max cm3 seventy one 90
auxiliary pump Vg H cm3 18,seven 25,7
Speed
 
 
 
Max. speed at Vg max Nmax steady rpm 3300 3050
Limited max. Nmax constrained rpm 3600 3300
Intermittent max. Nmax continuous rpm 4100 3800
least pace Nmin rpm 500 500
Circulation at Nmax Dauer and Vg max Qmax L/min 234 275
Electricity at Nmax Dauer D p = 400 bar Pmax kW 156 183
Torque at Vg max      D p = four hundred bar CZPT Nm 451 572
(Variable pump without having aux. pump)  D p = a hundred bar T Nm 112,8 143
Minute of inertia (about drive axis) J kgm2 ,0072 ,5716

 

Rexroth Hydraulic Pump A4vtg71 From China for Use in Roller