Rexroth Hydraulic Pump A4vgt90 From China for Use in Roller

Rexroth Hydraulic Pump A4vgt90 From China for Use in Roller

CZPT CZPT pump A4VGT90 from china for use in roller

Concrete mixer hydraulic piston pump A4VTG71, A4VGT90

Description  

Shut circuit
Collection 32
Measurements seventy one, ninety
Nominal pressure 5800 psi (four hundred bar)
Optimum pressure 6500 psi (450 bar)
Manage gadget: (HW) Proportional manage hydraulic, mechanical servo, hexagon shaft with lever to the rear.
(EP) Proportional control electric, with emergency actuation and spring return.
 
For the drum generate in mobile concrete mixers A4VTG071, A4VGT090 sequence.
-Variable axial piston pump of swash plate style for hydrostatic drives in shut circuit
-The flow is proportional to the generate velocity and displacement.
-The circulation increases as the angle of the swash plate is altered from zero to its maximum benefit.
-Circulation direction modifications effortlessly when the swash plate is moved by means of the neutral position.
-Two strain-relief valves are provided on the large force ports to defend the hydrostatic transmission (pump and motor) from overload.
-The large-strain relief valves also purpose as increase valves.
-The built-in increase pump acts as a feed pump and manage pressure source.
-The greatest enhance stress is restricted by a constructed-in improve force-reduction valve.
-Tapered shaft choice for direct drive shaft yoke installation.
 
CZPT Data 
Desk of values (theoretical values, without efficiency and tolerances values rounded)

CZPT A4VTG A4VTG71 A4VTG90
Displacement
 
Variable pump Vg max cm3 seventy one 90
auxiliary pump Vg H cm3 18,seven twenty five,7
Speed
 
 
 
Max. velocity at Vg max Nmax ongoing rpm 3300 3050
Restricted max. Nmax constrained rpm 3600 3300
Intermittent max. Nmax ongoing rpm 4100 3800
minimum pace Nmin rpm five hundred five hundred
Circulation at Nmax Dauer and Vg max Qmax L/min 234 275
Electrical power at Nmax Dauer D p = four hundred bar Pmax kW 156 183
Torque at Vg max      D p = 400 bar CZPT Nm 451 572
(Variable pump without having aux. pump)  D p = 100 bar T Nm 112,eight 143
Moment of inertia (about travel axis) J kgm2 ,0072 ,5716

 

Rexroth Hydraulic Pump A4vgt90 From China for Use in Roller