Rexroth A4vg Hydraulic Pump for Sumitomo Excavator

CZPT A4VG PUMP

 
CZPT A4VG hydraulic pump for SUMITOMO CZPT
 
CZPT variable displacement axial pump A4VG40, A4VG56, A4VG71, A4VG90, A4VG125, A4VG180, A4VG250

Description  

Series 32
Nominal stress 400 bar
Peak strain 450
Manage unit: NV, HD3, HW, DG, DA1, DA2, EP3, EP4, EZ1, EZ2
 
The A4VG axial piston variable pump in swash plate design and style for hydrostatic shut circuit transmissions
– Movement is proportional to drive speed and displacement and is infinitely variable
– Output stream increases with the swivel angle of the swash plate from to its optimum value
– Stream route changes smoothly when the swash plate is moved by means of the neutral place
– A wide range of hugely adaptable manage devices is offered for diverse manage and regulating functions
– The pump is geared up with two pressure-relief valves on the large strain ports to defend the hydrostatic transmission (pump and motor) from overload
– The higher-force reduction valves also function as improve valves
– The built-in boost pump functions as a feed and manage oil pump
– The maximum enhance stress is minimal by a constructed-in enhance strain reduction valve
– The integral strain reduce-off is CZPT

CZPT Data 
Desk of values (theoretical values, without performance and tolerances values rounded)

Dimensions A4VG40 A4VG56 A4VG71 A4VG90 A4VG125 A4VG180 A4VG250
Displacement
variable pump
Vg max cm3 40 56 seventy one ninety 125 180 250
increase pump (20 bar) Vg Sp cm3 eight.six 11.six 19.six 19.six 28.three 39.eight 52.5
Speed
highest Vg max
conti.  rpm 4000 3600 3300 3050 2850 2500 2400
restricted maximum minimal rpm 4200 3900 3600 3300 3250 2900 2600
intermittent max. Min. rpm 5000 4500 4100 3800 3450 3000 2700
nmin rpm five hundred five hundred five hundred five hundred 500 five hundred 500
Stream
steady and Vg max
l/min 160 202 234 275 356 450 600
Electrical power
steady Vg max
400 bar kW 107 134 156 183 237 three hundred 400
Torque
at Vg max
400 bar Nm 255 356 451 572 795 1144 1590
a hundred bar Nm 63.5 89 112.eight 143 198.eight 286 398
Moment of inertia JGR kgm2 .0038 .0066 .0097 .0149 .5712 .0444 .0983
Angular acceleration α rad/s2 30000 24000 21000 18000 14000 11000 6700
Filling ability V L one.1 1.five 1.three one.five two.one three.one 6.3
Excess weight approx. m kg 31 38 fifty sixty eighty a hundred and one 156

 

Rexroth A4vg Hydraulic Pump for Sumitomo Excavator