BOSCH Rexroth A4VG Series 40 Axial Piston Variable Pump
Features ▶ High power density owing to a very high pressure level ▶ Integrated auxiliary pump for boost and pilot oil supply ▶ Flow direction changes smoothly when the swashplate is moved through the neutral position ▶ High-pressure relief valves with integrated boost function ▶ With adjustable pressure cut-off as standard ▶ Boost-pressure relief valve ▶ Through drive for mounting of further pumps up to same nominal size ▶ High total efficiency ▶ Large variety of controls ▶ Swashplate design ▶ High-pressure pump for applications in a closed circuit up to 500 bar ▶ Size A4VG110 A4VG125 A4VG145 A4CG175 A4VG210 A4VG280 ▶ Nominal pressure 450 bar ▶ Maximum pressure 500 bar ▶ Closed circuit
|
Name |
A4VG Series Axial piston variable pump |
|
Series |
Series 32 |
|
Sizes |
28 40 56 71 90 125 180 250 |
|
Nominal Pressure |
400 bar |
|
Maximum Pressure |
450 bar |
|
Operation Mode |
Closed Circuit |
|
Size |
NG |
28 |
40 |
56 |
71 |
90 |
125 |
180 |
250 |
|||
|
Displacement |
Vg max |
cm3 |
28 |
40 |
56 |
71 |
90 |
125 |
180 |
250 |
||
|
boost pump (at p = 20 bar) |
Vg Sp |
cm3 |
6.1 |
8.6 |
11.6 |
19.6 |
19.6 |
28.3 |
39.8 |
52.5 |
||
|
Speed1) |
maximum at Vg max |
nnom |
rpm |
4250 |
4000 |
3600 |
3300 |
3050 |
2850 |
2500 |
2400 |
|
|
limited maximum2) |
nmax |
rpm |
4500 |
4200 |
3900 |
3600 |
3300 |
3250 |
2900 |
2600 |
||
|
intermittent maximum3) |
nmax |
rpm |
5000 |
5000 |
4500 |
4100 |
3800 |
3450 |
3000 |
2700 |
||
|
minimum |
nmin |
rpm |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
||
|
Flow at nnom and Vg max |
qv |
L/min |
119 |
160 |
202 |
234 |
275 |
356 |
450 |
600 |
||
|
Power4) Dp = 400 bar |
P |
kW |
79 |
107 |
134 |
156 |
183 |
238 |
300 |
400 |
||
|
Torqu4) |
Dp = 400 bar |
T |
Nm |
178 |
255 |
357 |
452 |
573 |
796 |
1146 |
1592 |
|
|
Dp = 100 bar |
T |
Nm |
45 |
64 |
89 |
113 |
143 |
199 |
286 |
398 |
||
|
Rotary stiffness drive shaft |
S |
c |
kNm/rad |
31.4 |
69 |
80.8 |
98.8 |
158.1 |
218.3 |
244.5 |
354.5 |
|
|
T |
c |
kNm/rad |
– |
– |
95 |
120.9 |
– |
252.1 |
318.4 |
534.3 |
||
|
A |
c |
kNm/rad |
– |
79.6 |
95.8 |
142.4 |
176.8 |
256.5 |
– |
– |
||
|
Z |
c |
kNm/rad |
32.8 |
67.5 |
78.8 |
122.8 |
137 |
223.7 |
319.6 |
624.2 |
||
|
U |
c |
kNm/rad |
– |
50.8 |
– |
– |
107.6 |
– |
– |
– |
||
|
Moment of inertia for rotary group |
JGR |
kgm2 |
0.0022 |
0.0038 |
0.0066 |
0.0097 |
0.0149 |
0.0232 |
0.0444 |
0.0983 |
||
|
Maximum angular acceleration5) |
a |
rad/s2 |
38000 |
30000 |
24000 |
21000 |
18000 |
14000 |
11000 |
6700 |
||
|
Case volume |
V |
L |
0.9 |
1.1 |
1.5 |
1.3 |
1.5 |
2.1 |
3.1 |
6.3 |
||
|
Mass approx. (without through drive) |
m |
kg |
29 |
31 |
38 |
50 |
60 |
80 |
101 |
156 |
||
|
Center of gravity6) |
X |
mm |
< 5 |
< 5 |
< 5 |
< 5 |
< 5 |
< 5 |
< 5 |
< 5 |
||
|
Y |
mm |
24 |
20 |
20 |
15 |
20 |
30 |
33 |
30 |
|||
|
Z |
mm |
105 |
112 |
106 |
135 |
145 |
160 |
180 |
203 |
|||
Hot Tags: bosch rexroth a4vg series 40 axial piston variable pump, China bosch rexroth a4vg series 40 axial piston variable pump manufacturers, suppliers, factory, KAYABA KP KFP Single Gear Pump, Hydraulic Motor, Staffa Motor Hydraulic Motor, MARZOCCHI Gear Pump, PARKER Hydraulic Motor, Swash Plate Type Axial Piston Pump
