REXROTH A4VG HYDRAULIC PUMP REPLACEMENT | A4VG
Rexroth A4VG Hydraulic Pump Replacement
- Application: Replacement for Rexroth
- MOQ: 1 PCS
- Customization: Labels and logo
- Delivery: 7-15 working days
- Warranty: 6-12 months
- Certifications: ISO 9001 / CE
|
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 |
|||
The Rexroth A4VG is a variable displacement axial piston pump designed for closed-loop hydrostatic transmission systems.
It is widely used in excavators, road machinery, agricultural equipment, mining machines and other mobile hydraulic applications.
Hydstar supplies high-quality aftermarket replacements engineered for reliable performance and OEM interchangeability.
Excavators
Wheel Loaders
Crawler Drills/ Pile Drivers
Cranes (Crawler / Rough Terrain )
Crushers
Concrete Pumps
30+ Years Manufacturing Experience
23000㎡ Production Facility
ISO9001 Certified
160+ Countries Served
350,000 Units Monthly Capacity
100% Tested Before Shipment
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Don't hesitate to contact us. HYDSTAR HYDRAULIC experts are very happy to help you, provide a variety of flexible and reliable solutions to help you solve various problems.
