news

Rexroth piston pump A4VSO, A10VSO series specifications

Specifications of Rexroth Piston Pump A4VSO and A10VSO Series

The following are the key technical specifications of Rexroth A4VSO and A10VSO series axial piston variable pumps, which are widely used in industrial hydraulic systems for their high efficiency, low noise and reliable performance.

1. Rexroth A4VSO Series Specifications

The A4VSO series is an axial piston variable pump with a swashplate design, suitable for open-circuit hydrostatic drives. Its flow rate can be infinitely adjusted by changing the swashplate angle, featuring excellent suction performance and a modular structure.
Model (Nominal Size)
Maximum Displacement (cm³/rev)
Nominal Pressure (bar)
Maximum Pressure (bar)
Maximum Speed (rpm)
Maximum Flow (l/min)
Approximate Weight (kg)
A4VSO71
71
350
450
2200
156
53
A4VSO125
125
350
450
1800
225
88
A4VSO180
180
350
450
1800
324
102
A4VSO250
250
350
450
1500
375
184
A4VSO355
355
350
450
1500
533
A4VSO500
500
350
450
1320
660
A4VSO750
750
350
450
1000
750
A4VSO1000
1000
350
450
1000
1000
Note: The parameters are theoretical values without considering efficiency and tolerances, and there may be slight differences in different series (10, 11, 30). It is suitable for mineral oil and HF hydraulic fluids, with optional installation positions.

2. Rexroth A10VSO Series Specifications

The A10VSO series is a universal medium-pressure axial piston variable pump, characterized by low noise, high reliability and strong flexibility, widely used in industrial hydraulic fields. It is also designed with a swashplate structure for open-circuit operation.
Model (Nominal Size)
Maximum Displacement (cm³/rev)
Nominal Pressure (bar)
Maximum Pressure (bar)
Maximum Speed (rpm)
Maximum Flow (l/min)
A10VSO18
18
280
350
3300
59
A10VSO28
28
280
350
3000
84
A10VSO45
45
280
350
2600
117
A10VSO71
71
280
350
2200
156
A10VSO100
100
280
350
2000
200
A10VSO140
140
280
350
1800
252
A10VSO180
180
280
350
1800
324
Note: The parameters are applicable to standard versions. The series supports through drive for mounting additional pumps of the same nominal size, and is compatible with mineral oil and HF hydraulic fluids. The flow rate is proportional to the drive speed and displacement.

3. Common Features of Both Series

  • Design: Axial piston swashplate design, variable displacement.
  • Circuit Type: Open circuit for hydrostatic drives.
  • Performance: Low noise level, excellent suction characteristics, long service life.
  • Control: Short control response time, various control modes available (pressure control, flow control, etc.).
  • Compatibility: Suitable for mineral oil and most HF fire-resistant hydraulic fluids.