A10VSO pump

A10VSO pump is a high-performance axial piston variable pump introduced by Rexroth, which is widely used in open hydraulic circuit system.

First, core features

1、Swash plate variable structure

Adopting swash plate axial plunger design, the flow rate can be adjusted steplessly by adjusting the inclination angle of swash plate to meet the dynamic load demand.

The plunger end is in contact with the sliding shoe, which reduces the friction and wear and prolongs the service life.

2、Efficient hydrostatic transmission

The transmission shaft has good axial and radial load capacity to ensure stable operation under high load conditions.

Volume efficiency ≥95%, high mechanical efficiency, reduce energy consumption.

3、Multi-control mode optional

Support constant pressure, constant flow, constant power and proportional flow control, adapt to different working conditions.

Short response time, high control accuracy, improve system dynamic performance.

4、Through-shaft drive and combined pump design

Can be combined with gear pumps or axial piston pumps of the same specification to form a multi-pump system and extend the application range.

Optimize the system layout and reduce space occupation.

Second, technical parameters

1、Displacement and speed

Displacement range: 10 to 140cm³/r (such as A10VSO18, A10VSO28, A10VSO45 and other models).

Rated speed: 500 to 3000rpm, the highest speed can reach 2600rpm.

2、Pressure and flow rate

Rated pressure: 28MPa (continuous), peak pressure 35MPa.

Maximum flow rate: Take A10VSO28 as an example, the flow rate can reach 74.6L/min (19.7GPM).

3、Efficiency and Noise

Volumetric efficiency: ≥95%, ensuring efficient energy conversion.

Noise level: low noise design, enhance the comfort of the working environment.

Third, Application Scenario

1、Engineering Machinery

Excavator: Drive the traveling and slewing mechanism to provide stable power output.

Concrete mixer/pump truck: realize mixing and pumping action, adapt to heavy-duty working conditions.

2、Industrial equipment

Injection molding machine: drive the hydraulic system to achieve mold opening and closing and injection action.

Die-casting machine/extruder: provide high pressure and precise control to ensure product quality.

3、Mining and metallurgy

Roadheader / coal mining machine: adapt to harsh environments, provide reliable power.

Rolling mill/continuous casting machine: realize high-precision hydraulic control, improve production efficiency.

Fourth, maintenance points about A10VSO pump

1、Fluid Management

Viscosity requirements: the viscosity of hydraulic fluid ranges from 10 to 400mm²/s (at 40℃), and HLP mineral oil is recommended.

Cleanliness requirements: According to ISO 4406 standard, cleanliness should be maintained at 20/18/15 level to prevent oil contamination.

Oil change cycle: Replace the hydraulic oil and filter element regularly to prolong the life of the pump body.

2、Component inspection and replacement

Bearing: Check the bearing clearance regularly and replace the worn parts to ensure precision and load capacity.

Plunger and cylinder: check the plunger clearance and cylinder wear, adjust or replace parts.

Distributor disk: check the wear and sealing of the distributor disk, grind or replace if necessary.

3、Operation monitoring

Oil temperature monitoring: normal working temperature 50 to 70℃, over 80℃ need to check the cooling system.

Pressure monitoring: Regularly check the pressure of high pressure side and low pressure side to prevent excessive pressure difference leading to component damage.

Vibration monitoring: Vibration is monitored by acceleration sensor, abnormal vibration may indicate bearing or gear failure.

Rexroth A10VSO series 31

A10VSO manual