Axial piston variable pump a10vso

A10VSO is a swashplate-type axial piston variable displacement pump for open-circuit hydraulic systems, renowned for high power density, precise control, and reliability—ideal for mobile and industrial applications.

First, Core Specifications

1.Series & Displacement: 31 series (18/28/45/71/100/140 cm³/r); 32 series (45–180 cm³/r)

2.Pressure Ratings: Rated 280 bar; Peak 350 bar

3.Key Features: ISO standard mounting flange, through-drive capability, dual case drain ports, radial/axial load-bearing drive shaft

Second, Core Structure & Working Principle of Axial piston variable pump a10vso

1. Rotating Group: Drive shaft → cylinder block → plunger-slipper assemblies. Slippers ride on the swashplate via spherical joints; spring retainer plate keeps slippers sealed against the swashplate.

2. Swashplate & Servo Mechanism: Inclined swashplate forces plunger reciprocation. Servo cylinder/control valve adjusts swashplate angle via pilot pressure—angle↑=stroke↑=flow↑; angle 0=zero output.

3. Valve Plate: Distributes suction/discharge oil; precision-machined with wear-resistant coating to minimize internal leakage.

4. Regulator Block: Integrates pressure/flow/power control valves; pilot pressure signals trigger swashplate angle adjustment for load-sensing control.

5. Housing & Seals: Cast iron housing for rigidity/vibration damping; shaft lip seals, O-rings, gaskets prevent internal/external leakage.

Third, Key Performance Advantages

1.Excellent suction performance, anti-cavitation; low pressure pulsation and noise.

2.Fast response, high control accuracy, suitable for closed-loop and compound control.

3. High power density, long service life, extended maintenance intervals.

4. Versatile control options and through-drive for flexible system integration.

Fourth, Typical Applications

1.Mobile Hydraulics: Excavators, loaders, cranes, concrete pumps.

2.Industrial Hydraulics: Injection molding machines, die-casting machines, rolling mills, presses.

Fifth, Critical Maintenance & Operation Tips

1.Fluid Quality: Use clean hydraulic oil (NAS 8 class or better); replace oil and high-precision filters regularly.

2.Temperature Control: Maintain oil temperature at 30–55°C; avoid long-term operation above 60°C.

3.Installation & Commissioning: Ensure drive shaft alignment, torque specifications, and pilot pressure matching. Calibrate control parameters per manual.

4.Failure Prevention: Monitor pressure, temperature, noise, and leakage. Common issues: internal leakage (worn valve plate/slippers), swashplate sticking (contamination), bearing damage (insufficient lubrication).

Elephant Fluid Power Technical team has Worry-free delivery time 1300 kinds in stock, One-stop service, directly with the manufacturer, Provide complete hydraulic system solutions, Please contact us to purchase our products.

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