Hydraulic Piston Pump A10VSO Series Pumps A10VSO18 A10VSO28 A10VSO45 A10VSO71 A10VSO100 A10VSO140 A10VSO18DR/31R-VSC12N00
▶ Size 18 (A10VSO)
▶ Sizes 28 to 140 (A10VO)
▶ Nominal pressure 280 bar
▶ Maximum pressure 350 bar
▶ Open circuit
▶ Variable pump with axial piston rotary group in swashplate design for hydrostatic drives in open circuit.
▶ The flow is proportional to the drive speed and displacement.
▶ The flow can be infinitely varied by adjusting the swashplate angle.
▶ 2 drainports
▶ Excellent suction performance
▶ Low noise level
▶ Long service life
▶ Favorable power/weight ratio
▶ Versatile controller
range
▶ Short control time
The A10VSO series is swashplate-type axial piston variable pump specially engineered for open-circuit hydrostatic transmission systems. Flow output is linearly proportional to drive speed and geometric displacement; stepless flow regulation is realized by adjusting swashplate tilt angle. It features compact structure, high power density, ultra-low noise, long service life and comprehensive control modules, widely adopted in mobile machinery and industrial high-pressure hydraulic systems.

- Nominal continuous working pressure: 280 bar (4060 PSI)
- Peak instantaneous pressure: 350 bar (5075 PSI)
- Full range displacement sizes: 18 / 28 / 45 / 71 / 100 / 140 cm³/rev
- Main series version: Series 31R, Series 52R
| Size Model |
Max Displacement (cm³/rev) |
Rated Speed (rpm) |
Max Permissible Speed (rpm) |
Max Output Flow (L/min @1800rpm) |
Max Drive Power (kW @280bar) |
Weight (kg) |
| A10VSO18 |
18 |
1500 |
2400 |
32.4 |
25 |
12 |
| A10VSO28 |
28 |
1500 |
2300 |
50.4 |
39 |
18 |
| A10VSO45 |
45 |
1500 |
2200 |
81.0 |
63 |
27 |
| A10VSO71 |
71 |
1500 |
2100 |
127.8 |
99 |
42 |
| A10VSO100 |
100 |
1500 |
2000 |
180.0 |
140 |
58 |
| A10VSO140 |
140 |
1500 |
1900 |
252.0 |
196 |
76 |
Universal Application Scenarios
- Construction machinery: Excavators, loaders, road rollers, concrete pump trucks, bulldozers
- Mining equipment: Underground hydraulic drill rigs, mine transport vehicles, hydraulic support stations
- Industrial hydraulic: Hydraulic presses, injection molding machines, metal cutting equipment, offshore marine hydraulic units
- Agricultural machinery: Large tractors, harvesters, agricultural hydraulic drive systems
- Special vehicles: Sanitation trucks, aerial work platforms, tunnel boring auxiliary power units
| Complete Pump Model |
R-Part Material Number |
Control Type |
Series |
| A10VSO100DR/31R-PPB12N00 |
R902484405 |
DR Constant Pressure |
31R |
| A10VSO100DFR/31R-PPB12N00 |
R902484406 |
DFR Load Sensing |
31R |
| A10VSO100DFLR/31R-VPA12N00 |
R902484407 |
DFLR Proportional |
31R |
| A10VSO100DR/52R-VSC62N00 |
R902564400 |
DR Constant Pressure |
52R |
| A10VSO100DFR/52R-VSC62N00 |
R902564401 |
DFR Load Sensing |
52R |
Packaging & After-Sales Service
- Standard packing: Anti-rust oil treatment + plastic waterproof film + export wooden case
- Warranty period: 12 months from delivery date
- Supporting service: Custom control modification, tandem combined pump assembly, spare rotary group parts supply, technical parameter matching consultation
- Delivery cycle: Standard models in stock within 3–7 working days, customized versions 15–25 working days