A10VSO140DR/31R-PPB12N00 A10VSO140DRS/32R-VPB12N00 Rexroth hydraulic pump, original German plunger pump

A10VSO140DR/31R-PPB12N00 A10VSO140DRS/32R-VPB12N00 Rexroth hydraulic pump, original German plunger pump

FAQ:

A10VSO140 Hydraulic Pump FAQ

1. What is the A10VSO140?

The A10VSO140 is a variable displacement axial piston pump from the Rexroth A10VSO series. It features a swashplate design, allowing stepless flow adjustment by changing the swashplate angle. Its nominal displacement is 140 cm³/rev, making it suitable for high-power hydraulic systems in industrial and mobile applications.

2. What are the key features of the A10VSO140?

• Variable displacement: Adjusts flow based on system demand, improving energy efficiency.

• High pressure rating: Up to 280 bar (continuous) and 350 bar (peak).

• Multiple control options: Includes pressure compensation (DR), load sensing (DFLR), and constant pressure (DFR) models.

• Low noise and high efficiency: Designed for smooth operation in demanding environments.

• Modular design: Supports through-drive shafts for multi-pump systems.

3. Where is the A10VSO140 commonly used?

• Industrial machinery: Plastic injection molding machines, presses, and test rigs.

• Mobile equipment: Excavators, cranes, loaders, and road rollers.

• Heavy-duty applications: Mining, marine, and construction machinery requiring high flow rates.

4. How does the A10VSO140 differ from the A10VSO100?

Feature    A10VSO100    A10VSO140
Displacement    100 cm³/rev    140 cm³/rev
Flow capacity    Lower    Higher
Power handling    Medium systems    High-power systems
Applications    Light/medium loads    Heavy machinery

5. What are common A10VSO140 failures and solutions?

• Low/no flow: Check for clogged filters, low oil levels, or air ingress in suction lines.

• Overheating: Caused by excessive load, poor cooling, or contaminated oil. Ensure proper oil viscosity and clean heat exchangers.

• Leakage: Inspect shaft seals, valve plates, or worn piston assemblies.

• Abnormal noise: May indicate bearing failure, misalignment, or cavitation.

6. How to maintain the A10VSO140?

• Use ISO VG 46 or equivalent hydraulic oil.

• Replace filters and monitor oil cleanliness regularly.

• Ensure external drain pressure does not exceed 1 bar to avoid seal damage.

• For repairs, use OEM or certified replacement kits (e.g., cylinder blocks, pistons, valve plates).

7. Where to buy parts or repair services?

• OEM parts: Rexroth distributors (e.g., part number R902426896).

• Third-party providers: Companies like Smile Hydraulics (repair kits) or Xinliyang Hydraulics (1-year warranty on repairs).

8. What are the model naming conventions?

Example: A10VSO140DFR1/31R-PPB12N00

• A10VSO140: Series and displacement.

• DFR1: Control type (pressure/flow regulation).

• 31R: Rotation direction (R = clockwise).

• PPB12N00: Port and seal configuration.

For technical documents or troubleshooting, consult Rexroth manuals or authorized service centers.