A4VSO71DFR/10R-PPB13N00 A4VSO71DFR/10R-PZB13N00 A4VSO40DFR/10L-PPB13N00 A4VSO40DRG/10R-PPB13N00 A4VSO40EO2/10R-VPB13N00 Variable high-pressure industrial piston pump from Rexroth, Germany

FAQ:

A4VSO40 and A4VSO71 Axial Piston Variable Pumps

1. What are the A4VSO40 and A4VSO71 pumps?

The A4VSO40 and A4VSO71 are models of axial piston variable pumps from the A4VSO series, manufactured by Rexroth. They feature a swashplate design and are specifically engineered for use in open-circuit hydraulic systems. Their flow rate is proportional to both the input drive speed and the displacement volume, allowing for infinite variability of the output flow by adjusting the swashplate angle.

2. What are the key features and advantages of these pumps?

These pumps are recognized for their excellent suction characteristics, which contribute to high operational reliability. They operate at low noise levels and are designed for a long service life. Their modular design offers flexibility for various system integrations. Additional advantages include short response times and the capability for variable speed operation, making them suitable for demanding industrial applications.

3. What are the main technical specifications for the A4VSO40 and A4VSO71?

Key specifications for these pump models include:

• Nominal Pressure: 350 bar

• Peak Pressure: 400 bar

• A4VSO40 Specifics: Displacement of 40, approximate weight of 39 kg, maximum operating speed of 2600 rpm, and a flow rate of 104 L/min.

• A4VSO71 Specifics: Displacement of 71, approximate weight of 53 kg, maximum operating speed of 2200 rpm, and a flow rate of 156 L/min.

4. What are the typical applications for A4VSO pumps?

A4VSO series pumps, including the A4VSO40 and A4VSO71, are widely used across various industrial sectors. They are commonly found in heavy machinery, industrial hydraulic power units, and other applications requiring robust and efficient variable flow hydraulic power in an open-circuit configuration.

5. What types of hydraulic fluid can be used with these pumps?

These pumps are compatible with different types of hydraulic fluids. The standard fluid is mineral oil, often indicated by the absence of a specific identifier. They can also use HF (high-performance) fluids, sometimes designated with an 'E'. For high-speed applications, specific fluid types (sometimes indicated by 'H') may be recommended. Always consult the official technical documentation for the most precise and application-specific fluid recommendations.

6. Can these pumps be equipped with auxiliary pumps?

Yes, the A4VSO pump design can incorporate an auxiliary boost pump or a replenishing pump (a centrifugal pump). A standard pump might not include this feature, but a specific variant, such as version 25, can be supplied with a replenishing pump (denoted as 'L').