Axial Piston Variable Pump A4VG Series 32

this pump is a variable displacement axial piston pump designed for high-efficiency mobile and industrial hydraulics. It features electro-proportional (EP4D1) control for precise remote adjustment of pressure and flow, operates up to 350 bar with 125 cm³/rev displacement, and is configured with specific factory options per its suffix code. Ideal for excavators, cranes, and presses where intelligent power management is essential.

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A4VG125EP4D1/32L-NAF02F691DP

The pump is a high-performance, variable displacement axial piston pump designed for demanding mobile and industrial hydraulic systems. With a nominal displacement of 125 cm³/rev and capable of operating at pressures up to 350 bar, its key feature is the electro-proportional (EP4D1) control, which allows for precise remote adjustment of both pressure and flow via an electrical signal for optimal system efficiency and automation. The specific suffix code (*/32L-NAF02F691DP*) denotes a factory-configured set of options including porting, shaft, and control characteristics. This pump is ideal for applications like excavators, cranes, and presses, where energy savings, precise control, and reliable

performance are critical.

Hydraulic fluids

The axial piston unit is designed for operation with

HLP mineral oil according to DIN 51524.

Application instructions and requirements for hydraulic fluid selection, behavior during operation as well as disposal and environmental protection should be taken from the following data sheets before the start of project planning:

▶ 90220: Hydraulic fluids based on mineral oils and related hydrocarbons

▶ 90221: Environmentally acceptable hydraulic fluids

▶ 90222: Fire-resistant, water-free hydraulic fluids

(HFDR/HFDU)

▶ 90225: Limited technical data for operation with

water-free and water-containing fire-resistant hydraulic fluids (HFDR, HFDU, HFAE, HFAS, HFB, HFC).Filtration of the hydraulic fluid Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit.

A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406.

At a hydraulic fluid viscosity of less than 10 mm²/s (e.g. due to high temperatures during short-term operation), a cleanliness level of at least 19/17/14 according to ISO 4406 is required. For example, a viscosity of 10 mm²/s corresponds to the following temperatures with the following media:

▶ HLP 32 a temperature of 73 °C

▶ HLP 46 a temperature of 85 °C

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Axial Piston Variable Pump A4VG Series 32

A4VG125EP4D1/32L-NAF02F691DP

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