New A4VG Series Gear Pump

Description of A4VG Series Vane Pump

High energy efficiency and long service life
Low maintenance costs (long term)
suitable for a variety of industrial applications
High reliability and Excellent durability

A4VG Series Vane Pump Parameter Table:

 

 

 

 

Main Application Areas:

The A4VG series pump (Bosch axial piston variable pump) is primarily used in closed-loop hydraulic systems (static hydraulic drive), and is especially suitable for construction machinery (such as excavators, pavers, rollers, harvesters), port machinery, concrete pump trucks, and drive systems in industrial manufacturing. It enables efficient, high-pressure, and controllable power transmission, providing stepless variable control and direction reversal.

A4VG Series Vane Pump Product series model：

The following are examples of some common models of the A4VG series pump and their representative meanings to help with understanding:

1. Basic Model & Displacement (Nominal Displacement cm³/rev)

A4VG18: 18 cm³/rev

A4VG28: 28 cm³/rev

A4VG40: 40 cm³/rev

A4VG56: 56 cm³/rev

A4VG71: 71 cm³/rev

A4VG90: 90 cm³/rev

A4VG125: 125 cm³/rev

A4VG180: 180 cm³/rev

A4VG250: 250 cm³/rev

2. Control Type

HW/HR: Hydraulic control with servo piston/with valve core

EZ: Electrical two-point control (with switch)

EP: Electrical proportional control

DG: Hydraulic direct control

EL: Electric pilot proportional control

PV/PR: Hydraulic pilot control

3. Pressure Cut-off

-120: 120 bar (example value)

-150: 150 bar (example value)

-250: 250 bar (example value)

-350: 350 bar (example value)

4. Make-up Pump

1/32: With built-in make-up pump

2/32: With built-in make-up pump, with oil drain port

N: No built-in make-up pump

Example Combinations (actual models are more complex and contain many codes):

A4VG56EZ1K1/32R-150: A4VG series, 56cc, electrical two-point control, with pressure cut-off valve at 150 bar, built-in make-up pump

A4VG90EP4S00: A4VG series, 90cc, electrical proportional control, with servo piston control

A4VG180DR1/32R-250: A4VG series, 180cc, hydraulic pilot control, with pressure cut-off valve at 250 bar