A20VLO pump

The A20VLO pump is an axial - piston variable - displacement double pump of the swash - plate design, produced by Bosch Rexroth. Here is an introduction to it:

Structural characteristics

1. Axial - piston swash - plate structure: It adopts an axial - piston structure with a swash - plate design. The piston is axially arranged with respect to the drive shaft, and the angle of the swash - plate can be adjusted to change the displacement of the pump.

2. Double - pump structure: It is a double - pump with two axial - piston rotary groups. The two pumps share an intermediate body, featuring a compact structure, small size, and convenient installation. The front and rear pumps have a symmetrical structure, which is easy to install and adjust, and can be independently controlled to meet the diverse design requirements of the system.

Working principle

The drive shaft rotates the cylinder block. As the cylinder block rotates, the pistons, which are connected to the swash - plate through slippers, reciprocate in the cylinder bores. When the angle of the swash - plate changes, the stroke of the pistons changes, thereby changing the volume of oil sucked and discharged by the pump, achieving variable - displacement control. The double - pump design allows the pump to supply two independent circuits with different flow rates.

Technical features

1. High - pressure resistance: The nominal pressure can reach 350 bar, and the maximum pressure can reach 400 bar, which is suitable for high - pressure hydraulic systems.

2. Wide displacement adjustment range: There are displacement specifications of 60, 95, 190, 260, and 520 cc available, and the output flow can be steplessly changed between the maximum and zero displacement.

3. Good energy - saving performance: The variable - displacement function can optimize energy consumption according to the actual working conditions, reduce waste, and improve the efficiency of the hydraulic system.

4. Fast response: It has a short response time and can quickly adapt to the changes of the hydraulic system's flow and pressure requirements.

Application scenarios

A20VLO pump is widely used in various industrial fields, such as construction machinery (excavators, loaders, etc.), agricultural machinery, marine machinery, mining machinery, and power plant equipment. It is also used in the hydraulic system projects of injection molding machines, die - casting machines, and steel plants, such as hydraulic system upgrades and energy - saving speed - up transformations.

Rexroth A20VLO hydraulic pump

Rexroth A20VLO Series Pumps