Pump Size and Displacement:
The A28VO series is available in different sizes, each with a specific displacement range.
The displacement options vary from 28cc to 98cc, allowing you to select the most suitable pump for your application based on flow requirements.
Axial Piston Assembly:
At the core of the A28VO series is the axial piston assembly. It consists of a set of pistons arranged in a circular pattern within a cylinder block. These pistons are responsible for generating hydraulic pressure by reciprocating motion as the cylinder block rotates. The precision design ensures efficient operation and minimal friction losses.
The swashplate mechanism converts the rotational motion of the input shaft into reciprocating motion of the pistons. It consists of a tilted swashplate and a control angle mechanism. By adjusting the control angle, the displacement of the pump can be varied, enabling precise control of the hydraulic system's output flow.
Valve Plate Assembly:
The valve plate assembly manages the flow of hydraulic fluid to and from the pistons. It comprises a series of valve plates and port plates that control the inlet and outlet passages. The valve plates have precise machined channels that ensure smooth and efficient flow distribution, minimizing pressure losses.
The cylinder block houses the piston assembly and rotates within the pump housing. It is designed to withstand high pressures and provides a precise guide for the axial movement of the pistons. The cylinder block is made of high-quality materials and undergoes precise machining for durability and performance.
The A28VO series offers various control options to suit different application requirements. It supports both hydraulic and electronic control methods. Hydraulic control can be achieved through pressure compensators, flow control valves, or load sensing systems. Electronic control options include proportional and servo controls, allowing for advanced system integration and automation.
To prevent hydraulic fluid leakage, the A28VO series incorporates reliable shaft seals. These seals provide a tight seal between the rotating shaft and the pump housing, ensuring that the hydraulic system operates efficiently and prevents contamination.
Rexroth A28VO pumps are available in different mounting configurations, including flange, foot, and face mounting options.
This flexibility allows easy integration into various hydraulic system designs.
The A28VO series is compatible with a wide range of hydraulic fluids, including mineral oils, synthetic oils, and environmentally friendly fluids. This versatility enables the pump to be used in various applications across different industries.
Rexroth pumps are known for their robust design and ease of maintenance. The A28VO series features modular construction, which simplifies repairs and reduces downtime. Individual components, such as the piston assembly and valve plate, can be easily replaced, minimizing the need for extensive disassembly.