A4FO16, A4FO22, A4FO28, A4MO16, A4MO22, and A4MO28 are axial piston fixed displacement pumps from the Rexroth brand. These pump models are suitable for the boom pumps of concrete pump trucks from brands such as Elephant (Schwing) and Putzmeister.
Product Features
• Universal High-Pressure Design: These pumps are universal high-pressure pumps with through-drive capabilities, featuring a nominal pressure of up to 400 bar and a maximum pressure of 450 bar, meeting the high-pressure demands of concrete pump trucks.
• Multiple Sizes Available: They offer a variety of sizes, such as A4FO22 and A4FO28, to accommodate different flow and power requirements.
• Open-Circuit Design: The A4FO series pumps are designed for open-circuit systems, making them suitable for the hydraulic systems of concrete pump trucks.
• High Efficiency and Stability: Utilizing high-precision machining techniques, these pumps ensure tight component fit, reducing friction losses and enhancing overall efficiency. Additionally, their carefully designed sealing systems effectively prevent hydraulic oil leakage, ensuring stable system operation.
Application Areas
These pumps are widely used in the construction machinery sector, particularly in equipment such as concrete pump trucks, cranes, excavators, loaders, and cement mixers. In concrete pump trucks, they serve as key components of the boom pumps, providing power support for the extension, retraction, and rotation of the boom, ensuring accurate and efficient delivery of concrete to designated locations.
Compatible Brands
• Elephant (Schwing): As a renowned brand in the concrete machinery field, Elephant pump trucks are known for their high efficiency, stability, and reliability. The A4FO/A4MO series pumps are perfectly compatible with the hydraulic systems of Elephant pump trucks, ensuring their smooth operation.
• Putzmeister: Also a leader in the concrete machinery sector, Putzmeister pump trucks enjoy a global reputation. The A4FO/A4MO series pumps are widely used in Putzmeister pump trucks, meeting their high hydraulic system requirements.