Putzmeister A4VG125 Hydraulic Pump

Putzmeister A4VG125 Hydraulic Pump is a variable displacement axial piston pump developed for a high-pressure closed-circuit hydraulic system. This pump is commonly applied as a main drive pump in compatible Putzmeister concrete pumps, since in such machines precision in flow rate control, power transmission efficiency and fast direction change response are crucial factors. With nominal displacement 125 cm³/rev the pump ensures large hydraulic flow rate with controlled performance during the whole concrete pumping cycle.

The swashplate design allows varying the displacement depending on the needs of the hydraulic system. The amount of pump output is proportional to the rotation speed and displacement that is selected. Closed circuit design enables efficient operation of the pump in both forward and reverse mode providing circulation of the oil between the pump and the hydraulic drive. Charge pump unit is also provided for circuit replenishing, oil cooling and generation of required boost pressure.

The A4VG125 product line includes various control types and mounting arrangements. For the application in Putzmeister machines the EP electro-proportional control or HD hydraulic control can be applied depending on the machine type. Different versions of the pump may have different rotation direction, through-drive arrangement, flange type, shaft type and hydraulic positions. These variations make the complete identification code particularly important when selecting a replacement.

Some of the typical Putzmeister codes that could be linked with A4VG125 pump are 511127, 511130, 421418, 266680002 and 273904001. Code 421418 is generally associated with an A4VG125 EP pump, but there are other codes as well which may use HD controls and rear drive arrangements. Thus, matching the A4VG125 designation alone would not suffice to confirm the compatibility of the pump.

Rexton Hydraulic offers Putzmeister A4VG125 hydraulic pumps, suitable replacement parts and hydraulic pump repair services in India. The repair service include disassembly, inspecting and replacing the worn out parts, assembly and testing. Customers are advised to provide the nameplate details of the pump including Putzmeister code, pump name, machine model, configuration code, shaft details, flanges and controllers before placing any order.