Vickers 421AK Series Mobile Piston Pump | 421AK00564B, 421AK00814B | Variable Displacement Pump
| Model Number | 421AK |
|---|
Product Description
Vickers 421AK Series Mobile Axial Piston Variable Pump
Product Overview: The Vickers 421AK series is a high-pressure axial piston variable pump specifically engineered for mobile equipment and off-highway machinery. Renowned for its exceptional power-to-weight ratio and compact footprint, this series is widely utilized in harvesters, sprayers, road rollers, and various hydraulic systems requiring precise flow control. Core models such as the 421AK00564B and 421AK00814B leverage advanced compensator control logic to ensure stable output and fuel economy under extreme operational loads.
Key Technical Advantages:
Intelligent Variable Control: Models like the 421AK00325B are equipped with high-efficiency pressure/flow sensing controls. The pump instantaneously adjusts displacement based on actuator demand, preventing engine overload and minimizing hydraulic heat generation.
Optimized for Mobile Applications: The structural design is reinforced to withstand the frequent vibrations and shock loads typical of mobile machinery. Its heavy-duty bearing supports and precision-lapped piston components significantly extend service life in dusty and high-temperature environments.
Superior Volumetric Efficiency: Optimized port plate designs drastically reduce internal leakage, maintaining high power transmission efficiency even at rated high pressures, thereby boosting overall machine productivity.
Exact Configuration Match (421AK): Strictly matched to OEM specifications for codes like 421AK00791B, guaranteeing 100% compatibility with physical mounting dimensions and hydraulic porting for seamless field replacement.
Specific Models & Technical Parameters: This product range features core configurations: 421AK00564B, 421AK00814B, 421AK00325B, and 421AK00791B.
Type: Mobile Axial Piston Variable Pump.
Rated Pressure: Engineered for continuous high-pressure mobile duty cycles.
Mounting Interface: Complies with standard SAE mounting flanges and splined shaft specifications.
Control Options: Includes pressure compensation, load sensing, and other variable control methodologies.




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