3520V30A12F

The 3520V30A12F pump belongs to the Vane Pumps series and is manufactured by Vickers for hydraulic automation systems that require two separate flow sources from a single drive shaft. The front pumping element provides the primary high-pressure flow. Its displacement is 97.7 cm³ per revolution, defining the volume transferred each shaft turn. The element can operate up to 2500 r/min so the circuit can achieve rapid actuator movement when needed. A maximum pressure of 210 bar permits reliable operation in heavy-duty industrial presses and injection molding machines. When the shaft reaches this speed, the front delivery reaches 211.5 L/min (55 USgpm), supplying substantial flow to large cylinders. At 1200 r/min the rated flow is 30 USgpm, a reference used when sizing return lines and coolers. Reaching maximum flow and pressure requires 87.7 kW (117.5 hp) of input power, so the prime mover must be sized to match. Fluid ports use SAE four-bolt flanges on the inlet and both outlets to maintain secure, leak-free connections.

The rear element supports auxiliary functions by delivering a lower flow at a reduced pressure. Its displacement is 39.5 cm³ per revolution, providing a proportionally smaller volume per turn. The element shares the 2500 r/min maximum speed limit, allowing both stages to run together without overspeed risk. A maximum pressure rating of 160 bar suits clamping, pilot, or lubrication circuits that do not need the higher front-stage capacity. At peak speed the rear delivery attains 98.1 L/min (25.5 USgpm), adding to the overall system output, while at 1200 r/min the rated flow is 12 USgpm for continuous duty. Achieving its maximum operating point calls for 28.4 kW (38 hp) of input power, which places a modest additional load on the drive motor. The complete assembly weighs 34.0 kg (75 lb), enabling installation with ordinary handling equipment and keeping structural demands on mounting brackets low.