KOSMEK Air Over Oil Hydraulic Pump

KOSMEK Power Workholding

Product Information

KOSMEK Air Over Oil Hydraulic Pumps are compact, self-contained Double-Acting hydraulic power sources that convert compressed air into pressurized hydraulic fluid for powering clamps, cylinders, and other tooling components. The air-driven pump delivers high-volume output suitable for operating multiple clamps or actuators simultaneously, providing rapid extension and retraction cycles through a double-acting hydraulic circuit. A non-leak valve maintains hydraulic pressure even after air supply is disconnected, preserving clamp force and eliminating the need for continuous air consumption during hold periods.

The unit features manual control through a 3-position directional control valve, allowing independent command of extension, retraction, and neutral positions for double-acting or single-acting circuits. An integrated pressure gauge provides visual confirmation of system pressure, and an air regulator permits adjustment of output force to match application requirements. The portable reservoir design eliminates dependence on external hydraulic power sources or centralized systems. Construction includes mounting provisions on the reservoir base and port connections. Tank capacity is 3-liters (1.4-liter usable volume), larger tank sizes are available.