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    Air Pump Units

    Air Pump Units

    Power Workholding

    7250 psi max
    For Single-Acting and Double-Acting Systems
    A low-cost hydraulic power source that requires only a shop-air connection to operate. This compact, portable unit weighs only 14 lbs. Only 75-psi air pressure is required to provide 7250-psi hydraulic pressure. Suitable for smaller clamping fixtures and assembly operations where automatic pressure control is not required. Unlike Air Power Units, these Air Pump Units do not automatically restart to maintain system pressure and require a separate air regulator to set the hydraulic pressure at anything other than 7250 psi.

    Models Available

    Double-Acting Version

    For single-acting and double-acting systems. The pump is actuated by pushing a manually operated pneumatic valve that can be locked in open position. Clamping is then controlled by an integral 4-way hydraulic clamping valve. With the pneumatic valve permanently locked in open position, the pump compensates for small leaks, maintaining constant hydraulic pressure. Adjust output hydraulic pressure (4000 to 7250 psi range) by adjusting input air pressure using a separate air regulator. Integral check valve holds hydraulic pressure even if air supply fails.

    Single-Acting Version

    For single-acting systems only. The pump is controlled by a pedal-operated pneumatic valve. Pump operates only while the pedal is manually depressed. Press the lower portion of the pedal to clamp (unit pumps only until the desired operating pressure is achieved). Press the upper portion of the pedal to unclamp. Adjust output hydraulic pressure (4000 to 7250 psi range) by adjusting input air pressure using a separate air regulator. Integral check valve holds hydraulic pressure even if air supply fails.

    Mounting & Setup

    Mount horizontally or vertically. The unit is ready to run after you fill the reservoir with clean, approved Hydraulic Fluid and connect to an air supply. A separate air regulator is required to set the hydraulic pressure at anything other than 7250 psi. No air lubricator is required – unit can be operated with oil-free air. Do not use NPT fittings for hydraulic connections.

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    AIR PUMP UNIT DOUBLE ACTING CL-CLR-203-AP

    SKU: CL-CLR-203-AP
    MPN: CLR-203-AP
    Email Sales for Pricing
    Low-cost hydraulic power source that requires only a shop-air connection to operate. This compact, portable unit weighs only 14 lbs. Only 75-psi air pressure is required to provide 7500-psi hydraulic pressure. Suitable for smaller clamping fixtures and assembly operations where automatic pressure control is not required. Unlike Air Power Units, these Air Pump Units do not automatically restart to maintain system pressure, and require a separate air regulator to set hydraulic pressure at anything other than 7500 psi.

    AIR/HYDRAULIC PUMP, S.A. CL-CLR-200-AP

    SKU: CL-CLR-200-AP
    MPN: CLR-200-AP
    Email Sales for Pricing
    Low-cost hydraulic power source that requires only a shop-air connection to operate. This compact, portable unit weighs only 14 lbs. Only 75-psi air pressure is required to provide 7500-psi hydraulic pressure. Suitable for smaller clamping fixtures and assembly operations where automatic pressure control is not required. Unlike Air Power Units, these Air Pump Units do not automatically restart to maintain system pressure, and require a separate air regulator to set hydraulic pressure at anything other than 7500 psi.

    Air Pump Units