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    Highlights

    Machinedesign 18911 Rhc Promo G4 0
    Designers should understand the key factors that influence cylinder selection.
    Fig. 1
    Today’s electropneumatic postioning systems break from convention by offering efficient and reliable position and force control.
    Actuator photo collage
    Why are electric actuators increasingly replacing hydraulic and fluid-power actuators in demanding applications?
    Miriam Doerr/Dreamstime
    Robot playing a piano
    Researchers devise an air-powered computer memory that can control robots.
    iStock
    Hydraulic cylinders
    Off-the-shelf cylinders may be “good enough,” but custom ones often offer the best solution.
    Packaging operation
    Food and beverage applications pose special challenges for electric actuators.
    Actuator
    There are several methods for coordinating the motion of two or more actuators.
    Fig. 3
    Thomson Industries
    H-Track actuator
    In short, they can handle heavy loads in tight spaces.