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Servo controls deliver

Servos control an in-line piston filler, allowing the machine to change speed during a fill. Servos also improve overall fill speeds and fill accuracy.

Capmatic's Flowstar liquid filler includes servo motors and drives among its controls components.
Capmatic's Flowstar liquid filler includes servo motors and drives among its controls components.

Armed with Elau’s PacDrive servo controls, Capmatic’s Flowstar® in-line piston filler provides packagers with flexibility, speed, and accuracy, primarily for filling liquids and cremes in pharmaceutical, cosmetics, and personal care applications.

Capmatic introduced Flowstar last year. Uniquely versatile, it allows changeover from volumetric piston filling to mass flow metering because the filling nozzles are mounted on docking stations that are rolled in or out depending on the product requirements. The Elau servos, controlled by an Elau PacDrive controller, are integrated in the volumetric piston filler docking station. Capmatic selected Elau based on previous experience with the controls provider.

“The biggest advantage of using the Elau servo control is that [it permits] ‘profile’ filling,” says Michel Mosseau, director of sales for Capmatic. By profile, he’s referring to the shape of the container to be filled. With a tapered honey container, for example, the Flowstar could fill at a faster velocity “where it’s wider at the bottom,” then slow down the fill as the container narrows towards its top.

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