Pneumatic Servo Dispense System


Sealant Equipment & Engineering, Inc.’s new Pneumatic Servo Dispensing (PSD) system is a positive rod displacement metering system that combines the cost efficiency of a pneumatic drive motor with the controlling accuracy of a servo drive motor.  The PSD system uses a positive rod displacement metering principle for maximum dispensing precision and eliminates the need for a servo drive motor or material flow meters in a dispensing system.
    The PSD integrates a pneumatic drive motor and servo package to provide precise metered volumes, accurate flow control and consistent bead profiles. The PSD’s pneumatic cylinder and positive displacement meter are lightweight and assembled into a single compact metering module for floor, robot or pedestal mounting. A robot integrated PSD system provides precision dispensing of fluids with excellent response time for dispensing extruded beads.
    The PSD is designed for long life and maximum uptime. Components are readily accessed and easy to maintain. The PSD is operated by its own PSD Control Panel or by automation integrated controls with dispensing software for a smaller footprint, lower system cost and one-stop operator control of the entire robotic dispensing system.
The Pneumatic Servo Dispenser is ideal for dispensing applications such as adhesive bonding, casting, filling, gasketing, molding, sealing, many other operations and is designed dispense adhesives and sealants such as 1-part epoxies, mastics, silicones, urethanes and abrasive materials. A complete PSD meter system includes supply pumps and a dispense valve available in Tip-Seal®, No-Drip® and Snuf-Bak® models for accurate start-stop of material flow for dispensing beads, shots or dots in extruding, streaming, spray and high-speed stitching applications.


  • positive rod displacement metering principle
  • components are readily accessed
  • ideal for dispensing applications
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